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Cheap flights from Southampton to Northern Ireland from £31

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
SOU — BFS
7 Feb — 14 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Southampton to Northern Ireland

Keep the following information in mind while searching for Southampton to Northern Ireland flight deals. Data was last updated 8 January 2026.

Round-trip from

£56

One-way from

£31

Popular in

July

Cheapest in

January

Average price

£42

Good round-trip deal

£55 or less

Good one-way deal

£57 or less
easyJet
  • easyJet
  • 24/4-27/4
  • Nonstop
  • 2h 30m total
  • Southampton to Northern Ireland
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easyJet
  • easyJet
  • 30/5
  • Nonstop
  • 1h 15m total
  • Southampton to Northern Ireland
Search Deals
Highest demand for flights based on searches. 27% potential increase in price (£18 potential increase over avg. return price).
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Cheapest flight prices on average. 8% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Southampton Eastleigh to Northern Ireland.
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Price to beat on a one-way flight from Southampton Eastleigh to Northern Ireland.
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Find flight deals from Southampton to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Southampton to Northern Ireland
Explore the most affordable flight options available from Southampton to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 January 2026.

Fri 24/412:20SOU - BFS
Nonstop1h 15measyJet
Mon 27/410:35BFS - SOU
Nonstop1h 15measyJet
Deal found 6/1£56
Thu 26/317:55SOU - BFS
1 stop25h 40measyJet
Sun 29/310:50BFS - SOU
Nonstop1h 15measyJet
Deal found 6/1£77
Sun 1/319:00SOU - BHD
Nonstop1h 35mAer Lingus
Mon 2/316:55BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 6/1£85
Fri 10/412:20SOU - BFS
Nonstop1h 15measyJet
Mon 13/410:35BFS - SOU
Nonstop1h 15measyJet
Deal found 7/1£86
Sat 7/308:55SOU - BHD
Nonstop1h 40mAer Lingus
Sun 8/310:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 6/1£87
Fri 27/219:00SOU - BHD
Nonstop1h 35mAer Lingus
Sun 8/310:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 5/1£93
Fri 27/317:45SOU - BFS
1 stop13h 40measyJet
Sun 29/310:50BFS - SOU
Nonstop1h 15measyJet
Deal found 6/1£94
Thu 26/312:20SOU - BHD
Nonstop1h 35mAer Lingus
Sun 29/310:20BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 7/1£96
Fri 6/319:00SOU - BHD
Nonstop1h 35mAer Lingus
Sun 8/310:10BHD - SOU
Nonstop1h 40mAer Lingus
Deal found 6/1£99
Mon 9/317:45SOU - BFS
1 stop18h 15measyJet
Sat 14/307:00BFS - SOU
1 stop6h 10measyJet
Deal found 6/1£104
Thu 23/409:25SOU - BFS
1 stop7h 10measyJet
Sun 26/410:50BFS - SOU
Nonstop1h 15measyJet
Deal found 6/1£105
Mon 9/319:00SOU - BHD
Nonstop1h 35mAer Lingus
Sat 14/313:40BHD - SOU
Nonstop1h 35mAer Lingus
Deal found 6/1£109

Cheapflights Fare Finder

 
Customise your flight search to find flights from Southampton to Northern Ireland 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 8 January 2026.
Use the filters below to find and compare flights from Southampton to Northern Ireland that are best for you.

