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Cheap flights from Belfast to London from £32

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to London departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

easyJet Logo
07:00 - 08:15BFS-SOU
1h 15mdirect
easyJet Logo
12:25 - 13:45SOU-BFS
1h 20mdirect
£34easyJet
Find Deal
Sun, 7 Sep - Fri, 26 Sep
easyJet Logo
13:35 - 14:50BFS-SOU
1h 15mdirect
easyJet Logo
15:20 - 16:40SOU-BFS
1h 20mdirect
£63easyJet
Find Deal
Sat, 13 Sep - Sat, 20 Sep
easyJet Logo
13:35 - 14:50BFS-SOU
1h 15mdirect
easyJet Logo
08:25 - 08:10SOU-BFS
23h 45m1 stop
£78easyJet
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
£83Aer Lingus
Find Deal
Wed, 27 Aug - Wed, 3 Sep
easyJet Logo
07:45 - 11:45BFS-SOU
4h 00m1 stop
easyJet Logo
09:00 - 21:40SOU-BFS
12h 40m1 stop
£85easyJet
Find Deal
Tue, 23 Sep - Wed, 24 Sep
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
15:45 - 17:20SOU-BHD
1h 35mdirect
£86Aer Lingus
Find Deal
Tue, 23 Sep - Wed, 24 Sep
Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Logo
09:00 - 14:30SOU-BHD
5h 30m1 stop
£128
Find Deal
Wed, 27 Aug - Wed, 3 Sep
Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Logo
09:00 - 14:30SOU-BHD
5h 30m1 stop
£130
Find Deal
Tue, 23 Sep - Wed, 24 Sep
British Airways Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
British Airways Logo
13:10 - 14:45SOU-BHD
1h 35mdirect
£282British Airways
Find Deal
Wed, 20 Aug - Mon, 25 Aug
British Airways Logo
10:55 - 12:35BHD-SOU
1h 40mdirect
British Airways Logo
18:10 - 08:25SOU-BHD
14h 15m2 stops
£319British Airways
Find Deal
Fri, 28 Nov - Fri, 5 Dec

Aer Lingus flights from Belfast to Southampton

Our best Aer Lingus deals on Belfast to Southampton flight tickets
Aer Lingus
27 Aug
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
3 Sept
SOU08:55Southampton Eastleigh
1h 35m
BHD10:30Belfast City
£83
Find similar
Aer Lingus
23 Sept
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
24 Sept
SOU15:45Southampton Eastleigh
1h 35m
BHD17:20Belfast City
£86
Find similar
Aer Lingus
25 Sept
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
28 Sept
SOU08:55Southampton Eastleigh
1h 35m
BHD10:30Belfast City
£88
Find similar

easyJet flights from Belfast to Southampton

Our best easyJet deals on Belfast to Southampton flight tickets
easyJet
7 Sept
BFS07:00Belfast Intl
1h 15m
SOU08:15Southampton Eastleigh
26 Sept
SOU12:25Southampton Eastleigh
1h 20m
BFS13:45Belfast Intl
£34
Find similar
easyJet
13 Sept
BFS13:35Belfast Intl
1h 15m
SOU14:50Southampton Eastleigh
20 Sept
SOU15:20Southampton Eastleigh
1h 20m
BFS16:40Belfast Intl
£63
Find similar
easyJet
13 Sept
BFS13:35Belfast Intl
1h 15m
SOU14:50Southampton Eastleigh
20 Sept
SOU08:25Southampton Eastleigh
23h 45m
1 stop
BFS08:10Belfast Intl
£78
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Belfast to Southampton 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 1 August 2025.
Use the filters below to find and compare flights from Belfast to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 7/9

07:00-08:15

Nonstop1h 15m

Southampton Eastleigh

Fri 26/9

12:25-13:45

Nonstop1h 20m

£34

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 13/9

13:35-14:50

Nonstop1h 15m

Southampton Eastleigh

Sat 20/9

15:20-16:40

Nonstop1h 20m

£63

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 13/9

13:35-14:50

Nonstop1h 15m

Southampton Eastleigh

Sat 20/9

08:25-08:10

1 stop23h 45m

£78

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 27/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 3/9

08:55-10:30

Nonstop1h 35m

£83

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Tue 23/9

07:45-11:45

1 stop4h 00m

Southampton Eastleigh

Wed 24/9

09:00-21:40

1 stop12h 40m

£85

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 23/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 24/9

15:45-17:20

Nonstop1h 35m

£86

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 27/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 3/9

09:00-14:30

1 stop5h 30m

£128

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 23/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 24/9

09:00-14:30

1 stop5h 30m

£130

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 20/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Mon 25/8

13:10-14:45

Nonstop1h 35m

£282

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 28/11

10:55-12:35

Nonstop1h 40m

Southampton Eastleigh

Fri 5/12

18:10-08:25

2 stops14h 15m

£319

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to London from

How to get the cheapest flight ticket from Belfast to Southampton

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 Southampton?

The month of March is, on average, the cheapest month to fly to Southampton from Belfast, with most prices found around £73. If you’re not able to fly to Southampton in March, then January is your next best option. Flight prices from Belfast to Southampton during January average around £78.

What is the cheapest day to depart on your flight to Southampton?

Our data shows that Monday is the least expensive day to fly to Southampton. Tickets to fly out on this day can be as low as £84. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £137. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southampton.

What is the cheapest time of day to depart on your flight to Southampton?

According to our data, the cheapest time of day to fly to Southampton is in the evening. momondo users have found flights departing from Belfast to Southampton in the evening for as low as £105. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £120 on average. Flights to Southampton from Belfast at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Belfast to Southampton Eastleigh flight route?

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

How far in advance should I book a flight to Southampton?

You are more likely to see cheaper flights to Southampton from Belfast when booking weeks ahead of your departure date. In general, you can expect to find flights to Southampton 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 Southampton from Belfast for as low as £66 on momondo.

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

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

Cheap Belfast to Southampton flight deals and tips

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

Best price found

£32

Fastest flight time

1h 15m

Direct flights

Every day

Airports in Southampton

1 airport
The best one-way flight to Southampton from Belfast in the past 72 hours is £32. The best return flight deal from Belfast to Southampton found on momondo in the last 72 hours is £34.
The fastest flight from Belfast to Southampton takes 1h 15m
Direct flights go from Belfast to Southampton every day.
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
Search flight deals

  • How far is Belfast to Southampton Eastleigh by plane?

    The distance between Belfast and Southampton Eastleigh is about 317.1 mi. In terms of flight time, this usually takes a little over 1h 15m.

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

    Prices for flights from Belfast to Southampton Eastleigh Airport are refreshed on a daily basis.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The required travel and health documents for your Southampton Eastleigh Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southampton Eastleigh Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Belfast to Southampton

Compare and see reviews for airlines that fly from Belfast to Southampton with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £43Free CancellationRating
6.9
1,822 reviews
Search easyJet flights
Aer LingusPriceFrom £65Free CancellationRating
7.1
1,192 reviews
Search Aer Lingus flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

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

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 Southampton from Belfast.

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

momondo does allow users to show only those flights to Southampton from Belfast which offer a flexible booking policy as well as other useful filters and features.

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

momondo provides multiple filters to help you find the best flight to Southampton from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to Southampton, momondo offers a useful price alert feature which will track prices for flights to Southampton from Belfast and alert you when they change.

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