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Cheap flights from Northern Ireland to Southampton from £16

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SOU
24 Aug — 31 Aug1
1 adult

Cheap 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 19 August 2025.

Round-trip from

£33

One-way from

£16

Popular in

June

Cheapest in

January

Average price

£97

Good round-trip deal

£75 or less

Good one-way deal

£49 or less
easyJet
  • easyJet
  • 7/9-26/9
  • Nonstop
  • 2h 35m total
  • Northern Ireland to Southampton
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easyJet
  • easyJet
  • 7/9
  • Nonstop
  • 1h 15m total
  • Northern Ireland to Southampton
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£14 potential increase over avg. return price).
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Cheapest flight prices on average. 6% potential price decrease (£3 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Northern Ireland to Southampton Eastleigh.
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Price to beat on a one-way flight from Northern Ireland to Southampton Eastleigh.
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Find flight deals from Northern Ireland to Southampton

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 19 August 2025.

Sun 7/907:00BFS - SOU
Nonstop1h 15measyJet
Fri 26/912:25SOU - BFS
Nonstop1h 20measyJet
Deal found 19/8£33
Fri 26/910:40BFS - SOU
Nonstop1h 15measyJet
Sat 27/915:20SOU - BFS
Nonstop1h 20measyJet
Deal found 17/8£44
Wed 27/806:40BHD - SOU
Nonstop1h 45mAer Lingus
Sun 7/908:55SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/8£84
Wed 5/1114:40BHD - SOU
Nonstop1h 35mAer Lingus
Wed 28/108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 19/8£85
Mon 8/910:05BFS - SOU
Nonstop1h 15measyJet
Thu 11/915:05SOU - BFS
Nonstop1h 20measyJet
Deal found 19/8£87
Sat 1/1106:40BHD - SOU
Nonstop1h 45mAer Lingus
Sat 8/1108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 18/8£89
Sat 1/1106:40BHD - SOU
Nonstop1h 45mAer Lingus
Sun 9/1108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 18/8£92
Wed 29/1006:40BHD - SOU
Nonstop1h 45mAer Lingus
Mon 10/1116:45SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 18/8£94
Wed 29/1014:40BHD - SOU
Nonstop1h 35mAer Lingus
Fri 7/1108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 18/8£95
Fri 28/1114:40BHD - SOU
Nonstop1h 35mAer Lingus
Fri 5/1216:45SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 17/8£101
Thu 30/1006:40BHD - SOU
Nonstop1h 45mAer Lingus
Thu 6/1108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 18/8£103
Sun 2/1105:40BHD - SOU
Nonstop1h 45mAer Lingus
Sun 9/1108:55SOU - BHD
Nonstop1h 40mAer Lingus
Deal found 18/8£104

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 19 August 2025.
Use the filters below to find and compare flights from Northern Ireland to Southampton that are best for you.

Fly from

Northern Ireland

Fly to

Southampton

Route

Depart

Return

Price

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sun 7/9

07:00-08:15

Nonstop1h 15m

Southampton Eastleigh

Fri 26/9

12:25-13:45

Nonstop1h 20m

£33

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Fri 26/9

10:40-11:55

Nonstop1h 15m

Southampton Eastleigh

Sat 27/9

15:20-16:40

Nonstop1h 20m

£44

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 27/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 7/9

08:55-10:30

Nonstop1h 35m

£84

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 5/11

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Wed 28/1

08:55-10:35

Nonstop1h 40m

£85

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Mon 8/9

10:05-11:20

Nonstop1h 15m

Southampton Eastleigh

Thu 11/9

15:05-16:25

Nonstop1h 20m

£87

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 1/11

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 8/11

08:55-10:35

Nonstop1h 40m

£89

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 1/11

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 9/11

08:55-10:35

Nonstop1h 40m

£92

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 4/11

16:55-18:30

Nonstop1h 35m

Southampton Eastleigh

Thu 6/11

08:55-10:35

Nonstop1h 40m

£94

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 29/10

14:40-16:15

Nonstop1h 35m

Southampton Eastleigh

Wed 5/11

08:55-10:35

Nonstop1h 40m

£94

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Tue 4/11

16:55-18:30

Nonstop1h 35m

Southampton Eastleigh

Sat 8/11

08:55-10:35

Nonstop1h 40m

£94

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 38 results
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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

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

Currently, September is the cheapest month in which you can book a flight from Northern Ireland to Southampton (average of £203). Flying from Northern Ireland to Southampton in November is currently the most expensive (average of £262). 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 19 August 2025.

When flying from Northern Ireland to Southampton, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 flights from Northern Ireland to Southampton?

    The cheapest flight price from Northern Ireland to Southampton is £15. On average you can expect to pay £113. The most popular route, (Belfast Intl - Southampton Eastleigh), can usually be booked for £44.

  • 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, September is the cheapest month in which you can book a flight from Northern Ireland to Southampton (average of £203). Flying from Northern Ireland to Southampton in November is currently the most expensive (average of £262). 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.
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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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£40Average£102FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£64Average£117FlexibilityNo 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 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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