Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Southampton to Northern Ireland from £25

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to Northern Ireland departing on 26/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Southampton to Northern Ireland

Cheap return flights

easyJet Logo
12:15 - 13:35SOU-BFS
1h 20mdirect
easyJet Logo
10:10 - 11:25BFS-SOU
1h 15mdirect
£63easyJet
Find Deal
Fri, 17 Oct - Sun, 19 Oct
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£73Aer Lingus
Find Deal
Sat, 8 Nov - Sat, 15 Nov
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50BHD-SOU
1h 40mdirect
£78Aer Lingus
Find Deal
Mon, 24 Nov - Thu, 27 Nov
easyJet Logo
12:25 - 13:45SOU-BFS
1h 20mdirect
easyJet Logo
10:05 - 11:20BFS-SOU
1h 15mdirect
£79easyJet
Find Deal
Fri, 26 Sep - Mon, 29 Sep
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£79Aer Lingus
Find Deal
Sat, 8 Nov - Sat, 15 Nov
easyJet Logo
15:05 - 16:25SOU-BFS
1h 20mdirect
easyJet Logo
10:30 - 11:45BFS-SOU
1h 15mdirect
£80easyJet
Find Deal
Thu, 9 Oct - Fri, 10 Oct
Aer Lingus Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£81Aer Lingus
Find Deal
Sun, 28 Sep - Sat, 4 Oct
Aer Lingus Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£81Aer Lingus
Find Deal
Sun, 28 Sep - Sat, 4 Oct
KLM Logo
09:25 - 21:00SOU-BHD
11h 35m1 stop
KLM Logo
17:20 - 08:05BHD-SOU
14h 45m1 stop
£221KLM
Find Deal
Sat, 22 Nov - Thu, 27 Nov
British Airways Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
British Airways Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
£225British Airways
Find Deal
Sun, 23 Nov - Fri, 28 Nov

easyJet flights from Southampton to Northern Ireland

Our best easyJet deals on Southampton to Northern Ireland flight tickets
easyJet
17 Oct
SOU12:15Southampton Eastleigh
1h 20m
BFS13:35Belfast Intl
19 Oct
BFS10:10Belfast Intl
1h 15m
SOU11:25Southampton Eastleigh
£63
Find similar
easyJet
26 Sept
SOU12:25Southampton Eastleigh
1h 20m
BFS13:45Belfast Intl
29 Sept
BFS10:05Belfast Intl
1h 15m
SOU11:20Southampton Eastleigh
£79
Find similar
easyJet
9 Oct
SOU15:05Southampton Eastleigh
1h 20m
BFS16:25Belfast Intl
10 Oct
BFS10:30Belfast Intl
1h 15m
SOU11:45Southampton Eastleigh
£80
Find similar

KLM flights from Southampton to Northern Ireland

Our best KLM deals on Southampton to Northern Ireland flight tickets
KLM
22 Nov
SOU09:25Southampton Eastleigh
11h 35m
1 stop
BHD21:00Belfast City
27 Nov
BHD17:20Belfast City
14h 45m
1 stop
SOU08:05Southampton Eastleigh
£221
Find similar
KLM
20 Sept
SOU09:20Southampton Eastleigh
7h 35m
1 stop
BHD16:55Belfast City
27 Sept
BHD06:30Belfast City
11h 00m
1 stop
SOU17:30Southampton Eastleigh
£380
Find similar

momondo 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, momondo users made 279,928 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Southampton to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 17/10

