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Cheap flights from Belfast City Airport to Southampton from £40

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 22/5. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SOU
21 Apr — 28 Apr1
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 50 days in advance, depart on a Sunday or Tuesday and return on a Thursday

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 22 March 2026.

Sat 18/410:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Sat 25/408:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 19/3£88
Tue 21/410:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Tue 28/419:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 22/3£91
Sat 4/406:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Wed 8/419:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 20/3£101
Thu 14/506:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sat 16/508:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 18/3£106
Thu 10/910:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Sun 13/912:35
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 19/3£112
Fri 22/506:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Fri 22/519:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 20/3£125
Sun 5/406:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Tue 7/419:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 18/3£130
Thu 14/506:40
BHD
-
SOU
Nonstop1h 45m
Multiple Airlines
Sat 16/507:50
SOU
-
BHD
1 stop13h 10m
Multiple Airlines
Deal found 18/3£136
Sat 18/410:25
BHD
-
SOU
Nonstop1h 40m
Multiple Airlines
Sat 25/407:50
SOU
-
BHD
1 stop13h 10m
Multiple Airlines
Deal found 19/3£137
Mon 29/606:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sun 5/708:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 19/3£139
Sat 4/406:40
BHD
-
SOU
Nonstop1h 45m
Multiple Airlines
Wed 8/412:30
SOU
-
BHD
1 stop5h 20m
Multiple Airlines
Deal found 20/3£140
Fri 28/806:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Sun 6/908:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 21/3£144

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 22 March 2026.

Round-trip from

£88

One-way from

£40

Popular in

July

Cheapest in

March

Average price

£104

Good round-trip deal

£129 or less
Aer Lingus
  • Aer Lingus
  • 18/4-25/4
  • Nonstop
  • 3h 20m total
  • Belfast to Southampton
Search Deals
Aer Lingus
  • Aer Lingus
  • 22/5
  • Nonstop
  • 1h 45m total
  • Belfast to Southampton
Search Deals
Highest demand for flights based on searches. 23% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip 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 22 March 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

Fri 4/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 13/9

12:35-14:10

Nonstop1h 35m

£144

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 21/4

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Tue 28/4

17:20-16:00

3 stops22h 40m

£229

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 4/9

17:25-19:00

Nonstop1h 35m

Southampton Eastleigh

Sun 13/9

08:55-10:35

Nonstop1h 40m

£231

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 27/4

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Wed 29/4

19:30-21:05

Nonstop1h 35m

£232

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 21/4

10:25-12:05

Nonstop1h 40m

Southampton Eastleigh

Thu 23/4

19:30-21:05

Nonstop1h 35m

£232
Fastest return journey

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 17/8

17:25-19:00

Nonstop1h 35m

Southampton Eastleigh

Thu 20/8

19:30-21:05

Nonstop1h 35m

£232

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 4/9

09:50-16:50

1 stop7h 00m

Southampton Eastleigh

Sun 13/9

09:15-16:55

1 stop7h 40m

£254

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 23/4

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 25/4

06:50-08:55

2 stops26h 05m

£306
Cheapest one-way

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 22/5

06:40-08:25

Nonstop1h 45m

£40

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 23/5

06:40-08:25

Nonstop1h 45m

£40

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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?

Use this chart to determine the optimal time to book a return flight from Belfast City to Southampton. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Belfast City Airport to Southampton, you should look to book at least 50 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, January is the cheapest month in which you can book a flight from Belfast City Airport to Southampton (average of £30). Flying from Belfast City Airport to Southampton in August is currently the most expensive (average of £66). 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 22 March 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.

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 22 March 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
7.2
Good
1,481 reviews
Check prices

Boarding

7.4

Comfort

7.1

Entertainment

7.0

Overall

7.2

Crew

8.1

Food

6.6

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
7.2
Good
1,481 reviews
Aer Lingus
7.2
Good
1,481 reviews
Check prices

Boarding

7.4

Comfort

7.1

Entertainment

7.0

Overall

7.2

Crew

8.1

Food

6.6

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 3 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 (£86), offers the cheapest pricing from Belfast City Airport to Southampton. Users have found that Aer Lingus is 37% 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 (72%), Emerald Airlines (72%) or British Airways (72%) 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 £145, our data shows the cheapest flight currently is £96. When looking at the most popular route, (Belfast City - Southampton Eastleigh), you can expect to pay £101 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, January is the cheapest month in which you can book a flight from Belfast City Airport to Southampton (average of £30). Flying from Belfast City Airport to Southampton in August is currently the most expensive (average of £66). 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 22 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£86Average£139FlexibilityNo 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?

Cheapflights makes it easy to find Belfast City to Southampton flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast City 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 City to Southampton with no change fees?

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

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

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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