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Cheap flights from Northern Ireland to Southampton from £37

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — SOU
7 Jul — 14 Jul1
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 2 July 2025.

Round-trip from

£41

One-way from

£37

Popular in

June

Cheapest in

January

Average price

£85

Good round-trip deal

£69 or less

Good one-way deal

£50 or less
easyJet
  • easyJet
  • 23/8-30/8
  • Nonstop
  • 2h 35m total
  • Northern Ireland to Southampton
easyJet
  • easyJet
  • 19/7
  • Nonstop
  • 1h 15m total
  • Northern Ireland to Southampton
Highest demand for flights based on searches. 26% potential increase in price (£16 potential increase over avg. return price).
Cheapest flight prices on average. 7% potential price decrease (£3 potential savings vs. average return price).
Average for round-trip flights in July 2025
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.

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 2 July 2025.

Sat 9/806:20BFS - SOU
Nonstop1h 15measyJet
Sat 16/808:05SOU - BFS
Nonstop1h 20measyJet
Deal found 1/7£63
Mon 28/711:00BHD - SOU
Nonstop1h 40mAer Lingus
Thu 31/708:55SOU - BHD
Nonstop1h 35mAer Lingus
Deal found 1/7£92
Thu 4/906:40BHD - SOU
Nonstop1h 45mMultiple Airlines
Sat 6/908:25SOU - BHD
1 stop8h 55mMultiple Airlines
Deal found 30/6£126
Sat 23/821:05BFS - SOU
2 stops23h 55mMultiple Airlines
Sat 30/808:05SOU - BFS
Nonstop1h 20mMultiple Airlines
Deal found 30/6£177
Sat 9/806:40BHD - SOU
Nonstop1h 45mBritish Airways
Sun 10/808:55SOU - BHD
Nonstop1h 35mBritish Airways
Deal found 30/6£225
Wed 17/906:30BHD - SOU
1 stop10h 30mKLM
Thu 25/917:35SOU - BHD
1 stop3h 40mKLM
Deal found 30/6£325

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 2 July 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

Sat 23/8

06:20-07:35

Nonstop1h 15m

Southampton Eastleigh

Sat 30/8

08:05-09:25

Nonstop1h 20m

£41

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Mon 28/7

11:00-12:40

Nonstop1h 40m

Southampton Eastleigh

Thu 31/7

08:55-10:30

Nonstop1h 35m

£92

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Thu 4/9

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sat 6/9

08:25-17:20

1 stop8h 55m

£126

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 23/8

21:05-21:00

2 stops23h 55m

Southampton Eastleigh

Sat 30/8

08:05-09:25

Nonstop1h 20m

£177

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 9/8

06:40-08:25

Nonstop1h 45m

Southampton Eastleigh

Sun 10/8

08:55-10:30

Nonstop1h 35m

£225

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Wed 17/9

06:30-17:00

1 stop10h 30m

Southampton Eastleigh

Thu 25/9

17:35-21:15

1 stop3h 40m

£325

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Sat 19/7

06:20-07:35

Nonstop1h 15m

£37

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Sat 19/7

06:40-08:25

Nonstop1h 45m

£47

BelfastSouthampton

BHD - SOU

BHDSOU

Belfast City

Fri 18/7

18:40-07:55

1 stop13h 15m

£134

BelfastSouthampton

BFS - SOU

BFSSOU

Belfast Intl

Fri 18/7

18:40-08:40

2 stops14h 00m

£135

Flights are sorted by cheapest return flights first.

Deals found on 30/6

Showing 1-10 of 12 results
1
2

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 2 July 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.

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 2 July 2025.
Check out reviews from past customers who have flown with KLM, Aer Lingus, andeasyJet from Northern Ireland to Southampton to help guide your decision. 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.

Boarding

7.8

Food

7.2

Crew

8.4

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Boarding

7.8

Food

7.2

Crew

8.4

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Boarding

7.8

Food

7.2

Crew

8.4

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Boarding

7.8

Food

7.2

Crew

8.4

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Boarding

7.8

Food

7.2

Crew

8.4

Entertainment

7.1

Overall

7.8

Comfort

7.7

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

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.

  • 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 £37. However, be on the lookout for offers from Aer Lingus and Loganair, 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 £24. On average you can expect to pay £81. The most popular route, (Belfast Intl - Southampton Eastleigh), can usually be booked for £42.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 2 July 2025.
AirlineCheapestAverageFlexibilityOn-time
easyJetCheapest£37Average£91FlexibilityNo cancel feeOn-time86%
Search easyJet flights
Aer LingusCheapest£58Average£112FlexibilityNo 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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