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Find cheap flights from Belfast Intl Airport to Portsmouth from £39

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast Intl to Portsmouth departing on 30/9. 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
Thu 27/6
Thu 4/7

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Good to know - Cheap tickets from Belfast Intl Airport to Portsmouth

Low season

February

High season

July

Cheapest flight

£39
Best time to beat the crowds (30% less expensive on average)
Most popular time to fly (47% more expensive on average)
Flight from Belfast Intl Airport to Southampton

When to book flights from Belfast Intl to Portsmouth

Are your dates flexible? Find out the best times to travel from Belfast Intl to Portsmouth based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

FAQs for booking flights from Belfast to Portsmouth

  • Which airports will I be using when flying from Belfast Intl Airport to Portsmouth?

    When flying out of Belfast Intl Airport you’ll be using Belfast Intl. Portsmouth does not have its own airport so you’ll be flying into nearby Southampton Eastleigh airport, which is 14.7 mi away.

  • How long does a flight from Belfast Intl Airport to Portsmouth take?

    Direct flights cover the 326 miles separating Belfast Intl Airport and Portsmouth in about 1h 15m.

  • What’s the cheapest day of the week to fly between Belfast Intl Airport and Portsmouth?

    Consider leaving on a Friday and avoid Sundays if you are looking for the best rates. For your return to Belfast Intl Airport, you’ll find the best rates on Thursdays and the most expensive ones on Sundays.

  • How does KAYAK find such low prices on flights from Belfast Intl Airport to Portsmouth?

    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 Belfast Intl Airport to Portsmouth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Belfast Intl Airport to Portsmouth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth from Belfast Intl 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 Belfast Intl Airport to Portsmouth?

    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 Portsmouth with an airline and back to Belfast Intl Airport with another airline.

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

    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 Portsmouth from Belfast Intl Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights from Belfast Intl Airport to Portsmouth

  • There is no airport in Portsmouth. Instead, you’ll be flying into Southampton Airport when flying between Belfast Intl Airport and Portsmouth.
  • The cheapest flight from Belfast to Portsmouth was found 84 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly is January.
See more tips

Top 4 airlines serving Belfast Intl to Portsmouth

 
Need help choosing which airline to fly with from Belfast Intl to Portsmouth? 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
Eastern AirwaysOverall score based on 14 reviews
7.5Food
6.7Entertainment
8.0Boarding
8.2Comfort
9.0Crew
Airline reviews

The flight was excellent and we appreciate that they ran the flight even though only 9 of us were on board!

10.0 ExcellentAnonymous, Aug 2023SOU - ORY
Read more about Eastern Airways reviews

The flight was excellent and we appreciate that they ran the flight even though only 9 of us were on board!

Excellent round trip from London Gatwick to Newquay Cornwall! Personable staff and crew, bags made it, flights on time. For me it was 5 stars.

For a small aircraft the choice of food and drinks was excellent compared to other ATR 72 operators. Checked in baggage as standard means easy boarding and disembarking for all.

I shall never book a budget airline flight ever again. Saturday morning flight to Belfast cancelled, rescheduled for following day, arriving 25 minutes before scheduled departure flight. I made the mistake of buying a non-flexible, non-refundable ticket options were so much more expensive. Alternative options offered by KAYAK did not come close in any way to my original booking; My first and last attempt to book a flight through Kayak.

Every flight on this airline is delayed, generally upto 2 hours for an internal flight. Very poor and absolute logistical disaster.

I fly to the USA every 6wks on Ave and 99% of the time I fly Aer Lingus. If I fly BA I’m always disappointed. My only criticism is the food. I’m vegan and over the last year it’s got slightly better these last couple of flights but on the whole it’s not good! Salad and fruit salad for breakfast and that’s also the starter and desert for the lunch/dinner and the main is usually rice with fried veg 😳the pasta is pretty good though. That’s been the last 2 meals…. Everything else is fantastic.

The flight was half full and I presume that the next few days are even less busy not sure why they are still charging a premium to change a flight.

Short flight so not much to rate. Surprised I had to pay for a soda.

the room on the plane was good but that is because flight not sold the other three seat and I had room. the food in terrible.

First the price I paid was excellent, my flight was full, but my seat was roomy. The one downside to the experience was they had games on the entertainment console. The guy behind me poked at my head about half the flight. I hope they get rid of this feature.

Very good need to offer better choice of food for business

There were a lot of empty rows. As a single passenger I should not have been seated with 2 others. The WiFi didn’t work. The Kosher meal was awful.

The transatlantic flight was wonderful. The regional reminded me of jet blue. Crazy and packed. Not enough overhead space and tough on elderly.

Thankfully not a full flight so although my headphone jack wasn’t working 100% on my window seat, I was able to move to the aisle seat. Food was fine, nothing great but tasty enough. Crew were friendly and made enough rounds. Always have a decent experience with Aer Lingus

Crew was fantastic got lovely food and plenty of water. Entertainment was good. Never had to ask for anything. Left on time and got to Seattle early. Luggage did not take long either.

Well Is extra charge for everything and other companies include that and the price.

Not great! Rude staff in London and the worse baggage reclaim I’ve ever seen. Great staff in flight but doubt I’ll fly with them again

You booked my 7 year old son to sit on his own without his mum and dad in s separate row between two unfriendly adult strangers. The plane was disgusting and dirty, aisles and everywhere sticky. The lounge waiting area was filthy carpet and had insufficient seats so we had to sit on it to wait for 35 minutes and my 7 year old sone played on this filthy lounge carpet. The outside of the plane appeared clean. The pilot was helpful with the route and what to expect weather etc.

