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Cheap flights from Southampton to Belfast from £25

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 26/9. 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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Cheap return flights

easyJet Logo
15:05 - 16:25SOU-BFS
1h 20mdirect
easyJet Logo
13:35 - 14:50BFS-SOU
1h 15mdirect
£53easyJet
Find Deal
Thu, 9 Oct - Sat, 11 Oct
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£74Aer Lingus
Find Deal
Sat, 8 Nov - Sat, 15 Nov
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50BHD-SOU
1h 40mdirect
£79Aer Lingus
Find Deal
Mon, 24 Nov - Thu, 27 Nov
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£80Aer Lingus
Find Deal
Sat, 8 Nov - Sat, 15 Nov
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
£83Aer Lingus
Find Deal
Sun, 28 Sep - Fri, 3 Oct
easyJet Logo
11:25 - 14:40SOU-BFS
3h 15m1 stop
easyJet Logo
13:35 - 14:50BFS-SOU
1h 15mdirect
£96easyJet
Find Deal
Thu, 9 Oct - Sat, 11 Oct
KLM Logo
09:25 - 21:00SOU-BHD
11h 35m1 stop
KLM Logo
17:20 - 08:05BHD-SOU
14h 45m1 stop
£223KLM
Find Deal
Sat, 22 Nov - Thu, 27 Nov
British Airways Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
British Airways Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
£226British Airways
Find Deal
Sun, 23 Nov - Fri, 28 Nov
KLM Logo
09:25 - 21:00SOU-BHD
11h 35m1 stop
KLM Logo
06:30 - 17:00BHD-SOU
10h 30m1 stop
£273KLM
Find Deal
Sat, 22 Nov - Fri, 28 Nov

easyJet flights from Southampton to Belfast

Our best easyJet deals on Southampton to Belfast flight tickets
easyJet
9 Oct
SOU15:05Southampton Eastleigh
1h 20m
BFS16:25Belfast Intl
11 Oct
BFS13:35Belfast Intl
1h 15m
SOU14:50Southampton Eastleigh
£53
Find similar
easyJet
9 Oct
SOU11:25Southampton Eastleigh
3h 15m
1 stop
BFS14:40Belfast Intl
11 Oct
BFS13:35Belfast Intl
1h 15m
SOU14:50Southampton Eastleigh
£96
Find similar
easyJet
6 Oct
SOU11:05Southampton Eastleigh
20h 10m
1 stop
BFS07:15Belfast Intl
11 Oct
BFS13:35Belfast Intl
1h 15m
SOU14:50Southampton Eastleigh
£98
Find similar

KLM flights from Southampton to Belfast

Our best KLM deals on Southampton to Belfast flight tickets
KLM
22 Nov
SOU09:25Southampton Eastleigh
11h 35m
1 stop
BHD21:00Belfast City
27 Nov
BHD17:20Belfast City
14h 45m
1 stop
SOU08:05Southampton Eastleigh
£223
Find similar
KLM
22 Nov
SOU09:25Southampton Eastleigh
11h 35m
1 stop
BHD21:00Belfast City
28 Nov
BHD06:30Belfast City
10h 30m
1 stop
SOU17:00Southampton Eastleigh
£273
Find similar
KLM
23 Nov
SOU09:30Southampton Eastleigh
7h 20m
1 stop
BHD16:50Belfast City
27 Nov
BHD06:30Belfast City
10h 55m
1 stop
SOU17:25Southampton Eastleigh
£274
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Southampton to Belfast 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 15 September 2025.
Use the filters below to find and compare flights from Southampton to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 9/10

15:05-16:25

Nonstop1h 20m

Belfast Intl

Sat 11/10

13:35-14:50

Nonstop1h 15m

£53

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 8/11

08:55-10:35

Nonstop1h 40m

Belfast City

Sat 15/11

06:40-08:25

Nonstop1h 45m

£74

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Mon 24/11

08:55-10:35

Nonstop1h 40m

Belfast City

Thu 27/11

10:10-11:50

Nonstop1h 40m

£79

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 8/11

08:55-10:35

Nonstop1h 40m

Belfast City

Sat 15/11

06:40-08:25

Nonstop1h 45m

£80

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 28/9

08:55-10:30

Nonstop1h 35m

Belfast City

Sat 4/10

06:40-08:25

Nonstop1h 45m

£81

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 28/9

08:55-10:30

Nonstop1h 35m

Belfast City

Fri 3/10

06:40-08:25

Nonstop1h 45m

£83

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 9/10

11:25-14:40

1 stop3h 15m

Belfast Intl

Sat 11/10

13:35-14:50

Nonstop1h 15m

£96

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 22/11

09:25-21:00

1 stop11h 35m

Belfast City

Thu 27/11

17:20-08:05

1 stop14h 45m

£223

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 23/11

19:00-20:35

Nonstop1h 35m

Belfast City

Fri 28/11

16:55-18:30

Nonstop1h 35m

£226

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 22/11

09:25-21:00

1 stop11h 35m

Belfast City

Fri 28/11

06:30-17:00

1 stop10h 30m

£273

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from Southampton to Belfast

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?

The cheapest month to fly to Belfast from Southampton is in January. Flight prices, which tend to average around £70, are often lower during this time because this is during the off-season. If you aren’t able to travel to Belfast during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of £86.

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

The cheapest day to depart on your flight to Belfast is on a Wednesday when prices can be found for as low as £61. This is often the case because there is less demand to fly during this day of the week. Flights from Southampton to Belfast on a Friday will generally be more expensive and average around £72. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Belfast is in the morning when flights can be purchased for as low as £84. Flights to Belfast are more costly in the afternoon, with an average ticket price of £106. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Southampton Eastleigh to Belfast flight route?

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

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

You are more likely to see cheaper flights to Belfast from Southampton when booking weeks ahead of your departure date. In general, you can expect to find flights to Belfast for around £96 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Belfast from Southampton for as low as £60 on momondo.

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

There are 2 cabin classes available to choose from on Southampton Eastleigh to Belfast flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Southampton to Belfast flight deals and tips

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

Fastest flight time

1h 20m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Belfast

2 airports
The fastest flight from Southampton to Belfast takes 1h 20m
Direct flights go from Southampton to Belfast on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights..
There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)
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  • How far is Southampton Eastleigh to Belfast by plane?

    Southampton Eastleigh and Belfast are 317.1 mi apart from one another. In terms of flight time, this usually takes a little over 1h 20m.

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

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

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

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

    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.

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

    The travel and health documents you'll need for your trip to Belfast 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Southampton to Belfast

Compare and see reviews for airlines that fly from Southampton to Belfast with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £33Free CancellationRating
6.9
1,820 reviews
Search easyJet flights
Aer LingusPriceFrom £62Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Southampton to Belfast. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Southampton to Belfast flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Southampton to Belfast.

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

Price alerts on flights to Belfast from Southampton are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport