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LHR - PWM

£510 Find cheap flights from London Heathrow Airport to Portland

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Portland departing on 8/10. 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
0 bags
Sat 15/6
Sat 22/6

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Portland, 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 London to Portland, as well as popular online travel agencies
In the last 7 days, travellers have searched 42,211,976 times on KAYAK, and here's why:

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Cheap flight deals from Heathrow to Portland (LHR-PWM)

 
These are the cheapest deals for flights from Heathrow to Portland currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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 Heathrow to Portland

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Heathrow to Portland.

Recent one-way flight deals from Heathrow to Portland

Only flying one-way? Below are some of the best one-way flight deals from Heathrow to Portland found on KAYAK recently.

Recent last-minute flight deals from Heathrow to Portland

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Heathrow to Portland.

Recent direct flight deals from Heathrow to Portland

The latest deals for direct flights from Heathrow to Portland so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Heathrow to Portland

Find recent round-trip train or bus tickets from Heathrow to Portland.

All round-trip flight deals to Portland

The cheapest plane tickets to Portland found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
07:25 - 21:28LHR-PWM
19h 03m1 stop
13:10 - 09:30PWM-LHR
15h 20m1 stop
£510JetBlue
Find Deal
Tue, 8 Oct - Tue, 22 Oct
07:25 - 21:28LHR-PWM
19h 03m1 stop
13:10 - 06:30PWM-LHR
12h 20m2 stops
£542JetBlue
Find Deal
Tue, 8 Oct - Tue, 22 Oct
13:40 - 22:14LHR-PWM
13h 34m1 stop
07:10 - 22:40PWM-LHR
11h 30m1 stop
£696Finnair
Find Deal
Mon, 21 Oct - Sat, 2 Nov
13:40 - 22:14LHR-PWM
13h 34m1 stop
07:10 - 22:40PWM-LHR
11h 30m1 stop
£698Finnair
Find Deal
Mon, 21 Oct - Sat, 2 Nov
07:30 - 21:09LHR-PWM
18h 39m2 stops
13:54 - 20:50PWM-LHR
26h 56m1 stop
£712United Airlines
Find Deal
Mon, 21 Oct - Sat, 2 Nov
13:05 - 23:59LHR-PWM
15h 54m2 stops
16:45 - 06:55PWM-LHR
10h 10m1 stop
£722United Airlines
Find Deal
Mon, 21 Oct - Sat, 2 Nov
06:30 - 23:21LHR-PWM
21h 51m2 stops
14:08 - 12:15PWM-LHR
17h 07m1 stop
£772Delta
Find Deal
Fri, 14 Jun - Fri, 21 Jun
11:45 - 00:24LHR-PWM
17h 39m2 stops
14:08 - 12:15PWM-LHR
17h 07m1 stop
£781Delta
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Sat, 15 Jun - Sat, 22 Jun
11:35 - 22:00LHR-PWM
15h 25m1 stop
14:35 - 08:05PWM-LHR
12h 30m1 stop
£1,204KLM
Find Deal
Fri, 26 Jul - Sat, 10 Aug
11:35 - 22:00LHR-PWM
15h 25m1 stop
12:55 - 06:45PWM-LHR
12h 50m1 stop
£1,240KLM
Find Deal
Thu, 25 Jul - Sat, 10 Aug
15:35 - 18:59LHR-PWM
56h 24m3 stops
Wed, 22 May
15:35 - 18:59LHR-PWM
56h 24m3 stops
Wed, 22 May
18:00 - 11:31LHR-PWM
22h 31m2 stops
£686Air Canada
Find Deal
Mon, 16 Sep
07:25 - 13:24LHR-PWM
10h 59m1 stop
£805JetBlue
Find Deal
Wed, 22 May
06:00 - 08:49LHR-PWM
31h 49m2 stops
£818TAP AIR PORTUGAL
Find Deal
Wed, 31 Jul
06:45 - 17:57LHR-PWM
16h 12m3 stops
Wed, 31 Jul
08:50 - 09:09LHR-PWM
29h 19m2 stops
Wed, 22 May
07:25 - 13:24LHR-PWM
10h 59m1 stop
£967JetBlue
Find Deal
Wed, 22 May
21:10 - 09:09LHR-PWM
40h 59m2 stops
£1,039
Find Deal
Wed, 22 May
11:35 - 22:00LHR-PWM
15h 25m1 stop
£1,672Virgin Atlantic
Find Deal
Wed, 31 Jul

Flights from Heathrow to Portland - Travel Insights & Trends

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London Heathrow Airport to Portland, Maine, 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 London Heathrow Airport to Portland, Maine is February, where tickets cost £554 on average. On the other hand, the most expensive months are December and August, where the average cost of tickets is £877 and £854 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Heathrow Airport to Portland, Maine, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London Heathrow Airport to Portland, Maine, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 51 days before departure.

Which airlines provide the cheapest flights from London Heathrow Airport to Portland?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Portland from London Heathrow Airport were found on Air Canada (£686) and JetBlue (£805), and the lowest return tickets were found on JetBlue (£510) and Air Canada (£646).