Comfort isn’t a word one uses on economy airlines! Boarding was okay, delayed but okay, the flight was good, quick and time was made up.

The seat leg room seemed much tighter on the way home My cheese toasty wasn’t that hot - didn’t realise till half eaten

With stairs on a rainy tarmac, EasyJet flights are ok for younger travelers with backpack only. Seniors with mobility issues find it challenging 😰. However, the crew and disability assistance folks at both ends eased that discomfort as much as possible for their various roles. Kudos to airport and EasyJet employees for their kind service.

The flight boarded a little late but made up the time in flight - much appreciated. The staff were efficient and fairly friendly One of the toilets wasn’t working - having only one functioning toilet for a flight of hundreds isn’t really acceptable. I still find it amazing that the budget airlines can’t even offer free tap water to passengers.

Plane out was great, one back was cramped. Awful. Thankfully great crew!

Nothing flight was on time, and we boarded and disembarked easily

Pros: "Quick boarding and landed earlier than scheduled."
Cons: "The air-con was too cold. The seats don't allow you to sleep as there's no where to rest your head against."

The sad case is that BA is often late. I missed my connection outbound and then was rebooked in another biz class seat some 10 hours later. I opted to change to economy (no compensation refunded of course) that was only 5 hours later. On the return journey, once again changing planes was very challenging. This time we landed only a little bit late, but deplaning took a long time so the connection was very much in doubt. Some serious running and sweat later, I managed to make the connection but my luggage did not. No messages about the missing luggage, so I had to wait until the entire bag return process was over before seeking out an agent. There was only one and well over 50 passengers waiting to speaking with her. She was quite pleasant, but it took 1 hour and 45 minutes from touchdown to leaving the airport.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

BA charged me 70 euros for one bag on my return after having recognized my frequent flier status and charging me nothing for the same bag on the outbound. Their employees are not well trained and rules are inconsistently applied.

I couldn’t select my seat until I checked in at the airport. Extremely difficult to talk to a customer service representative. Also, the gate announcement doesn’t appear until less than an hour before boarding.

They over sold the flight and I was not able to board. Had to buy two tickets so I would not miss my connection.

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

On the flight from Venice to London even it’s short, 2 hours 20 minutes and mostly people are on vacation, it’s ridiculous to change money for the cup of tea or coffee. Also it’s to much to charge 80$ for 1 piece of luggage

Flying economy is like being packed into a sardine can.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

Book cheap flights from Belfast to Portsmouth

Cheapest flights to Portsmouth from Belfast found in 2024

Recent return flight deals

14/6Fri
directeasyJet
1h 15mBFS-SOU
17/6Mon
directeasyJet
1h 20mSOU-BFS
£60
16/6Sun
directeasyJet
1h 15mBFS-SOU
22/6Sat
directeasyJet
1h 20mSOU-BFS
£67
17/6Mon
directeasyJet
1h 15mBFS-SOU
23/6Sun
directeasyJet
1h 20mSOU-BFS
£71
19/7Fri
direct
1h 15mBFS-SOU
23/7Tue
2 stops
11h 50mSOU-BFS
£102
8/6Sat
directeasyJet
1h 15mBFS-SOU
10/6Mon
directeasyJet
1h 20mSOU-BFS
£113
14/6Fri
directeasyJet
1h 15mBFS-SOU
17/6Mon
1 stopeasyJet
6h 05mSOU-BFS
£122
17/6Mon
1 stopeasyJet
7h 40mBFS-SOU
23/6Sun
directeasyJet
1h 20mSOU-BFS
£122
20/7Sat
direct
1h 15mBFS-SOU
24/7Wed
2 stops
10h 35mSOU-BFS
£127
14/6Fri
direct
1h 15mBFS-SOU
17/6Mon
2 stops
13h 50mSOU-BFS
£129
16/6Sun
directeasyJet
1h 15mBFS-SOU
22/6Sat
1 stopeasyJet
11h 00mSOU-BFS
£138

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30/9Mon
directeasyJet
1h 15mBFS-SOU
£39
30/6Sun
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1h 15mBFS-SOU
£42
10/6Mon
directeasyJet
1h 15mBFS-SOU
£49
3/6Mon
directeasyJet
1h 15mBFS-SOU
£52
8/6Sat
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11/6Tue
2 stops
11h 10mBFS-SOU
£76
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1 stopeasyJet
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Last minute flights from Belfast Intl to Portsmouth

Last minute flight, train and bus deals

1/6Sat
directeasyJet
1h 15mBFS-SOU
9/6Sun
directeasyJet
1h 20mSOU-BFS
£132
29/5Wed
multi-stopeasyJet
13h 45mBFS-SOU
7/6Fri
directeasyJet
1h 20mSOU-BFS
£209
29/5Wed
multi-stopeasyJet
13h 45mBFS-SOU
7/6Fri
multi-stopeasyJet
11h 10mSOU-BFS
£292
1/6Sat
direct
1h 15mBFS-SOU
9/6Sun
multi-stop
11h 25mSOU-BFS
£354
1/6Sat
multi-stop
8h 45mBFS-SOU
9/6Sun
direct
1h 20mSOU-BFS
£359
29/5Wed
multi-stopeasyJet
26h 40mBFS-SOU
7/6Fri
multi-stopeasyJet
11h 10mSOU-BFS
£388
1/6Sat
multi-stop
8h 45mBFS-SOU
9/6Sun
multi-stop
11h 25mSOU-BFS
£553
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35h 45mBFS-SOU
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multi-stop
27h 25mSOU-BFS
£728

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