PDX - LHR

£192 Find Cheap Flights from Portland to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Heathrow departing on 25/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to London, as well as popular online travel agencies
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Cheap Flight Deals from Portland to Heathrow (PDX-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portland to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Portland to Heathrow

KAYAK's recommended return flight deals from the most popular airlines that fly from Portland to Heathrow.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Icelandair Logo
15:20 - 11:55PDX-LHR
12h 35m1 stop
Icelandair Logo
13:05 - 17:55LHR-PDX
12h 50m1 stop
£462Icelandair
Find Deal
Thu, 2 Oct - Tue, 14 Oct
Icelandair Logo
15:20 - 11:55PDX-LHR
12h 35m1 stop
Icelandair Logo
13:05 - 17:55LHR-PDX
12h 50m1 stop
£463Icelandair
Find Deal
Thu, 2 Oct - Tue, 14 Oct
Icelandair Logo
15:20 - 20:20PDX-LHR
21h 00m1 stop
Icelandair Logo
21:25 - 17:55LHR-PDX
28h 30m1 stop
£464Icelandair
Find Deal
Mon, 6 Oct - Mon, 13 Oct
 Logo
15:20 - 11:55PDX-LHR
12h 35m1 stop
 Logo
15:05 - 12:24LHR-PDX
53h 19m2 stops
Mon, 5 May - Thu, 29 May
British Airways Logo
19:25 - 13:00PDX-LHR
9h 35mdirect
British Airways Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
£504British Airways
Find Deal
Mon, 18 Aug - Tue, 26 Aug
British Airways Logo
19:25 - 13:00PDX-LHR
9h 35mdirect
British Airways Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
£505British Airways
Find Deal
Mon, 18 Aug - Tue, 26 Aug
 Logo
10:00 - 13:20PDX-LHR
19h 20m1 stop
 Logo
07:30 - 18:46LHR-PDX
19h 16m2 stops
Sun, 28 Sep - Tue, 7 Oct
Iberia Logo
19:25 - 13:00PDX-LHR
9h 35mdirect
Iberia Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
£541Iberia
Find Deal
Sun, 14 Sep - Mon, 22 Sep
Iberia Logo
19:25 - 13:00PDX-LHR
9h 35mdirect
Iberia Logo
15:40 - 17:35LHR-PDX
9h 55mdirect
£554Iberia
Find Deal
Sun, 10 Aug - Fri, 29 Aug
Virgin Atlantic Logo
15:35 - 11:20PDX-LHR
11h 45m1 stop
Virgin Atlantic Logo
20:55 - 11:20LHR-PDX
22h 25m1 stop
£561Virgin Atlantic
Find Deal
Wed, 25 Jun - Tue, 26 Aug

Expert advice for your flight from Portland to Heathrow

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are specific to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Finnair

Finnair's A350 features lower cabin altitude and higher humidity, enhancing passenger comfort.


Finnair's Wi-Fi is available on most long-haul flights, keeping you connected at good speeds.

Read more about Finnairby Gabriel Leigh
British Airways

Upgrade to premium economy for 18 cm extra legroom, enhancing comfort on long flights.


BA's premium economy offers priority boarding and larger baggage allowance for long-haul comfort.

Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more

KAYAK's insights & trends for Portland to Heathrow flights

Get data-powered insights and trends into flights from Portland to Heathrow to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to London Heathrow Airport?

The average price of all round-trip flights from Portland to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to London Heathrow Airport on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Portland to London Heathrow Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Portland to London Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Portland to London Heathrow Airport is April, where tickets cost £519 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £994 and £812 respectively.