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

Low season

March

High season

October

Cheapest flight

£510
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly and prices are also 14% lower on average.
Flight from London Heathrow Airport to Portland

When to book flights from Heathrow to Portland

Are your dates flexible? Find out the best times to travel from Heathrow to Portland 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.

FAQs for booking London Heathrow Airport to Portland flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Portland, Maine was £747 for a one-way ticket and £647 for a return.

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

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at Portland, also known as Portland.

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

    We unfortunately don’t have that data for this specific route.

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

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between London Heathrow Airport and Portland, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from London to Portland, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from London to Portland are Delta and KLM. With an average price for the route of £906 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of £582 and an overall rating of 7.8.

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

    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 London Heathrow Airport to Portland.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from London Heathrow Airport 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 London Heathrow Airport to Portland?

    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 Portland with an airline and back to London Heathrow Airport with another airline.

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

    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 Portland from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Heathrow to Portland

 
See real verified KAYAK customer reviews for airlines flying from London to Portland. 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 Heathrow to Portland? 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.
8.0
DeltaOverall score based on 10673 reviews
8.2Boarding
7.4Food
8.6Crew
7.9Comfort
8.0Entertainment
Airline reviews

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

4.0 OkayJoanne, May 2024MIA - JFK
Read more about Delta reviews

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

The boarding was horrible. You couldn’t hear the announcements at all. Probably because there is so much in the area for businesses. They need a louder PA system. Other than that it was a good Delta experience.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

We left one hour late because of technical difficulties. The economy comfort seats are great for the price. The crew was mediocre, they do not provide a pleasant experience, they just deliver food and drinks and give orders, not very amicable, no service and hospitality focus.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

One of the vstewardeses wanted to bump me of the plane for absolutely nothing. There is CCTV in the plane ans everything can be verified. Very disappointing , you all will see, o other 5 years and the passangers who does not smile to flight attendent will be bumped off...

Mostly fine. Minor delays departing and arriving. Quite a cramped plane, not so much as regards legroom but very narrow seats. Quiet nice food. Non-working USB charger. Flight attendants were helpful but not particularly proactive — one had to work to get their attention (but all was fine once they notice you), very Dutch style:)

I travel frequently. The flight was late again... KLM should really try and be on time

The flight itself it was great nice food the crew were very nice and helpful, Checking in from Birmingham wasn't great long queues for bag dropped, And I had my hand luggage case taken away from me even though I requested to have it with me as I had breakables items. I was told I can not because of the length of the flight with no explanation at all no options was given for me to take my fragile items out of my case it was taken away with hold buggage I find the staff member who was checking me in very unpleasant !! Can we please be advise if the rules have changed about the the carry on hand luggage it will be easier to be advise on booking your tickect if we not allowed to take the hand luggage with me. Overall I had a good flight .

The plane was clean and the staff was friendly. Food and drinks as expected on international flights. The entertainment system was old style, with a pullout controller, and selections not as extensive as on other flights.

The food quality is poor. The staff are very friendly and accommodating. The entertainment program was limited. I experienced a delay of 30 minutes due to two issues. Passenger luggage had to be removed and there was a technical issue with the stairs not detaching from the aircraft. The pilot managed to compensate and we arrived only 15 minutes later. The luggage at Dubai airport was very slow. I waited over an hour.

I requested wheel chair assistance , it was confirmed via email that inwoood get it but I didn’t get it . The last leg of my trip to Nigeria was the worst.

One of their staff was so rude with discriminative. Such a reputed airline shouldn't hire such kind of arrogant attendants.

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Had a nice flight to London on BA will fly with them again in the future

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

We enjoyed that we boarded and took off on time. We didn’t like that our connection flight was a twenty minute walk through the airport with only one hour in between flights.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

It was okay, no wifi or entertainment real disappointment. Staff onboard not very friendly.

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

It started with multiple delays, cancellations, re booking, 5 hour lay over and finally on a plane from Chicago to Pittsburgh. Gates, times, etc were changed multiply times. Once on the plane, staff was fine, but built in tv did not work and could not even turn it off. Light at eye level the entire trip, so sleeping was near impossible. No snacks or drinks given.

Book cheap flights from London to Portland

Cheapest flights to Portland from London found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Portland found on KAYAK in the last 72 hours.
22/5Wed
3 stops
56h 24mLHR-PWM
£589
22/5Wed
3 stops
56h 24mLHR-PWM
£615
16/9Mon
2 stopsAir Canada
22h 31mLHR-PWM
£686
22/5Wed
1 stopJetBlue
10h 59mLHR-PWM
£805
31/7Wed
2 stopsTAP AIR PORTUGAL
31h 49mLHR-PWM
£818
31/7Wed
3 stops
16h 12mLHR-PWM
£914
22/5Wed
2 stops
29h 19mLHR-PWM
£916
22/5Wed
1 stopJetBlue
10h 59mLHR-PWM
£967
22/5Wed
2 stops
40h 59mLHR-PWM
£1,039
31/7Wed
1 stopVirgin Atlantic
15h 25mLHR-PWM
£1,672

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London Heathrow Airport - Portland Flights

Departure:

London Heathrow Airport (undefined)United Kingdom

Destination:

Portland (PWM)United States

Return flight deals:

Portland - London Heathrow Airport

Cabin classes: