Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Southampton to Belfast from £55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Belfast departing on 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Southampton to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
easyJet Logo
09:20 - 17:00SOU-BFS
7h 40m1 stop
easyJet Logo
12:30 - 08:50BFS-SOU
20h 20m1 stop
£99easyJet
Find Deal
Tue, 9 Dec - Tue, 16 Dec
easyJet Logo
17:45 - 07:25SOU-BFS
13h 40m1 stop
easyJet Logo
11:30 - 17:45BFS-SOU
6h 15m1 stop
£125easyJet
Find Deal
Fri, 30 Jan - Sun, 1 Feb
easyJet Logo
09:20 - 17:00SOU-BFS
7h 40m1 stop
easyJet Logo
13:35 - 17:20BFS-SOU
3h 45m1 stop
£142easyJet
Find Deal
Tue, 9 Dec - Thu, 18 Dec
easyJet Logo
09:20 - 17:00SOU-BFS
7h 40m1 stop
easyJet Logo
08:10 - 08:50BFS-SOU
24h 40m2 stops
£155easyJet
Find Deal
Tue, 9 Dec - Tue, 16 Dec
Multiple Airlines Logo
09:25 - 12:45SOU-BFS
3h 20m1 stop
Multiple Airlines Logo
19:45 - 13:45BFS-SOU
18h 00m2 stops
£158Multiple Airlines
Find Deal
Wed, 10 Dec - Thu, 11 Dec
Multiple Airlines Logo
08:10 - 23:25SOU-BFS
15h 15m2 stops
Multiple Airlines Logo
20:50 - 08:50BFS-SOU
12h 00m1 stop
£160Multiple Airlines
Find Deal
Fri, 5 Dec - Mon, 8 Dec
Multiple Airlines Logo
08:10 - 08:25SOU-BFS
24h 15m2 stops
Multiple Airlines Logo
11:30 - 17:45BFS-SOU
6h 15m1 stop
£161Multiple Airlines
Find Deal
Fri, 30 Jan - Sun, 1 Feb
Multiple Airlines Logo
09:20 - 17:00SOU-BFS
7h 40m1 stop
Multiple Airlines Logo
16:50 - 19:20BFS-SOU
26h 30m2 stops
£161Multiple Airlines
Find Deal
Tue, 9 Dec - Thu, 18 Dec
Multiple Airlines Logo
08:10 - 08:25SOU-BFS
24h 15m2 stops
Multiple Airlines Logo
11:30 - 17:45BFS-SOU
6h 15m1 stop
£162Multiple Airlines
Find Deal
Fri, 30 Jan - Sun, 1 Feb
Multiple Airlines Logo
09:25 - 12:45SOU-BFS
3h 20m1 stop
Multiple Airlines Logo
21:40 - 13:45BFS-SOU
16h 05m2 stops
£164Multiple Airlines
Find Deal
Wed, 10 Dec - Thu, 11 Dec

easyJet flights from Southampton to Belfast Intl Airport

Our best easyJet deals on Southampton to Belfast Intl Airport flight tickets
easyJet
9 Dec
SOU09:20Southampton Eastleigh
7h 40m
1 stop
BFS17:00Belfast Intl
16 Dec
BFS12:30Belfast Intl
20h 20m
1 stop
SOU08:50Southampton Eastleigh
£99
Find similar
easyJet
30 Jan
SOU17:45Southampton Eastleigh
13h 40m
1 stop
BFS07:25Belfast Intl
1 Feb
BFS11:30Belfast Intl
6h 15m
1 stop
SOU17:45Southampton Eastleigh
£125
Find similar
easyJet
9 Dec
SOU09:20Southampton Eastleigh
7h 40m
1 stop
BFS17:00Belfast Intl
18 Dec
BFS13:35Belfast Intl
3h 45m
1 stop
SOU17:20Southampton Eastleigh
£142
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to Belfast Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 5 November 2025.
Use the filters below to find and compare flights from Southampton to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Tue 9/12

