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Cheap flights from Belfast City Airport to Southampton from £42

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SOU
20 Jul — 27 Jul1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast City to Southampton Eastleigh are usually found in March or October, booked 48 days in advance, depart on a Sunday or Tuesday and return on a Saturday

Cheap flight deals from Belfast City to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Belfast City to Southampton
Explore the most affordable flight options available from Belfast City to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 June 2026.

Wed 8/706:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Wed 22/719:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 18/6£79
Wed 15/710:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Wed 22/719:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 17/6£82
Thu 16/710:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Mon 20/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 16/6£82
Sun 23/806:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sun 23/819:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 18/6£83
Fri 17/706:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sat 25/719:40
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 18/6£86
Thu 16/706:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Thu 23/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 18/6£88
Tue 15/910:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Tue 22/919:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 16/6£92
Wed 23/917:25
BHD
-
SOU
Nonstop1h 35m
Aer Lingus
Thu 24/908:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 15/6£93
Mon 20/706:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Mon 27/719:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 20/6£96
Thu 23/706:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sun 26/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 15/6£98
Mon 14/906:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Mon 14/919:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 19/6£101
Thu 2/706:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Tue 7/719:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 16/6£103

Find flight deals from Belfast City to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Belfast City (BHD) 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 20 June 2026.

Round-trip from

£79

One-way from

£42

Popular in

July

Cheapest in

March

Average price

£188

Good round-trip deal

£98 or less

Good one-way deal

£62 or less
Aer Lingus
  • Aer Lingus
  • 8/7-22/7
  • Nonstop
  • 3h 20m total
  • Belfast to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 24/7
  • Nonstop
  • 1h 45m total
  • Belfast to Southampton
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Belfast City to Southampton Eastleigh.
Search Deals
Price to beat on a one-way flight from Belfast City to Southampton Eastleigh.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast City 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 20 June 2026.
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

Cheapest return flight

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 8/7

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 22/7

19:30-21:05

Nonstop1h 35m

£79

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 2/7

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Tue 7/7

19:30-21:05

Nonstop1h 35m

£103

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 23/9

16:45-08:35

2 stops15h 50m

Southampton Eastleigh

Thu 24/9

19:30-21:05

Nonstop1h 35m

£170

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 20/7

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Mon 27/7

06:45-13:50

1 stop7h 05m

£188
Fastest return journey

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 22/11

17:25-19:00

Nonstop1h 35m

Southampton Eastleigh

Thu 26/11

12:35-14:10

Nonstop1h 35m

£232

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 17/8

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Thu 20/8

12:35-14:10

Nonstop1h 35m

£235

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 9/7

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Mon 13/7

08:55-10:35

Nonstop1h 40m

£235

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 10/7

15:30-07:20

1 stop15h 50m

Southampton Eastleigh

Mon 13/7

19:30-21:05

Nonstop1h 35m

£243

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 23/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 23/8

15:00-20:50

1 stop5h 50m

£252

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sun 5/7

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 12/7

08:55-10:35

Nonstop1h 40m

£264

Flights are sorted by cheapest return flights first.

Deals found on 17/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
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Best time to book a flight from Belfast City to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Belfast City 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 City Airport to Southampton

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

To ensure you get the cheapest price possible for a flight from Belfast City Airport to Southampton, you should look to book at least 45 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from Belfast City Airport to Southampton (average of £105). Flying from Belfast City Airport to Southampton in July is currently the most expensive (average of £224). 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 BHD to SOU?

Find hourly flight availability from Belfast City 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 20 June 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast City Airport to Southampton as you normally would.

How much does it cost for a return flight from Belfast City Airport to Southampton?

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 20 June 2026.
See what other customers who have flown with Aer Lingus from Belfast City Airport to Southampton have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,609 reviews
Check prices

Boarding

7.4

Entertainment

7.0

Overall

7.3

Crew

8.1

Food

6.7

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Aer Lingus
7.3
Good
1,609 reviews
Aer Lingus
7.3
Good
1,609 reviews
Check prices

Boarding

7.4

Entertainment

7.0

Overall

7.3

Crew

8.1

Food

6.7

Comfort

7.2

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

Related info for your journey

Find useful and relevant information for your journey from Belfast City 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 City?

    Most people fly into Southampton Eastleigh (SOU) if they book a flight to Southampton from Belfast City. On average, Eastleigh has 6 inbound flights from Belfast City per day from 1 airline. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

  • How long is the flight from Belfast City Airport to Southampton?

    Departing from Belfast City Airport to Southampton will take you 1h 35m. Airlines will cover a distance of 316 mi. Generally, flights for this route are direct.

  • What is the cheapest airline to fly from Belfast City Airport to Southampton round-trip?

    According to our current data, Aer Lingus (£90), offers the cheapest pricing from Belfast City Airport to Southampton. Users have found that Aer Lingus is 39% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Belfast City Airport to Southampton?

    No one likes to see their flight delayed. When booking a flight from Belfast City Airport to Southampton consider choosing Aer Lingus (84%), Emerald Airlines (84%) or British Airways (84%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Belfast City Airport to Southampton?

    While on average a flight from Belfast City Airport to Southampton is generally £103, our data shows the cheapest flight currently is £55. When looking at the most popular route, (Belfast City - Southampton Eastleigh), you can expect to pay £86 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast City 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 City Airport to Southampton?

    Currently, March is the cheapest month in which you can book a flight from Belfast City Airport to Southampton (average of £105). Flying from Belfast City Airport to Southampton in July is currently the most expensive (average of £224). 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

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Top airline flying from Belfast City to Southampton

Discover the top airline that operate flights from Belfast City 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 20 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£90Average£148FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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

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

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Yes! Start tracking prices for Belfast City to Southampton flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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