12:15-13:35

Nonstop1h 20m

Belfast Intl

Sun 19/10

10:10-11:25

Nonstop1h 15m

£63

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 8/11

08:55-10:35

Nonstop1h 40m

Belfast City

Sat 15/11

06:40-08:25

Nonstop1h 45m

£73

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Mon 24/11

08:55-10:35

Nonstop1h 40m

Belfast City

Thu 27/11

10:10-11:50

Nonstop1h 40m

£78

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Fri 26/9

12:25-13:45

Nonstop1h 20m

Belfast Intl

Mon 29/9

10:05-11:20

Nonstop1h 15m

£79

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 8/11

08:55-10:35

Nonstop1h 40m

Belfast City

Sat 15/11

06:40-08:25

Nonstop1h 45m

£79

SouthamptonBelfast

SOU - BFS

SOUBFS

Southampton Eastleigh

Thu 9/10

15:05-16:25

Nonstop1h 20m

Belfast Intl

Fri 10/10

10:30-11:45

Nonstop1h 15m

£80

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 28/9

08:55-10:30

Nonstop1h 35m

Belfast City

Sat 4/10

06:40-08:25

Nonstop1h 45m

£81

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 28/9

08:55-10:30

Nonstop1h 35m

Belfast City

Sat 4/10

06:40-08:25

Nonstop1h 45m

£81

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sat 22/11

09:25-21:00

1 stop11h 35m

Belfast City

Thu 27/11

17:20-08:05

1 stop14h 45m

£221

SouthamptonBelfast

SOU - BHD

SOUBHD

Southampton Eastleigh

Sun 23/11

19:00-20:35

Nonstop1h 35m

Belfast City

Fri 28/11

16:55-18:30

Nonstop1h 35m

£225

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Southampton to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Northern Ireland?

In general, January is the cheapest month to fly from Southampton to Northern Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £70. If you’re not able to fly to Northern Ireland in January, then February is your next best option. Flight prices from Southampton to Northern Ireland during February average around £85.

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart from Southampton to Northern Ireland is on a Wednesday. Travellers who choose to depart for Northern Ireland on a Wednesday will often find tickets for as low as £68. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around £100. These prices are subject to change though, so be sure to set up a Price Alert for flights to Northern Ireland.

What is the cheapest time of day to depart on your flight to Northern Ireland?

Flying to Northern Ireland from Southampton in the evening is the least expensive time of day to depart. momondo users have found prices as low as £94 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £109 on average. Flights to Northern Ireland from Southampton in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Southampton Eastleigh to Northern Ireland flight route?

Fly from Southampton Eastleigh to Belfast Intl for the best Southampton Eastleigh - Northern Ireland flight prices

How far in advance should I book a flight to Northern Ireland?

You are more likely to see cheaper flights to Northern Ireland from Southampton when booking weeks ahead of your departure date. In general, you can expect to find flights to Northern Ireland for around £95 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Northern Ireland from Southampton for as low as £59 on momondo.

What cabin class options are available on Southampton Eastleigh to Northern Ireland flights?

There are 2 cabin classes available to choose from on Southampton Eastleigh to Northern Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Southampton to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Southampton to Northern Ireland

Best price found

£26

Fastest flight time

1h 20m

Direct flights

Mon, Tue, Fri, Sat and Sun

Airports in Northern Ireland

2 airports
The best one-way flight to Northern Ireland from Southampton in the past 72 hours is £26. The best return flight deal from Southampton to Northern Ireland found on momondo in the last 72 hours is £84.
The fastest flight from Southampton to Northern Ireland takes 1h 20m
Direct flights go from Southampton to Northern Ireland on Monday, Tuesday, Friday, Saturday and Sunday. Airlines offering direct flights are: Aer Lingus and easyJet..
There are 2 airports near Northern Ireland: Belfast Intl (BFS), Belfast City (BHD)
Search flight deals

  • When did momondo last update prices for flights from Southampton Eastleigh Airport to Northern Ireland?

    Prices for flights from Southampton Eastleigh Airport to Northern Ireland were last updated today.

  • How many operators does momondo search for flights from Southampton Eastleigh Airport to Northern Ireland?

  • How old do you have to be to fly from Southampton Eastleigh Airport to Northern Ireland?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Southampton Eastleigh Airport to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Southampton to Northern Ireland?

Best airlines flying from Southampton to Northern Ireland

Compare and see reviews for airlines that fly from Southampton to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
easyJetPriceFrom £33Free CancellationRating
6.9
1,820 reviews
Search easyJet flights
Aer LingusPriceFrom £62Free CancellationRating
7.2
1,274 reviews
Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from Southampton to Northern Ireland?

It is quick and easy to find Southampton to Northern Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Northern Ireland that suits you.

Can I find flights from Southampton to Northern Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Northern Ireland from Southampton which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Southampton to Northern Ireland?

Once all potential Southampton to Northern Ireland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Southampton to Northern Ireland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Southampton to Northern Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Northern Ireland and let you know when they change.

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 17/10
Fri 24/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Northern Ireland

Popular Cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom £30
Flights to Manchesterfrom £30
Flights to Birminghamfrom £35
Flights to Edinburghfrom £28
Flights to Belfastfrom £29
Flights to Glasgowfrom £34
Flights to Bristolfrom £32
Flights to Newcastle upon Tynefrom £30
Flights to Aberdeenfrom £45
Flights to Liverpoolfrom £30
Flights to Leedsfrom £37
Flights to Invernessfrom £34