Fly from

Southampton

Fly to

Northern Ireland

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 24/4

12:20-13:35

Nonstop1h 15m

Belfast Intl

Mon 27/4

10:35-11:50

Nonstop1h 15m

£56

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 26/3

17:55-19:35

1 stop25h 40m

Belfast Intl

Sun 29/3

10:50-12:05

Nonstop1h 15m

£77

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 1/3

19:00-20:35

Nonstop1h 35m

Belfast City

Mon 2/3

16:55-18:30

Nonstop1h 35m

£85

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 10/4

12:20-13:35

Nonstop1h 15m

Belfast Intl

Mon 13/4

10:35-11:50

Nonstop1h 15m

£86

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Fri 24/4

08:55-10:35

Nonstop1h 40m

Belfast City

Mon 27/4

06:40-08:25

Nonstop1h 45m

£88

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Fri 27/2

19:00-20:35

Nonstop1h 35m

Belfast City

Sun 8/3

10:10-11:50

Nonstop1h 40m

£93

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Thu 26/3

19:00-20:35

Nonstop1h 35m

Belfast City

Sun 29/3

10:20-12:00

Nonstop1h 40m

£96

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Mon 9/3

17:45-12:00

1 stop18h 15m

Belfast Intl

Sat 14/3

07:00-13:10

1 stop6h 10m

£104

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Mon 2/2

17:45-07:55

1 stop14h 10m

Belfast Intl

Wed 4/2

20:40-17:20

1 stop20h 40m

£111

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 26/3

12:00-16:10

1 stop4h 10m

Belfast Intl

Sun 29/3

10:50-12:05

Nonstop1h 15m

£118

Flights are sorted by cheapest return flights first.

Deals found on 6/1

Showing 1-10 of 35 results
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Best time to book a flight from Southampton to Northern Ireland

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

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

Currently, November is the cheapest month in which you can book a flight from Southampton to Northern Ireland (average of £15). Flying from Southampton to Northern Ireland in August is currently the most expensive (average of £39). 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 SOU to NIR?

Find hourly flight availability from Southampton to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 January 2026.

When flying from Southampton to Northern Ireland, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 12% versus a flight in the morning.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 8 January 2026.
Read through reviews of airlines operating flights from Southampton to Northern Ireland, such as Aer Lingus and easyJet. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,425 reviews
Check prices

Overall

7.2

Food

6.6

Crew

8.0

Comfort

7.1

Boarding

7.4

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

MAN - DUB

They did not list a gate until it was time to board.
Aer Lingus
7.2
Good
1,425 reviews
Aer Lingus
7.2
Good
1,425 reviews
Check prices

Overall

7.2

Food

6.6

Crew

8.0

Comfort

7.1

Boarding

7.4

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

MAN - DUB

They did not list a gate until it was time to board.
easyJet
6.9
Okay
1,859 reviews
Aer Lingus
7.2
Good
1,425 reviews
Check prices

Overall

7.2

Food

6.6

Crew

8.0

Comfort

7.1

Boarding

7.4

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Anonymous,Dec 2025

MAN - DUB

They did not list a gate until it was time to board.

Related info for your journey

Find useful and relevant information for your journey from Southampton to Northern Ireland. 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 from for flights from Southampton to Northern Ireland?

    Most people fly from Southampton Eastleigh (SOU) if they book a flight from Southampton to Northern Ireland. Southampton Eastleigh is conveniently located just 3.5 mi from Southampton’s city center.

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

    There are many flights that can get you from Southampton to Northern Ireland in 1h 15m. Fly via easyJet or Aer Lingus to get the fastest option. Southampton and Northern Ireland are separated by a distance of 326 mi. Generally, flights for this route are direct.

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

    On average you can expect to pay £67 for a flight from Southampton to Northern Ireland. The cheapest flight overall is £54 while the most popular route, (Southampton Eastleigh - Belfast Intl) is currently priced at £56.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Southampton to Northern Ireland (average of £15). Flying from Southampton to Northern Ireland in August is currently the most expensive (average of £39). 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 Southampton to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Southampton to Northern Ireland

Discover the top 2 airlines that operate flights from Southampton to Northern Ireland. 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 8 January 2026.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£34Average£74FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£63Average£114FlexibilityNo 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 Southampton to Northern Ireland?

Cheapflights helps you search for flights from Southampton to Northern Ireland via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights helps you find that perfect flight to Northern Ireland from Southampton by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Certainly. Search results for flights to Northern Ireland from Southampton shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Northern Ireland from Southampton today and book when prices fit your budget.

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