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Cheap flights from Belfast City Airport to London from £53

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 City Airport to London departing on 10/1. 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

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Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
£92Aer Lingus
Find Deal
Wed, 10 Dec - Tue, 16 Dec
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£93Aer Lingus
Find Deal
Fri, 13 Feb - Mon, 16 Feb
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£95Aer Lingus
Find Deal
Fri, 13 Feb - Mon, 16 Feb
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
£101Aer Lingus
Find Deal
Wed, 10 Dec - Wed, 17 Dec
Multiple Airlines Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Multiple Airlines Logo
09:25 - 17:15SOU-BHD
7h 50m1 stop
£131Multiple Airlines
Find Deal
Wed, 10 Dec - Wed, 17 Dec
Multiple Airlines Logo
12:00 - 17:20BHD-SOU
5h 20m1 stop
Multiple Airlines Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
£137Multiple Airlines
Find Deal
Thu, 1 Jan - Tue, 6 Jan
KLM Logo
17:20 - 08:45BHD-SOU
15h 25m1 stop
KLM Logo
17:30 - 16:50SOU-BHD
23h 20m1 stop
£185KLM
Find Deal
Fri, 13 Feb - Mon, 16 Feb
easyJet Logo
17:45 - 17:20BHD-SOU
23h 35m1 stop
easyJet Logo
17:55 - 16:40SOU-BHD
22h 45m1 stop
£197easyJet
Find Deal
Wed, 10 Dec - Thu, 18 Dec
KLM Logo
06:30 - 08:10BHD-SOU
25h 40m1 stop
KLM Logo
18:05 - 16:50SOU-BHD
22h 45m1 stop
£207KLM
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Sun, 23 Nov - Sun, 30 Nov
British Airways Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
British Airways Logo
12:15 - 13:50SOU-BHD
1h 35mdirect
£228British Airways
Find Deal
Tue, 3 Mar - Wed, 4 Mar

Aer Lingus flights from Belfast City Airport to Southampton

Our best Aer Lingus deals on Belfast City Airport to Southampton flight tickets
Aer Lingus
10 Dec
BHD16:55Belfast City
1h 35m
SOU18:30Southampton Eastleigh
16 Dec
SOU08:55Southampton Eastleigh
1h 40m
BHD10:35Belfast City
£92
Find similar
Aer Lingus
13 Feb
BHD16:55Belfast City
1h 35m
SOU18:30Southampton Eastleigh
16 Feb
SOU19:00Southampton Eastleigh
1h 35m
BHD20:35Belfast City
£93
Find similar
Aer Lingus
13 Feb
BHD16:55Belfast City
1h 35m
SOU18:30Southampton Eastleigh
16 Feb
SOU19:00Southampton Eastleigh
1h 35m
BHD20:35Belfast City
£95
Find similar

KLM flights from Belfast City Airport to Southampton

Our best KLM deals on Belfast City Airport to Southampton flight tickets
KLM
13 Feb
BHD17:20Belfast City
15h 25m
1 stop
SOU08:45Southampton Eastleigh
16 Feb
SOU17:30Southampton Eastleigh
23h 20m
1 stop
BHD16:50Belfast City
£185
Find similar
KLM
23 Nov
BHD06:30Belfast City
25h 40m
1 stop
SOU08:10Southampton Eastleigh
30 Nov
SOU18:05Southampton Eastleigh
22h 45m
1 stop
BHD16:50Belfast City
£207
Find similar
KLM
1 Jan
BHD06:30Belfast City
10h 55m
1 stop
SOU17:25Southampton Eastleigh
3 Jan
SOU09:25Southampton Eastleigh
11h 35m
1 stop
BHD21:00Belfast City
£237
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Belfast City Airport 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 26 October 2025.
Use the filters below to find and compare flights from Belfast City Airport to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 10/12

16:55-18:30

Nonstop1h 35m

Southampton Eastleigh

Tue 16/12

08:55-10:35

Nonstop1h 40m

£92

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 13/2

16:55-18:30

Nonstop1h 35m

Southampton Eastleigh

Mon 16/2

19:00-20:35

Nonstop1h 35m

£93

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 13/2

16:55-18:30

Nonstop1h 35m

Southampton Eastleigh

Mon 16/2

19:00-20:35

Nonstop1h 35m

£95

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 10/12

16:55-18:30

Nonstop1h 35m

Southampton Eastleigh

Wed 17/12

08:55-10:35

Nonstop1h 40m

£101

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 10/12

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 17/12

09:25-17:15

1 stop7h 50m

£131

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 1/1

12:00-17:20

1 stop5h 20m

Southampton Eastleigh

Tue 6/1

08:55-10:35

Nonstop1h 40m

£137

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 13/2

17:20-08:45

1 stop15h 25m

Southampton Eastleigh

Mon 16/2

17:30-16:50

1 stop23h 20m

£185

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 10/12

17:45-17:20

1 stop23h 35m

Southampton Eastleigh

Thu 18/12

17:55-16:40

1 stop22h 45m

£197

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 23/11

06:30-08:10

1 stop25h 40m

Southampton Eastleigh

Sun 30/11

18:05-16:50

1 stop22h 45m

£207

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 3/3

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 4/3

12:15-13:50

Nonstop1h 35m

£228

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 City Airport 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 February is, on average, the cheapest month to fly to Southampton from Belfast City Airport, with most prices found around £80. If you’re not able to fly to Southampton in February, then March is your next best option. Flight prices from Belfast City Airport to Southampton during March average around £89.

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

Our data shows that Thursday is the least expensive day to fly to Southampton. Tickets to fly out on this day can be as low as £73. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around £140. 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 morning. momondo users have found flights departing from Belfast City Airport to Southampton in the morning for as low as £118. 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 in the afternoon when prices are £126 on average. Flights to Southampton from Belfast City Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Fly from Belfast City to Southampton Eastleigh for the best Belfast City - 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 City Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Southampton for around £126 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 City Airport for as low as £92 on momondo.

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

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

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

As of October 2025, prices for Belfast City Airport to Southampton flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from Belfast City Airport to Southampton

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

Cheap Belfast City Airport to Southampton (BHD to SOU) flight deals and tips

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

Best price found

£50

Fastest flight time

1h 35m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Southampton

1 airport
The best one-way flight to Southampton from Belfast City Airport in the past 72 hours is £50. The best return flight deal from Belfast City Airport to Southampton found on momondo in the last 72 hours is £113.
The fastest flight from Belfast City Airport to Southampton takes 1h 35m
Direct flights go from Belfast City Airport to Southampton on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. Airline offering direct flights is Aer Lingus..
There is 1 airport near Southampton: Southampton Eastleigh (SOU)
Search flight deals

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

    The straight-line distance from Belfast City to Southampton Eastleigh is 316.8 mi. In terms of flight time, this usually takes a little over 1h 35m.

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

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

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

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

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

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

Best airlines flying from Belfast City Airport to Southampton

Compare and see reviews for airlines that fly from Belfast City Airport to Southampton with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom £71Free CancellationRating
7.2
1,360 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Belfast City Airport to Southampton

    Across 12 Aer Lingus flights from Belfast City Airport to Southampton this week, the average price was £124, with the best Aer Lingus deals starting from £71 round-trip. 1,360 users have rated Aer Lingus on momondo, with an average score of 7.2/10.

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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Belfast to Southampton . Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Southampton from Belfast.

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

If you are not ready to book a flight from Belfast to Southampton now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Southampton and let you know when they change.

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