Can I save money by flying with a stopover from Portland to London Heathrow Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of £1,786, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Portland to London Heathrow Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Portland to London Heathrow Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know - Cheap tickets from Portland to London Heathrow Airport

Low season

February

High season

September

Cheapest flight

£192
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly and prices are also 2% lower on average.
Flight from Portland to London Heathrow Airport

When to book flights from Portland to Heathrow

Are your dates flexible? Find out the best times to travel from Portland to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from Portland to Heathrow: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from Portland to Heathrow 
Verified travelerFlew with American AirlinesPDX-LHROct 2024
British Airlines is one of the best I’ve flown.
VictoriaFlew with British AirwaysPDX-LHRMay 2024
When we were boarding from Heathrow to Portland your boarding was great. The other way back was the usual one almost all together. In general the Heathrow Portland trip was better. The stuff also more friendly.
Verified travelerFlew with British AirwaysPDX-LHRApr 2024
Couldn’t figure out the entertainment system but I had a good book. Seats seem to be smaller.

FAQs for booking Portland to London Heathrow Airport flights

  • What is the cheapest flight from Portland to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Portland to London Heathrow Airport was £257 for a one-way ticket and £618 for a return.

  • Which airports will I be using when flying from Portland to London Heathrow Airport?

    Portland and London Heathrow Airport are both served by 1 main airport. You will leave Portland from Portland and will be arriving at London Heathrow.

  • Which airlines offer Wi-Fi service onboard planes from Portland to London Heathrow Airport?

    All the following airlines offer inflight Wi-Fi service on the Portland to London Heathrow Airport flight route: American Airlines, Delta, KLM, Virgin Atlantic, Air France, Lufthansa, and Air Canada.

  • Which aircraft models fly most regularly from Portland to London Heathrow Airport?

    The Boeing 787-10 Dreamliner is the aircraft model that flies most regularly on the Portland to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Portland to London Heathrow Airport?

    oneworld is the only airline alliance operating flights between Portland and London Heathrow Airport.

  • On which days can I fly direct from Portland to London Heathrow Airport?

    There are direct flights from Portland to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Portland to London, Virgin Atlantic or Iberia?

    The two airlines most popular with KAYAK users for flights from Portland to London are Virgin Atlantic and Iberia. With an average price for the route of £546 and an overall rating of 7.4, Virgin Atlantic is the most popular choice. Iberia is also a great choice for the route, with an average price of £521 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Portland to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Portland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Portland with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Portland to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Portland? 25% of our users found flights on this route for £357 or less one-way and £511 or less round-trip.

Prefer to fly direct from Portland to London Heathrow Airport?

Find which airlines fly direct from Portland Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Portland to London Heathrow

Monday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Tuesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Wednesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Thursday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Friday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Saturday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Sunday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

See more direct flights

Direct returns

London Heathrow to Portland

Monday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Tuesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Wednesday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Thursday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Friday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Saturday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

Sunday

Aer Lingus, Alaska Airlines, American Airlines, +4 more

Aer Lingus, Alaska Airlines, +5 more

See more direct flights
See more direct flights

Top 5 airlines serving from Portland to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Portland to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Virgin AtlanticOverall score based on 642 reviews
7.5Entertainment
8.1Crew
6.9Food
7.2Comfort
7.6Boarding
Airline reviews

I did not fly by vergin atlantic from bangalore to vasco da gama

2.0 MediocreAnthony, Apr 2025BLR - GOI
Read more Virgin Atlantic reviews

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

Seats were old and dirty, for a long haul flight you expect to be able to recline and for the av to work properly. Choice for vegans was fruit….

The Virgin Atlantic crew was very good. However, the equipment was OK, the seats were OK, but her bags did not arrive with me. Two bags showed up a day later and I’m still waiting for my third back.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

British Airways staff are very polite and willing to help.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The boarding process was a nightmare and though we were traveling business class, we were in Group 2 and the organization was terrible. The Business Class on this flight was crowded and did not feel clean and nice. Overall, I would not travel Business again on the American Airline flight through British Airways Not nearly special enough for the considerable cost .

