Cheap flights from Northern Ireland to Southampton from £32

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 17/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SOU
8 Jun — 15 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Southampton

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Southampton
Explore the most affordable flight options available from Northern Ireland to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 May 2026.

Mon 1/610:35
BFS
-
SOU
Nonstop1h 15m
easyJet
Sat 13/612:15
SOU
-
BFS
Nonstop1h 15m
easyJet
Deal found 6/5£58
Sat 3/1010:30
BFS
-
SOU
Nonstop1h 15m
easyJet
Mon 5/1012:25
SOU
-
BFS
Nonstop1h 15m
easyJet
Deal found 4/5£75
Sat 6/610:30
BFS
-
SOU
Nonstop1h 15m
easyJet
Mon 8/612:25
SOU
-
BFS
Nonstop1h 15m
easyJet
Deal found 8/5£76
Sat 16/510:25
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Thu 4/612:35
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 6/5£82
Sat 13/610:30
BFS
-
SOU
Nonstop1h 15m
easyJet
Mon 15/612:25
SOU
-
BFS
Nonstop1h 15m
easyJet
Deal found 6/5£84
Sun 24/506:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Thu 28/508:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 6/5£86
Mon 15/610:35
BFS
-
SOU
Nonstop1h 15m
easyJet
Fri 19/612:20
SOU
-
BFS
Nonstop1h 15m
easyJet
Deal found 6/5£87
Tue 26/506:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Wed 27/512:35
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 6/5£88
Sat 16/517:30
BHD
-
SOU
Nonstop1h 40m
Aer Lingus
Sun 17/508:55
SOU
-
BHD
Nonstop1h 40m
Aer Lingus
Deal found 7/5£89
Sun 30/810:50
BFS
-
SOU
Nonstop1h 15m
easyJet
Mon 7/912:25
SOU
-
BFS
Nonstop1h 15m
easyJet
Deal found 7/5£90
Sat 23/506:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Wed 27/512:35
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 8/5£91
Fri 15/506:40
BHD
-
SOU
Nonstop1h 45m
Aer Lingus
Tue 19/519:30
SOU
-
BHD
Nonstop1h 35m
Aer Lingus
Deal found 7/5£92

Find flight deals from Northern Ireland to Southampton

Keep the following information in mind while searching for Northern Ireland to Southampton flight deals. Data was last updated 9 May 2026.

Round-trip from

£58

One-way from

£32

Popular in

June

Cheapest in

November

Average price

£62

Good round-trip deal

£82 or less

Good one-way deal

£30 or less
easyJet
  • easyJet
  • 1/6-13/6
  • Nonstop
  • 2h 30m total
  • Northern Ireland to Southampton
easyJet
  • easyJet
  • 17/5
  • Nonstop
  • 1h 15m total
  • Northern Ireland to Southampton
Highest demand for flights based on searches. 20% potential increase in price (£13 potential increase over avg. return price).
Cheapest flight prices on average. 6% potential price decrease (£3 potential savings vs. average return price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from Northern Ireland to Southampton Eastleigh.
Price to beat on a one-way flight from Northern Ireland to Southampton Eastleigh.

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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 9 May 2026.
Use the filters below to find and compare flights from Northern Ireland to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 1/6

10:35-11:50

Nonstop1h 15m

Southampton Eastleigh

Sat 13/6

12:15-13:30

Nonstop1h 15m

£66

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 6/6

10:30-11:45

Nonstop1h 15m

Southampton Eastleigh

Mon 8/6

12:25-13:40

Nonstop1h 15m

£78

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 24/5

10:50-12:05

Nonstop1h 15m

Southampton Eastleigh

Thu 28/5

11:40-17:05

1 stop5h 25m

£96

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Fri 7/8

10:35-11:50

Nonstop1h 15m

Southampton Eastleigh

Mon 10/8

12:25-13:40

Nonstop1h 15m

£104

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Fri 2/10

10:35-11:50

Nonstop1h 15m

Southampton Eastleigh

Mon 5/10

12:25-13:40

Nonstop1h 15m

£107

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 1/6

21:55-19:30

2 stops21h 35m

Southampton Eastleigh

Sat 13/6

12:15-13:30

Nonstop1h 15m

£110

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 29/8

10:30-11:45

Nonstop1h 15m

Southampton Eastleigh

Sat 5/9

07:50-08:55

1 stop25h 05m

£114

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 12/9

10:30-11:45

Nonstop1h 15m

Southampton Eastleigh

Sat 26/9

12:15-13:30

Nonstop1h 15m

£115

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 31/8

10:35-11:50

Nonstop1h 15m

Southampton Eastleigh

Sat 5/9

12:15-13:30

Nonstop1h 15m

£118

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 5/6

14:25-20:45

1 stop6h 20m

Southampton Eastleigh

Sun 7/6

08:55-10:35

Nonstop1h 40m

£187

Flights are sorted by cheapest return flights first.

Deals found on 7/5

Showing 1-10 of 31 resultsSorted by cheapest first
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Best time to book a flight from Northern Ireland to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Northern Ireland 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 Northern Ireland to Southampton

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

The best time to book flights from Northern Ireland to Southampton is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, December is the cheapest month in which you can book a flight from Northern Ireland to Southampton (average of £20). Flying from Northern Ireland to Southampton in November is currently the most expensive (average of £83). 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 NIR to SOU?

Find hourly flight availability from Northern Ireland 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 9 May 2026.

It’s typically best to fly out from Northern Ireland to Southampton at midday. Doing so could potentially save you 43% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight from Northern Ireland to Southampton?

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland 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 Northern Ireland?

    Southampton Eastleigh (SOU), located 3.5 mi from the city center, is the airport you fly into when you book flights from Northern Ireland to Southampton.

  • How long is the flight from Northern Ireland to Southampton?

    Departing from Northern Ireland to Southampton will take you 1h 15m. The distance from Northern Ireland to Southampton is about 326 mi. All flights are typically direct.

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

    The cheapest airline one-way is easyJet, with whom users have recently found tickets for as low as £25. However, be on the lookout for offers from Aer Lingus and British Airways, as they are both options that can get you from Northern Ireland to Southampton for a low price.

  • What are the cheapest flights from Northern Ireland to Southampton?

    The cheapest flight price from Northern Ireland to Southampton is £26. On average you can expect to pay £95. The most popular route, (Belfast Intl - Southampton Eastleigh), can usually be booked for £66.

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

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

  • How can I find direct flights from Northern Ireland to Southampton?

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland 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 Northern Ireland to Southampton?

    Currently, December is the cheapest month in which you can book a flight from Northern Ireland to Southampton (average of £20). Flying from Northern Ireland to Southampton in November is currently the most expensive (average of £83). 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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Alternative routes for Northern Ireland to Southampton

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Northern Ireland to Southampton

Discover the top 2 airlines that operate flights from Northern Ireland 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 9 May 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£39Average£100FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£79Average£133FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Northern Ireland to Southampton?

Deals for Northern Ireland to Southampton flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to Southampton.

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

Need flexible booking options for your flight to Southampton from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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