£22 Find Cheap Flights from Portsmouth to Belfast – Compare and Save

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 27/9. 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, 0 bags

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Everything you should know

Cheapest return fare
£41
Typical prices: £69-£119
easyJet
Sat 19/9Sun 27/9
SOU - BFS • Direct
Cheapest one-way flight
£22
Typical prices: £41-£57
easyJet
Sun 27/9
SOU - BFS • Direct
Direct flights
Every day
You can fly direct with Ryanair, Aer Lingus, and others. Average duration is 0
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
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Flight Deals

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

Sat, 19 Sep - Sun, 27 Sep
easyJet Logo
12:15 - 13:30SOU  Southampton Eastleigh-BFS Belfast Intl
1h 15mdirect
easyJet Logo
10:50 - 12:05BFS  Belfast Intl-SOU Southampton Eastleigh
1h 15mdirect
£41easyJet
Sat, 17 Oct - Sun, 18 Oct
easyJet Logo
12:15 - 13:30SOU  Southampton Eastleigh-BFS Belfast Intl
1h 15mdirect
easyJet Logo
10:50 - 12:05BFS  Belfast Intl-SOU Southampton Eastleigh
1h 15mdirect
£45easyJet
Mon, 28 Sep - Mon, 5 Oct
easyJet Logo
12:25 - 13:40SOU  Southampton Eastleigh-BFS Belfast Intl
1h 15mdirect
easyJet Logo
10:35 - 11:50BFS  Belfast Intl-SOU Southampton Eastleigh
1h 15mdirect
£47easyJet
Sat, 19 Sep - Sun, 27 Sep
easyJet Logo
12:15 - 13:30SOU  Southampton Eastleigh-BFS Belfast Intl
1h 15mdirect
easyJet Logo
10:50 - 12:05BFS  Belfast Intl-SOU Southampton Eastleigh
1h 15mdirect
£48easyJet
Sun, 30 Aug - Wed, 2 Sep
Aer Lingus Logo
08:55 - 10:35SOU  Southampton Eastleigh-BHD Belfast City
1h 40mdirect
Aer Lingus Logo
10:25 - 12:05BHD  Belfast City-SOU Southampton Eastleigh
1h 40mdirect
£77Aer Lingus
Tue, 25 Aug - Wed, 2 Sep
Aer Lingus Logo
16:15 - 17:50SOU  Southampton Eastleigh-BHD Belfast City
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD  Belfast City-SOU Southampton Eastleigh
1h 45mdirect
£77Aer Lingus
Sat, 29 Aug - Sun, 30 Aug
Aer Lingus Logo
16:45 - 18:20SOU  Southampton Eastleigh-BHD Belfast City
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD  Belfast City-SOU Southampton Eastleigh
1h 45mdirect
£78Aer Lingus
Sun, 30 Aug - Wed, 2 Sep
Multiple Airlines Logo
08:55 - 10:35SOU  Southampton Eastleigh-BHD Belfast City
1h 40mdirect
Multiple Airlines Logo
18:20 - 11:05BHD  Belfast City-SOU Southampton Eastleigh
16h 45m1 stop Glasgow Intl
£122Multiple Airlines
Fri, 23 Oct - Sun, 25 Oct
Multiple Airlines Logo
15:20 - 16:35SOU  Southampton Eastleigh-BFS Belfast Intl
1h 15mdirect
Multiple Airlines Logo
20:40 - 17:15BFS  Belfast Intl-SOU Southampton Eastleigh
20h 35m2 stops London Stansted Glasgow Intl
£125Multiple Airlines
Sat, 19 Sep - Sun, 27 Sep
Multiple Airlines Logo
12:15 - 13:30SOU  Southampton Eastleigh-BFS Belfast Intl
1h 15mdirect
Multiple Airlines Logo
22:00 - 19:30BFS  Belfast Intl-SOU Southampton Eastleigh
21h 30m2 stops Manchester Dublin
£127Multiple Airlines
Useful Info

Good to know - Cheap tickets from Portsmouth to Belfast

Cheapest flight

£22
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.

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.
First Class flights to Belfast
Business Class flights to Belfast
Premium Economy Class flights to Belfast
Economy class flights to Belfast