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

3 hour delay on run way, not even a drink offered, staff seemed rude and rushed, felt unwell so asked twice for paracetamol and was told to wait, never got it

The flight itself was fine, but between the man in front of me putting his chair back, and the gentleman next to me who took up 50% of my seat, my back and neck are destroyed from the flight. I’m hoping for a better outcome flying back.

not enough crew for business class and not great service as a result. underwhelmed overall

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

We travelled with Level, which is a subsidiary of Iberia. They mixed up all our seats, downgraded few from premium economy fo economy. The crew were not professional, they seem to be in a rush! Also some with an attitude

Paid for “extra room” selected seat. Wasn’t a benefit. Also was in aisle and was bumped almost every time attendants walked down aisle. Should have saved the assigned seat money and let them select.

Everything OK , except the plane left more than an hour late so I couldn’t participate in an excursion I had that morning in Brcelona

Flight from Madrid to Dakar had no onboard entertainment for a business class. Not even a single screen . That was disappointing. The WiFi only worked for the first 45 mins of the flight.

very good all round. staff, food, entertainment, punctuality all very good

The cabin crew were great very helpful and accommodating. We had a fellow passenger throw up next to us. The flight crew did an amazing job cleaning up and reseating us. We did question as to if he should have been let on the flight as his condition was likely self imposed.

online check-in was horrible and didn't work either way

Horrible. Paid for seats for my family. Iberia changed planes and never notified us that the seats we paid extra for did not even exist on the plane. We were randomly placed on the plane. Thankfully, we were seated together. Upon boarding, my youngest daughter was pulled from the line and they just arbitrarily changed her seat 7 rows back from the rest of the family. I had to wait at the gate while they tried to see us back together. One of the most uncomfortable small spaces on a plane I’ve ever experienced. When I called Iberia, they first told me that no mistake was made that the plane was never changed. Yet my receipt for my paid seats were for rows that did not even exist on this type of plane we were getting on. They said that they would reimburse my money and I would get an email, but I’ve never received any information or emails regarding a refund for the seats that I had paid extra for. Then when we arrived in Madrid, one of the pieces of luggage that we had checked in was damaged to the point that the handle that was stowed in to the luggage was broken off by the crew members handling the luggage. The crew on the plane was very nice, but as far as the rest of the experience, I would be very hesitant to ever use Iberia again.

The airline refused to board me because I showed up only 50 minutes prior to departure time, despite the fact that shortly before that, when I arrived at the airport still in time, they changed the terminal and I had to take a bus that took 20 minutes. Keep in mind that for some maintenance error I could not check in online like I usually do. Personnel at the airport was unable to let me in, customer care was beyond useless, the original airline operator (Iberia) was as useless as a toilet paper roll core in time of a wipe and all this uselessness made me waste my ticket, my reservations, my long time parking, food and most of all the joy of being with my family for the new year after working my bottom off even at Christmas. Am I happy? Come and ask me in person!

The airline refused to board me because I showed up only 50 minutes prior to departure time, despite the fact that shortly before that, when I arrived at the airport still in time, they changed the terminal and I had to take a bus that took 20 minutes. Personal at the airport was unable to let me in, customer care was beyond useless, the original airline operator (Iberia) was as useless as a toilet paper roll core in time of a wipe and all this uselessness made me waste my ticket, my reservations, my long time parking, food and most of all the joy of being with my family for the new year after working my bottom off even at Christmas. Am I happy? Come and ask me in person!

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Experience was good. Could have been better if we didn’t have to board an hour before the flight to ghana and miss relaxing time in the lounge. That process was very stressful

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

They took my carry on and checked it in. Staff in general at Heathrow are not friendly or helpful

The crew were professional and friendly. It was the most uncomfortable international flight I've ever flown. Crammed in passengers. No overhead space to put my bag. No leg room and unable to recline seat due to seats too close together so it upset passenger behind me! Upgrade price to get 2 inches of more space unreasonable.

Everything you need to know for your flight from Portland to Heathrow

Information on your arrival and departure airports

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