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Cheap flights from Belfast City Airport to London from £48

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 8/10. 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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Find the cheapest flights from Belfast City Airport to London (BHD-SOU)

Cheap return flights

Aer Lingus Logo
14:40 - 16:15BHD-SOU
1h 35mdirect
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
£85Aer Lingus
Find Deal
Wed, 5 Nov - Wed, 28 Jan
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
15:45 - 17:20SOU-BHD
1h 35mdirect
£90Aer Lingus
Find Deal
Tue, 2 Sep - Wed, 3 Sep
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
16:45 - 18:20SOU-BHD
1h 35mdirect
£99Aer Lingus
Find Deal
Sat, 1 Nov - Sat, 8 Nov
Aer Lingus Logo
14:40 - 16:15BHD-SOU
1h 35mdirect
Aer Lingus Logo
13:05 - 14:40SOU-BHD
1h 35mdirect
£102Aer Lingus
Find Deal
Fri, 28 Nov - Fri, 5 Dec
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
13:05 - 14:40SOU-BHD
1h 35mdirect
£102Aer Lingus
Find Deal
Fri, 28 Nov - Fri, 5 Dec
Aer Lingus Logo
14:40 - 16:15BHD-SOU
1h 35mdirect
Aer Lingus Logo
16:45 - 18:20SOU-BHD
1h 35mdirect
£106Aer Lingus
Find Deal
Sat, 7 Feb - Mon, 23 Feb
Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Logo
09:00 - 14:30SOU-BHD
5h 30m1 stop
£132
Find Deal
Tue, 2 Sep - Wed, 3 Sep
British Airways Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
British Airways Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
£227British Airways
Find Deal
Tue, 16 Sep - Sat, 20 Sep
British Airways Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
British Airways Logo
07:15 - 08:15SOU-BHD
25h 00m2 stops
£309British Airways
Find Deal
Sat, 1 Nov - Sat, 8 Nov
British Airways Logo
10:55 - 12:35BHD-SOU
1h 40mdirect
British Airways Logo
11:40 - 08:25SOU-BHD
20h 45m2 stops
£318British Airways
Find Deal
Fri, 28 Nov - Fri, 5 Dec

Aer Lingus flights from Belfast City Airport to Southampton

Our best Aer Lingus deals on Belfast City Airport to Southampton flight tickets
Aer Lingus
5 Nov
BHD14:40Belfast City
1h 35m
SOU16:15Southampton Eastleigh
28 Jan
SOU08:55Southampton Eastleigh
1h 40m
BHD10:35Belfast City
£85
Find similar
Aer Lingus
2 Sept
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
3 Sept
SOU15:45Southampton Eastleigh
1h 35m
BHD17:20Belfast City
£90
Find similar
Aer Lingus
1 Nov
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
8 Nov
SOU16:45Southampton Eastleigh
1h 35m
BHD18:20Belfast City
£99
Find similar

British Airways flights from Belfast City Airport to Southampton

Our best British Airways deals on Belfast City Airport to Southampton flight tickets
British Airways
16 Sept
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
20 Sept
SOU08:55Southampton Eastleigh
1h 35m
BHD10:30Belfast City
£227
Find similar
British Airways
1 Nov
BHD06:40Belfast City
1h 45m
SOU08:25Southampton Eastleigh
8 Nov
SOU07:15Southampton Eastleigh
25h 00m
2 stops
BHD08:15Belfast City
£309
Find similar
British Airways
28 Nov
BHD10:55Belfast City
1h 40m
SOU12:35Southampton Eastleigh
5 Dec
SOU11:40Southampton Eastleigh
20h 45m
2 stops
BHD08:25Belfast City
£318
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 21 August 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 5/11

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Wed 28/1

08:55-10:35

Nonstop1h 40m

£85

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 2/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 3/9

15:45-17:20

Nonstop1h 35m

£90

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 1/11

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 8/11

16:45-18:20

Nonstop1h 35m

£99

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 28/11

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Fri 5/12

13:05-14:40

Nonstop1h 35m

£102

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 28/11

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Fri 5/12

13:05-14:40

Nonstop1h 35m

£102

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 7/2

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Mon 23/2

16:45-18:20

Nonstop1h 35m

£106

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 2/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 3/9

09:00-14:30

1 stop5h 30m

£132

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 16/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 20/9

08:55-10:30

Nonstop1h 35m

£227

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 1/11

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 8/11

07:15-08:15

2 stops25h 00m

£309

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 28/11

10:55-12:35

Nonstop1h 40m

Southampton Eastleigh

Fri 5/12

11:40-08:25

2 stops20h 45m

£318

Flights are sorted by cheapest return flights first.

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

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 March is, on average, the cheapest month to fly to Southampton from Belfast City Airport, with most prices found around £72. If you’re not able to fly to Southampton in March, then February is your next best option. Flight prices from Belfast City Airport to Southampton during February average around £77.

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 £82. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around £135. 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 City Airport to Southampton in the evening for as low as £103. 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 £119 on average. Flights to Southampton from Belfast City Airport at midday 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 £110 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 £87 on momondo.

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

There are 1 cabin classes 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 August 2025, prices for Belfast City Airport to Southampton flights are approximately 24% 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

£83

Fastest flight time

1h 35m

Direct flights

Every day

Airports in Southampton

1 airport
The best one-way flight to Southampton from Belfast City Airport in the past 72 hours is £83. The best return flight deal from Belfast City Airport to Southampton found on momondo in the last 72 hours is £89.
The fastest flight from Belfast City Airport to Southampton takes 1h 35m
Direct flights go from Belfast City Airport to Southampton every day.
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 £65Free CancellationRating
7.1
1,228 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 £160, with the best Aer Lingus deals starting from £87 round-trip. 1,228 users have rated Aer Lingus on momondo, with an average score of 7.1/10.

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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