£26 Find Cheap Flights from Portsmouth to Belfast

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Belfast departing on 26/9. 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
1 adult, Economy

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Cheap Flights from Portsmouth to Belfast

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portsmouth to Belfast 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Portsmouth to Belfast

Fri, 17 Oct - Sun, 19 Oct
easyJet Logo
12:15 - 13:35SOU-BFS
1h 20mdirect
easyJet Logo
10:10 - 11:25BFS-SOU
1h 15mdirect
£63easyJet
Find Deal
Thu, 2 Oct - Mon, 6 Oct
easyJet Logo
15:05 - 16:25SOU-BFS
1h 20mdirect
easyJet Logo
10:05 - 11:20BFS-SOU
1h 15mdirect
£73easyJet
Find Deal
Sun, 28 Sep - Sat, 4 Oct
Aer Lingus Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£81Aer Lingus
Find Deal
Sun, 28 Sep - Sat, 4 Oct
Aer Lingus Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£81Aer Lingus
Find Deal
Thu, 16 Oct - Tue, 21 Oct
Multiple Airlines Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
Multiple Airlines Logo
10:40 - 08:30BHD-SOU
21h 50m1 stop
£95Multiple Airlines
Find Deal
Mon, 6 Oct - Thu, 9 Oct
Multiple Airlines Logo
20:30 - 15:20SOU-BFS
18h 50m2 stops
Multiple Airlines Logo
13:05 - 14:20BFS-SOU
1h 15mdirect
£131Multiple Airlines
Find Deal
Thu, 4 Dec - Sun, 7 Dec
KLM Logo
08:50 - 21:00SOU-BHD
12h 10m1 stop
KLM Logo
17:20 - 08:10BHD-SOU
14h 50m1 stop
£207KLM
Find Deal
Fri, 3 Oct - Sat, 11 Oct
British Airways Logo
12:30 - 14:05SOU-BHD
1h 35mdirect
British Airways Logo
10:10 - 11:55BHD-SOU
1h 45mdirect
£225British Airways
Find Deal
Wed, 8 Oct - Thu, 9 Oct
British Airways Logo
15:45 - 17:20SOU-BHD
1h 35mdirect
British Airways Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£226British Airways
Find Deal
Fri, 5 Dec - Sun, 7 Dec
KLM Logo
17:30 - 16:50SOU-BHD
23h 20m1 stop
KLM Logo
17:20 - 08:10BHD-SOU
14h 50m1 stop
£238KLM
Find Deal

Everything you should know

Cheapest return fare
£63
Overall average: £86
easyJet
Fri 17/10Sun 19/10
SOU - BFS • Direct
Cheapest one-way flight
£26
Typical prices: £40-55
easyJet
Fri 26/9
SOU - BFS • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Belfast!
Useful Info

Good to know - Cheap tickets from Portsmouth to Belfast

Cheapest flight£26
Flight from Southampton to Belfast Intl Airport

When to book flights from Portsmouth to Belfast

Are your dates flexible? Find out the best times to travel from Portsmouth to Belfast 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 Portsmouth to Belfast

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

    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 Portsmouth to Belfast.

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

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

  • What is the Hacker Fare option on flights from Portsmouth to Belfast?

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

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

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

Reviews of the top airlines flying from Portsmouth to Belfast

 
Need help choosing which airline to fly with from Portsmouth to Belfast? 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.
7.2
Aer LingusOverall score based on 1277 reviews
8.0Crew
6.5Food
7.3Boarding
7.1Comfort
6.9Entertainment
Airline reviews

Delays resulting in missed connecting flight. Attendant failed to arrange special assistance as promised to get us on connecting flight. Robyn was the particular attendant.

6.0 GoodAnonymous, Sept 2025LHR - DUB
Read more Aer Lingus reviews

Delays resulting in missed connecting flight. Attendant failed to arrange special assistance as promised to get us on connecting flight. Robyn was the particular attendant.

Very good except for the boarding process which was more hectic than it should have been

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

It was fine. Not worth the premium price. Overhead bins were so high I could barely reach and no crew offered to help me. Average food. Lounge in Dublin - 51st and green- absolutely appalling. Plagued with hordes of flies, dirty, meager food and beverages. Shameful.

Best travel day I've had in a long time. Everything went perfectly, no delays. 10 out of 10

Seat is business could have been a lot cleaner, but space was nice and seat was comfortable

Poor check-in experience in Manchester. Delayed boarding and check-in agent never explained how to transfer in NYC to JetBlue.

The space between seats has reduced even further making it extremely uncomfortable. Couldn't even open the tray table properly or got compressed the moment the front guy reclined.

The seat pitch was a little tight for me, but I survived. There was a volatile, enraged passenger a couple of rows ahead of me and the cabin crew defused and resolved the situation calmly, quickly, and successfully.

First -the flight was late - more than two hours Second, not even a bottle of water at bord to give for free for this inconvenience. Three-at landing ive realised that I've lost one of my ear plug headphones and been very desperate to find it with my torch, the crew not helped at all more than that they asked to leave the plane as everyone did before me. This was the last flight from that day- extra 5 min for me with a bit of help from crew - would have bring a super review. I guess this days humanity disappeared!

I got caught using a stolen credit card number. Michelle Siziba is my name Nice to London Gatwick on 7/31/25.

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

Everything you need to know for your flight from Portsmouth to Belfast

Cabin class types available on flights to Portsmouth

Cabin classes available on flights to Portsmouth. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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