09:20-17:00

1 stop7h 40m

Belfast Intl

Tue 16/12

12:30-08:50

1 stop20h 20m

£99

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 30/1

17:45-07:25

1 stop13h 40m

Belfast Intl

Sun 1/2

11:30-17:45

1 stop6h 15m

£125

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Tue 9/12

09:20-17:00

1 stop7h 40m

Belfast Intl

Thu 18/12

13:35-17:20

1 stop3h 45m

£142

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Tue 9/12

09:20-17:00

1 stop7h 40m

Belfast Intl

Tue 16/12

08:10-08:50

2 stops24h 40m

£155

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 10/12

09:25-12:45

1 stop3h 20m

Belfast Intl

Thu 11/12

19:45-13:45

2 stops18h 00m

£158

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 5/12

08:10-23:25

2 stops15h 15m

Belfast Intl

Mon 8/12

20:50-08:50

1 stop12h 00m

£160

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 30/1

08:10-08:25

2 stops24h 15m

Belfast Intl

Sun 1/2

11:30-17:45

1 stop6h 15m

£161

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Tue 9/12

09:20-17:00

1 stop7h 40m

Belfast Intl

Thu 18/12

16:50-19:20

2 stops26h 30m

£161

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 30/1

08:10-08:25

2 stops24h 15m

Belfast Intl

Sun 1/2

11:30-17:45

1 stop6h 15m

£162

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Wed 10/12

09:25-12:45

1 stop3h 20m

Belfast Intl

Thu 11/12

21:40-13:45

2 stops16h 05m

£164

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

How to get the cheapest flight ticket from Southampton to Belfast Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Belfast Intl Airport?

The month of January is, on average, the cheapest month to fly to Belfast Intl Airport from Southampton, with most prices found around £73. If you’re not able to fly to Belfast Intl Airport in January, then February is your next best option. Flight prices from Southampton to Belfast Intl Airport during February average around £88.

What is the cheapest day to depart on your flight to Belfast Intl Airport?

The cheapest day to depart from Southampton to Belfast Intl Airport is on a Wednesday when prices can be found for as low as £64. The most expensive day to fly to Belfast Intl Airport is Friday, with ticket prices averaging around £74.

What is the cheapest time of day to depart on your flight to Belfast Intl Airport?

The cheapest time of day to fly to Belfast Intl Airport is in the morning when flights can be purchased for as low as £89. In the afternoon is when there is more demand to fly to Belfast Intl Airport, so prices are often more expensive at around £108 per ticket.

What is the cheapest Southampton Eastleigh to Belfast Intl flight route?

Fly from Southampton Eastleigh to Belfast Intl for the best Southampton Eastleigh - Belfast Intl flight prices

How far in advance should I book a flight to Belfast Intl Airport?

You are more likely to see cheaper flights to Belfast Intl Airport from Southampton when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast Intl Airport for around £101 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast Intl Airport from Southampton for as low as £71 on momondo.

What cabin class options are available on Southampton Eastleigh to Belfast Intl flights?

There is only 1 cabin class available to choose from on Southampton Eastleigh to Belfast Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Southampton to Belfast Intl Airport flight prices changed over time?

As of November 2025, prices for Southampton to Belfast Intl Airport flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Southampton to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Southampton to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Southampton to Belfast Intl Airport (SOU to BFS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Belfast Intl Airport

Best price found

£54

Direct flights

None
The best one-way flight to Belfast Intl Airport from Southampton in the past 72 hours is £54. The best return flight deal from Southampton to Belfast Intl Airport found on momondo in the last 72 hours is £74.
There are no direct flights from Southampton to Belfast Intl Airport. There are no popular flight routes from Southampton to Belfast Intl Airport.
Search flight deals

  • How far is Southampton Eastleigh to Belfast Intl by plane?

    The distance between Southampton Eastleigh and Belfast Intl is about 327.5 mi. Flights usually cover this in 3h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to Belfast Intl Airport?

    Prices for flights from Southampton Eastleigh Airport to Belfast Intl Airport refresh daily.

  • How many operators does momondo search for flights from Southampton Eastleigh Airport to Belfast Intl Airport?

  • How old do you have to be to fly from Southampton Eastleigh Airport to Belfast Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Southampton Eastleigh Airport to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Southampton to Belfast Intl Airport?

  • What is the most popular airline from Southampton to Belfast Intl Airport?

Best airlines flying from Southampton to Belfast Intl Airport

Compare and see reviews for airlines that fly from Southampton to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £36Free CancellationRating
6.9
1,841 reviews
Search easyJet flights
Aer LingusPriceFrom £65Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Ballymena
Newry
Armagh
Cookstown
Dungannon
Portadown

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Belfast?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Belfast from Southampton.

Can I find flights from Southampton to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Southampton on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Southampton to Belfast?

Once all potential Southampton to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Southampton to Belfast right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Southampton to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Belfast Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 5/12
Fri 12/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast