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Cheap flights from Belfast to Southampton from £52

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 13/11. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SOU
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Belfast to Southampton Eastleigh are usually found in March or January, booked 33 days in advance, depart on a Saturday or Wednesday and return on a Tuesday

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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 31 October 2025.

Mon 8/1210:10BHD - SOU
Nonstop1h 40mAer Lingus
Tue 9/1208:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 30/10£93
Mon 8/1208:15BFS - SOU
1 stop3h 10measyJet
Tue 9/1209:20SOU - BFS
1 stop7h 40measyJet
Deal found 30/10£115
Mon 8/1216:55BHD - SOU
2 stops15h 55mMultiple Airlines
Tue 9/1219:00SOU - BHD
Nonstop1h 35mMultiple Airlines
Deal found 30/10£136
Mon 22/1210:10BHD - SOU
Nonstop1h 40mAer Lingus
Sat 3/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 29/10£143
Thu 6/1116:55BHD - SOU
Nonstop1h 35mAer Lingus
Mon 10/1119:00SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 29/10£149
Mon 15/1220:50BFS - SOU
1 stop12h 00measyJet
Mon 22/1212:05SOU - BFS
1 stop19h 50measyJet
Deal found 31/10£183
Sat 13/1206:55BFS - SOU
1 stop6h 15mMultiple Airlines
Sat 20/1209:30SOU - BFS
1 stop12h 30mMultiple Airlines
Deal found 29/10£185
Mon 22/1206:30BHD - SOU
1 stop25h 40mKLM
Sat 3/109:25SOU - BHD
1 stop11h 35mKLM
Deal found 29/10£185
Mon 15/1220:50BFS - SOU
1 stop12h 00mMultiple Airlines
Mon 22/1219:55SOU - BFS
2 stops17h 50mMultiple Airlines
Deal found 31/10£188
Thu 6/1116:55BHD - SOU
Nonstop1h 35mMultiple Airlines
Mon 10/1119:55SOU - BHD
2 stops21h 25mMultiple Airlines
Deal found 29/10£191
Mon 22/1217:45BHD - SOU
1 stop15h 05mMultiple Airlines
Sat 3/108:55SOU - BHD
Nonstop1h 40mMultiple Airlines
Deal found 29/10£209
Mon 8/1207:00BFS - SOU
2 stops8h 35mMultiple Airlines
Tue 9/1209:20SOU - BFS
2 stops24h 40mMultiple Airlines
Deal found 30/10£211

Cheap 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 31 October 2025.

Round-trip from

£93

One-way from

£52

Popular in

June

Cheapest in

March

Average price

£115
Aer Lingus
  • Aer Lingus
  • 8/12-9/12
  • Nonstop
  • 3h 20m total
  • Belfast to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 13/11
  • Nonstop
  • 1h 40m total
  • Belfast to Southampton
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 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 31 October 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

BHD - SOU

BHDSOU

Belfast City

Mon 8/12

10:10-11:50

Nonstop1h 40m

Southampton Eastleigh

Tue 9/12

19:00-20:35

Nonstop1h 35m

£93

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 8/12

08:15-11:25

1 stop3h 10m

Southampton Eastleigh

Tue 9/12

09:20-17:00

1 stop7h 40m

£115

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 7/2

07:00-13:10

1 stop6h 10m

Southampton Eastleigh

Sun 15/2

18:20-17:00

1 stop22h 40m

£125

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 15/3

10:10-11:50

Nonstop1h 40m

Southampton Eastleigh

Mon 16/3

12:20-13:55

Nonstop1h 35m

£135

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 8/12

16:55-08:50

2 stops15h 55m

Southampton Eastleigh

Tue 9/12

19:00-20:35

Nonstop1h 35m

£136

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 16/3

08:15-17:15

1 stop9h 00m

Southampton Eastleigh

Tue 17/3

09:20-17:00

1 stop7h 40m

£151

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 15/3

11:30-17:45

1 stop6h 15m

Southampton Eastleigh

Mon 16/3

17:45-07:55

1 stop14h 10m

£153

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 7/2

07:00-13:10

1 stop6h 10m

Southampton Eastleigh

Sat 14/2

13:55-13:30

1 stop23h 35m

£155

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 7/2

07:15-13:10

1 stop5h 55m

Southampton Eastleigh

Sun 15/2

19:00-20:35

Nonstop1h 35m

£156

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 7/2

13:40-15:15

Nonstop1h 35m

Southampton Eastleigh

Sat 14/2

17:15-20:50

1 stop3h 35m

£181

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 25 results
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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 24 October 2025.

Booking 33 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, March 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 £48). 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 31 October 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Belfast to Southampton by exploring options for tickets in the afternoon.

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 31 October 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
1,365 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Boarding

7.4

Food

6.6

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
Aer Lingus
7.2
Good
1,365 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Boarding

7.4

Food

6.6

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.
easyJet
6.9
Okay
1,840 reviews
Aer Lingus
7.2
Good
1,365 reviews
Check prices

Comfort

7.1

Entertainment

6.9

Boarding

7.4

Food

6.6

Crew

8.0

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

LHR - DUB

The lack of headphones impacted our ability to enjoy the entertainment system provided. The fact that my last connection was associated with an "affiliated airline" that did not allow me to retrieve a check in or a boarding pass via the app almost posed a significant issue as the last leg of the flight was overbooked and we were stressed about getting a seat as a result.

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. Aer Lingus provides one of the quickest options available for as low as £93. 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 £38, 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 66% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Belfast to Southampton one-way?

    One-way options have recently been found by users for as low as £52 on Aer Lingus. Other airlines that offer cheap prices include easyJet from £118 and British Airways from £138 one-way.

  • What are the cheapest flights from Belfast to Southampton?

    While on average a flight from Belfast to Southampton is generally £116, our data shows the cheapest flight currently is £82. When looking at the most popular route, (Belfast City - Southampton Eastleigh), you can expect to pay £91 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, March 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 £48). 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

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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 31 October 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£38Average£113FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£72Average£126FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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

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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.

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