£41 Find Cheap Flights from Southampton to Northern Ireland

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Southampton to Northern Ireland departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Northern Ireland

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Southampton to Northern Ireland, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Southampton to Northern Ireland, as well as popular online travel agencies
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Flight Deals

Book Cheap Southampton to Northern Ireland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Southampton to Northern Ireland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Southampton to Northern Ireland

Wed, 26 Nov - Tue, 9 Dec
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£80Aer Lingus
Find Deal
Fri, 16 Jan - Sun, 18 Jan
easyJet Logo
17:45 - 07:25SOU-BFS
13h 40m1 stop
easyJet Logo
21:45 - 11:25BFS-SOU
13h 40m1 stop
£86easyJet
Find Deal
Fri, 9 Jan - Sun, 11 Jan
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
£95Aer Lingus
Find Deal
Wed, 26 Nov - Thu, 27 Nov
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50BHD-SOU
1h 40mdirect
£96Aer Lingus
Find Deal
Fri, 9 Jan - Sun, 11 Jan
easyJet Logo
17:45 - 07:25SOU-BFS
13h 40m1 stop
easyJet Logo
21:45 - 11:25BFS-SOU
13h 40m1 stop
£99easyJet
Find Deal
Fri, 16 Jan - Sun, 18 Jan
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
Aer Lingus Logo
10:10 - 11:50BHD-SOU
1h 40mdirect
£102Aer Lingus
Find Deal
Sat, 29 Nov - Thu, 4 Dec
Aer Lingus Logo
15:45 - 17:20SOU-BHD
1h 35mdirect
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
£102Aer Lingus
Find Deal
Wed, 26 Nov - Wed, 26 Nov
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
£106Aer Lingus
Find Deal
Wed, 26 Nov - Mon, 1 Dec
Aer Lingus Logo
08:55 - 10:35SOU-BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50BHD-SOU
1h 40mdirect
£109Aer Lingus
Find Deal
Sat, 6 Dec - Sun, 7 Dec
KLM Logo
09:25 - 21:00SOU-BHD
11h 35m1 stop
KLM Logo
06:30 - 08:10BHD-SOU
25h 40m1 stop
£223KLM
Find Deal
Booking Insights

KAYAK's insights & trends for Southampton to Northern Ireland flights

Get data-powered insights and trends into flights from Southampton to Northern Ireland to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Southampton to Northern Ireland flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Northern Ireland from Southampton found in the last 72 hours was to Belfast, at £60 return. The most popular route is from Southampton (SOU) to Belfast City Airport (BHD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £88.

What is the cheapest month to fly from Southampton to Northern Ireland?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Southampton to Northern Ireland, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Southampton to Northern Ireland is January, when tickets cost £73 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £130 and £127 respectively.

What’s the cheapest day of the week to fly from Southampton to Northern Ireland?

The average price of all round-trip flights from Southampton to Northern Ireland clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Northern Ireland on a Sunday and more expensive on a Tuesday. On your return trip to Southampton, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Southampton to Northern Ireland, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Southampton to Northern Ireland, you should book around 2 weeks before departure, which saves you about 33% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know - Cheap tickets from Southampton to Northern Ireland

Low seasonSeptember
Cheapest flight£41
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flight from Southampton to Belfast City Airport

FAQs - booking Northern Ireland flights

  • How does KAYAK find such low prices on flights from Southampton to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Southampton to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southampton to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Southampton to Northern Ireland is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Southampton to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Southampton to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southampton to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Southampton to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Northern Ireland?

    The cheapest time of day to fly to Northern Ireland is generally at night, when retur flights cost £104 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Northern Ireland is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £115.

Top tips for finding a cheap flight from Southampton to Northern Ireland

  • Looking for a cheap flight from Southampton to Northern Ireland? 25% of our users found tickets from Southampton to Northern Ireland for the following prices or less: Belfast £54 one-way - £77 round-trip; Belfast £40 one-way - £96 round-trip

Reviews of the top airlines flying from Southampton to Northern Ireland

 
See real verified KAYAK customer reviews for airlines flying from Southampton to Northern Ireland. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Southampton to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1361 reviews
6.6Food
8.0Crew
7.1Comfort
7.4Boarding
6.9Entertainment
Airline reviews

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

4.0 OkayHarry, Oct 2025AMS - DUB
Read more Aer Lingus reviews

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

I liked that I went thru customs in Dublin instead of having to do that in LA.

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

The worst Terrible Late for connecting flights. Made flight without luggage! I am still waiting for my luggage to be returned! I paid premium for this flight. My luggage should have been flown to Hartford instead they keep telling me it was put on a jet blue flight and is in New York! I flew Hartford to avoid New Yofk! The flight over was also unpleasant. We were stuck in a bus at Edinburgh airport for 30 minutes then our luggage again could not be found! Very poor service. Very disappointed . I need my luggage to be returned. Shirley Baliki 42 Blaine Sreet Fairfield CT

Baggage fees are deceptive! When I booked this flight, I purchased two tickets and had indicated that I wanted one checked bag. That increased the ticket price by about $100 PER TICKET!. When we went to check in, I was told that I could only check ONE bag, even though I had purchased TWO tickets. I had to pay an additional $50 each way for my wife’s bag. In my opinion, I paid twice for her bag.

Delays resulting in missed connecting flight. Attendant failed to arrange special assistance as promised to get us on connecting flight. Robyn was the particular attendant.

Very good except for the boarding process which was more hectic than it should have been

Nice to fly out of Orly smaller easier to navigate airport. Being able to receive boarding pass well in advance of trip was comforting to know all travel was in order.

Liked. The check-in was pretty quick as they had 5 desks working.

Generally a good experience except for boarding in Naples on the flight back to London. We were all standing around for at least 20 minutes maybe longer as there was no seating.

Seats, WC,sizes for today's generation adults, and if technical problems arise a complimentary coffee, water nice for waiting one hours, the rest is perfect (pilot and cabin crew)

Boarding was smooth and quick. Flight departed on time. Equally evacuation upon landing was from both the front door and the back doors. Bags were on the conveyor belts before I got there. Excellent service.

The terminals are far away, be prepared to walk. Also, You climb stairs to the plane since there are no aero bridges. Boarding was haphazard not in multiple groups, so stand in line early. Hard to find place to stow cabin baggage if you are behind in the line. You can purchase food on the plane. There are vegetarian options.

First -the flight was late - more than two hours Second, not even a bottle of water at bord to give for free for this inconvenience. Three-at landing ive realised that I've lost one of my ear plug headphones and been very desperate to find it with my torch, the crew not helped at all more than that they asked to leave the plane as everyone did before me. This was the last flight from that day- extra 5 min for me with a bit of help from crew - would have bring a super review. I guess this days humanity disappeared!

I got caught using a stolen credit card number. Michelle Siziba is my name Nice to London Gatwick on 7/31/25.

Not happy with price of luggage or that we had no choice but to pay whether cabin or hold. I didn't book seats but this is unnecessary extra money along with suitcase

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

Everything you need to know for your flight from Southampton to Northern Ireland

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