Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Belfast to Southampton from £22

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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SOU
11 Jan — 18 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 12 December 2025.

Tue 30/1208:35BFS - SOU
1 stop24h 15measyJet
Thu 1/117:55SOU - BFS
1 stop25h 40measyJet
Deal found 10/12£176
Tue 30/1208:35BFS - SOU
1 stop24h 15measyJet
Fri 2/117:45SOU - BFS
1 stop13h 40measyJet
Deal found 10/12£187
Wed 24/1207:55BFS - SOU
1 stop3h 00mMultiple Airlines
Wed 31/1216:05SOU - BFS
2 stops16h 20mMultiple Airlines
Deal found 11/12£196
Fri 26/1211:45BFS - SOU
1 stop5h 25measyJet
Tue 30/1209:20SOU - BFS
1 stop7h 40measyJet
Deal found 11/12£208
Fri 26/1210:35BFS - SOU
1 stop6h 35mMultiple Airlines
Tue 30/1220:10SOU - BFS
2 stops22h 55mMultiple Airlines
Deal found 11/12£220
Sat 13/1206:55BFS - SOU
1 stop6h 15mMultiple Airlines
Wed 17/1212:25SOU - BFS
2 stops20h 05mMultiple Airlines
Deal found 10/12£232
Fri 12/1217:35BFS - SOU
1 stop19h 35mMultiple Airlines
Fri 19/1208:10SOU - BFS
1 stop23h 55mMultiple Airlines
Deal found 11/12£238
Tue 23/1206:40BHD - SOU
Nonstop1h 45mMultiple Airlines
Tue 23/1214:45SOU - BHD
1 stop6h 05mMultiple Airlines
Deal found 11/12£240
Tue 30/1206:40BHD - SOU
Nonstop1h 45mAer Lingus
Thu 1/112:20SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 10/12£243
Mon 29/1217:45BHD - SOU
1 stop15h 05measyJet
Wed 31/1209:25SOU - BHD
1 stop7h 50measyJet
Deal found 11/12£248
Mon 29/1208:00BHD - SOU
1 stop9h 35mMultiple Airlines
Wed 31/1208:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Deal found 11/12£262
Tue 30/1209:50BHD - SOU
2 stops23h 00mMultiple Airlines
Fri 2/119:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 10/12£267

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 12 December 2025.

Round-trip from

£89

One-way from

£22

Popular in

June

Cheapest in

March

Average price

£146
easyJet
  • easyJet
  • 12/1-19/1
  • 2 total stops
  • 11h 25m total
  • Belfast to Southampton
Search Deals
easyJet
  • easyJet
  • 20/4
  • Nonstop
  • 1h 15m total
  • Belfast to Southampton
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£17 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 12 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

Mon 12/1

08:15-11:25

1 stop3h 10m

Southampton Eastleigh

Mon 19/1

12:05-20:20

1 stop8h 15m

£89

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 7/1

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 14/1

08:55-10:35

Nonstop1h 40m

£90

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 7/1

18:05-17:20

2 stops23h 15m

Southampton Eastleigh

Wed 14/1

08:55-10:35

Nonstop1h 40m

£136

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 23/1

10:10-11:50

Nonstop1h 40m

Southampton Eastleigh

Fri 23/1

19:00-20:35

Nonstop1h 35m

£136

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 12/1

08:15-11:25

1 stop3h 10m

Southampton Eastleigh

Mon 19/1

08:30-09:05

2 stops24h 35m

£146

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Tue 30/12

08:35-08:50

1 stop24h 15m

Southampton Eastleigh

Thu 1/1

17:55-19:35

1 stop25h 40m

£176

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Wed 7/1

19:15-17:20

2 stops22h 05m

Southampton Eastleigh

Wed 14/1

12:25-09:20

2 stops20h 55m

£181

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Wed 29/4

07:35-12:00

1 stop4h 25m

Southampton Eastleigh

Wed 6/5

18:20-21:20

1 stop3h 00m

£184

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Tue 30/12

08:35-08:50

1 stop24h 15m

Southampton Eastleigh

Fri 2/1

17:45-07:25

1 stop13h 40m

£187

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 29/4

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 6/5

12:35-17:20

1 stop4h 45m

£195

Flights are sorted by cheapest return flights first.

Deals found on 11/12

Showing 1-10 of 29 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 5 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 12 December 2025.

Unlike at midday, when flights are generally more expensive, you can save up to 29% 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 12 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
1,394 reviews
Check prices

Entertainment

7.0

Overall

7.2

Comfort

7.1

Boarding

7.4

Crew

8.0

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,394 reviews
Aer Lingus
7.2
Good
1,394 reviews
Check prices

Entertainment

7.0

Overall

7.2

Comfort

7.1

Boarding

7.4

Crew

8.0

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
easyJet
6.9
Okay
1,850 reviews
Aer Lingus
7.2
Good
1,394 reviews
Check prices

Entertainment

7.0

Overall

7.2

Comfort

7.1

Boarding

7.4

Crew

8.0

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

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 45m. easyJet provides one of the quickest options available for as low as £90. 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 £72. easyJet is priced at 79% lower than the current average price of a flight leaving 3 months from now.

  • 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 Luton flights
Belfast Intl to Gatwick flights
Belfast Intl to Stansted flights
Belfast City to Heathrow flights
Belfast City to Luton flights
Belfast City to Gatwick flights
Belfast Intl to Heathrow flights
Belfast Intl to Edinburgh flights
Belfast City to London City flights
Belfast Intl to London City flights
Belfast Intl to Manchester flights
Belfast City to Stansted flights
Belfast City to Edinburgh flights
Belfast Intl to Liverpool flights
Belfast Intl to Southampton flights
Belfast Intl to Bristol flights
Belfast Intl to Birmingham flights
Belfast City to Manchester flights
Belfast City to Southampton flights
Belfast City to Liverpool flights
Belfast Intl to Newcastle upon Tyne flights
Belfast City to Birmingham flights
Belfast City to Bristol flights
Belfast Intl to Southend flights
Belfast Intl to Leeds flights
Belfast City to Leeds flights
Belfast City to Newcastle upon Tyne flights
Derry to Heathrow flights
Belfast Intl to Exeter flights
Belfast City to Exeter flights
Derry to Stansted flights
Belfast City to East Midlands flights
Derry to Liverpool flights
Belfast City to Southend flights
Belfast Intl to East Midlands flights
Belfast City to Doncaster flights
Belfast Intl to Doncaster 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£38Average£113FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£72Average£129FlexibilityNo 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.