Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Belfast to Southampton from £23

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SOU
22 Jan — 29 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Belfast to Southampton Eastleigh are usually found in March or April, booked 76 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

Cheap flight deals from Belfast to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Southampton
Explore the most affordable flight options available from Belfast to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 December 2025.

Tue 30/1217:35BFS - SOU
1 stop15h 15measyJet
Fri 2/117:45SOU - BFS
1 stop13h 40measyJet
Deal found 21/12£209
Tue 30/1217:55BHD - SOU
2 stops14h 55mMultiple Airlines
Fri 2/119:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 21/12£287
Sat 27/1206:40BHD - SOU
Nonstop1h 45mAer Lingus
Mon 29/1219:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 22/12£294
Tue 30/1206:40BHD - SOU
Nonstop1h 45mAer Lingus
Fri 2/119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 21/12£302
Sat 27/1205:55BFS - SOU
1 stop8h 50mMultiple Airlines
Mon 29/1208:30SOU - BFS
2 stops15h 55mMultiple Airlines
Deal found 22/12£322
Sat 27/1217:20BHD - SOU
1 stop24h 05mKLM
Mon 29/1218:05SOU - BHD
1 stop22h 45mKLM
Deal found 22/12£324
Sat 27/1207:15BHD - SOU
1 stop5h 55mMultiple Airlines
Mon 29/1219:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 22/12£329
Tue 30/1209:20BFS - SOU
2 stops23h 30mMultiple Airlines
Fri 2/119:40SOU - BFS
1 stop3h 05mMultiple Airlines
Deal found 21/12£335
Sat 27/1206:55BFS - SOU
1 stop6h 15measyJet
Mon 29/1212:05SOU - BFS
1 stop8h 15measyJet
Deal found 22/12£340

Find flight deals from Belfast to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 December 2025.

Round-trip from

£91

One-way from

£23

Popular in

June

Cheapest in

March

Average price

£150
easyJet
  • easyJet
  • 15/1-18/1
  • 2 total stops
  • 29h 45m total
  • Belfast to Southampton
Search Deals
easyJet
  • easyJet
  • 29/3
  • Nonstop
  • 1h 15m total
  • Belfast to Southampton
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 23 December 2025.
Use the filters below to find and compare flights from Belfast to Southampton that are best for you.

Fly from

Belfast

Fly to

Southampton

Route

Depart

Return

Price

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Thu 15/1

13:35-17:20

1 stop3h 45m

Southampton Eastleigh

Sun 18/1

18:20-20:20

1 stop26h 00m

£91

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 5/2

10:10-11:50

Nonstop1h 40m

Southampton Eastleigh

Thu 12/2

19:00-20:35

Nonstop1h 35m

£91

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Thu 5/2

13:35-17:20

1 stop3h 45m

Southampton Eastleigh

Thu 12/2

17:55-19:35

1 stop25h 40m

£127

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 30/3

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Sun 5/4

08:55-10:35

Nonstop1h 40m

£144

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 5/2

20:00-19:20

2 stops23h 20m

Southampton Eastleigh

Thu 12/2

19:00-20:35

Nonstop1h 35m

£146

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Thu 5/2

13:35-17:20

1 stop3h 45m

Southampton Eastleigh

Thu 12/2

20:10-10:30

2 stops14h 20m

£166

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 30/3

07:15-12:25

1 stop5h 10m

Southampton Eastleigh

Sun 5/4

08:55-10:35

Nonstop1h 40m

£167

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Tue 13/1

06:30-17:30

1 stop11h 00m

Southampton Eastleigh

Tue 20/1

15:00-20:15

1 stop5h 15m

£188

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Wed 4/2

19:55-17:20

2 stops21h 25m

Southampton Eastleigh

Wed 11/2

16:05-09:20

2 stops17h 15m

£189

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 20/2

10:10-11:50

Nonstop1h 40m

Southampton Eastleigh

Tue 24/2

08:55-10:35

Nonstop1h 40m

£229

Flights are sorted by cheapest return flights first.

Deals found on 21/12

Showing 1-10 of 28 results
1
2
3

Best time to book a flight from Belfast to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Belfast with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Southampton

How far ahead should I book a flight from Belfast to Southampton?

Use this chart to determine the optimal time to book a return flight from Belfast to Southampton. Price data was last updated on 19 December 2025.

Booking 76 days in advance of your planned departure date is, on average, the best time to get cheap flights from Belfast to Southampton. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Belfast to Southampton?

Currently, February is the cheapest month in which you can book a flight from Belfast to Southampton (average of £14). Flying from Belfast to Southampton in July is currently the most expensive (average of £47). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BFS to SOU?

Find hourly flight availability from Belfast to Southampton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 23 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 30% on flights from Belfast to Southampton by exploring options for tickets in the morning.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated 23 December 2025.
Read through reviews of airlines operating flights from Belfast to Southampton, such as Aer Lingus and easyJet. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,412 reviews
Check prices

Entertainment

6.9

Overall

7.2

Food

6.6

Comfort

7.1

Boarding

7.4

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

MAN - DUB

They did not list a gate until it was time to board.
Aer Lingus
7.2
Good
1,412 reviews
Aer Lingus
7.2
Good
1,412 reviews
Check prices

Entertainment

6.9

Overall

7.2

Food

6.6

Comfort

7.1

Boarding

7.4

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

MAN - DUB

They did not list a gate until it was time to board.
easyJet
6.9
Okay
1,853 reviews
Aer Lingus
7.2
Good
1,412 reviews
Check prices

Entertainment

6.9

Overall

7.2

Food

6.6

Comfort

7.1

Boarding

7.4

Crew

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

MAN - DUB

They did not list a gate until it was time to board.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Southampton from Belfast?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly into when you book flights from Belfast to Southampton. 2 airlines have flights to Eastleigh from Belfast on a regular basis. Booking flights from Belfast to Southampton Eastleigh should not be difficult; the airport handles an average of 0 inbound flights from Belfast per day.

  • How long is the flight from Belfast to Southampton?

    A quick flight from Belfast to Southampton can take about 1h 40m. easyJet provides one of the quickest options available for as low as £91. There are 316 mi between Belfast and Southampton. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Belfast to Southampton round-trip?

    Currently priced at £25, easyJet will fly you from Belfast to Southampton and back. In addition to easyJet, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Aer Lingus for as low as £71. easyJet is priced at 79% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Belfast to Southampton?

    While on average a flight from Belfast to Southampton is generally £80, our data shows the cheapest flight currently is £29. When looking at the most popular route, (Belfast Intl - Southampton Eastleigh), you can expect to pay £46 for that flight.

  • Can I find deals for flights from Belfast to Southampton that include hotel bookings?

    Yes. In addition to deals on Belfast to Southampton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to Southampton.

  • Can I find deals for business class flights from Belfast to Southampton?

    Yes. Cheapflights offers flight deals from Belfast to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Belfast to Southampton?

    Currently, February is the cheapest month in which you can book a flight from Belfast to Southampton (average of £14). Flying from Belfast to Southampton in July is currently the most expensive (average of £47). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to Gatwick flights
Belfast Intl to Luton flights
Belfast Intl to Stansted flights
Belfast City to Heathrow flights
Belfast City to Gatwick flights
Belfast Intl to Heathrow flights
Belfast City to London City flights
Belfast City to Luton flights
Belfast Intl to Edinburgh flights
Belfast Intl to London City flights
Belfast Intl to Manchester flights
Belfast City to Edinburgh flights
Belfast City to Manchester flights
Belfast City to Stansted flights
Belfast Intl to Birmingham flights
Belfast Intl to Liverpool flights
Belfast Intl to Newcastle upon Tyne flights
Belfast City to Newcastle upon Tyne flights
Belfast City to Birmingham flights
Belfast Intl to Bristol flights
Belfast City to Liverpool flights
Belfast Intl to Leeds flights
Belfast City to Bristol flights
Belfast City to Southampton flights
Belfast Intl to Southampton flights
Derry to Heathrow flights
Belfast City to Leeds flights
Belfast Intl to East Midlands flights
Belfast City to East Midlands flights
Belfast Intl to Exeter flights
Derry to Stansted flights
Belfast City to Exeter flights
Belfast Intl to Southend flights
Derry to Liverpool flights
Belfast City to Doncaster flights
Belfast Intl to Doncaster flights
Belfast City to Southend flights

Top 2 airlines flying from Belfast to Southampton

Discover the top 2 airlines that operate flights from Belfast to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 December 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£40Average£112FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£72Average£130FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Southampton?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Southampton from Belfast today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast to Southampton?

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to Southampton for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Belfast to Southampton with no change fees?

Yes! Cheapflights helps users easily find flights from Belfast to Southampton with no change fees.

Can Cheapflights notify me if prices for flights from Belfast to Southampton become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southampton from Belfast today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.