£22 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 19/4. 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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Cheap Flights from Southampton to Northern Ireland

Cheapest return prices found by our users on KAYAK in the last 72 hours
Belfast
Belfastdirect£85
Londonderry
Londonderry1 stop£248
Belfast
Belfastdirect£85
Londonderry
Londonderry1 stop£248

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

Mon, 18 May - Mon, 25 May
easyJet Logo
12:25 - 13:40
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£85easyJet
Mon, 6 Apr - Mon, 13 Apr
easyJet Logo
12:25 - 13:40
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£86easyJet
Mon, 30 Mar - Sun, 5 Apr
easyJet Logo
12:25 - 13:40
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:50 - 12:05
BFS
-
SOU
1h 15mdirect
£92easyJet
Tue, 31 Mar - Sat, 4 Apr
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25
BHD
-
SOU
1h 45mdirect
£93Aer Lingus
Sun, 14 Jun - Mon, 15 Jun
easyJet Logo
12:35 - 13:50
SOU
-
BFS
1h 15mdirect
easyJet Logo
06:40 - 12:25
BFS
-
SOU
5h 45m
1 stop
£94easyJet
Mon, 6 Apr - Mon, 20 Apr
easyJet Logo
12:25 - 13:40
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£96easyJet
Thu, 4 Jun - Mon, 8 Jun
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25
BHD
-
SOU
1h 45mdirect
£97Aer Lingus
Sun, 5 Apr - Sun, 12 Apr
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25
BHD
-
SOU
1h 45mdirect
£97Aer Lingus
Sun, 5 Apr - Sun, 12 Apr
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25
BHD
-
SOU
1h 45mdirect
£98Aer Lingus
Tue, 7 Apr - Tue, 14 Apr
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
10:25 - 12:05
BHD
-
SOU
1h 40mdirect
£99Aer Lingus
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.

How much is a return flight from Southampton to Northern Ireland?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Southampton to Northern Ireland departing in May.

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 £69 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 £94.

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

The average price for all round-trip flights from Southampton to Northern Ireland depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Northern Ireland is generally in the evening, when retur flights cost £113 on average. Morning departures are around 8% more expensive than evening flights, on average. 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 £128.

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 May, when tickets cost £82 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of return tickets is £161 and £144 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 Wednesday. On your return trip to Southampton, you should consider flying back on a Sunday, and avoid Saturdays 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 5 weeks before departure, which saves you about 30% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know - Cheap tickets from Southampton to Northern Ireland

Low seasonJanuary
Cheapest flight£22
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 30% lower on average.
Flight from Southampton to Belfast Intl 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.

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 £59 one-way - £111 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 1474 reviews
6.6Food
7.0Entertainment
8.1Crew
7.4Boarding
7.2Comfort
Airline reviews

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

10.0 ExcellentAnonymous, Feb 2026
DUB - LHR
Read more Aer Lingus reviews

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

One of the best flight experience I have had in along time. Would fly with them again.

Like getting a bus. No great luxury but will get you there

Got us to destination alive, albeit a bit late. Luggage was left behind. No live tracking app available (available on some other airlines). Supposedly going to be delivered in next couple of days.

My seat was broken. No sound available and the armrest between my wife and I was broken so it could only fold halfway up. Seats were a big close together so they felt a bit claustrophobic. Boarding was a little frustrating in Dublin as there is not sufficient room to actually queue up. Boarding was also frustrating for people behind me who were unable to use the overhead due to people abusing the privilege and putting more than one item each up there. Staff was friendly and helpful to those people.

The connection time between the regional flight (from Newcastle) to an international flight (to The States) was too short. To require as second security scan and customs clearance within an hour and 20 mins is not enough time to make the actual connection. We had a final boarding call the minute we walked out of US customs and had to sprint (with two small children) through 20 gates to make it in time before the door closed. The concept is great in theory to clear customs before leaving Europe, but the timing needs to be adjusted. We travel abroad frequently and won’t be using this route again. Thanks.

Well, I think we left close to on time. Crew was “eh”.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

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.

It was good except they could offer free water and tea/coffe

Sitting on the last row in between the aisle and a massive person, all people going to the bathroom bumped into me including the flight attendants.

Sat at rear of aircraft and was very cold. As a frequent flyer for many years, this is was the coldest I have ever been. Other passengers and some crew were complaining how cold it was. Sitting near the doors always risks being colder, just the way the aircraft works - but this was exceptional, bring a good jumper. Everything else was pretty standard easyJet - good value low cost carrier.

The best budget airline in Europe. Flight was on time, crew friendly and worked hard during flight and were able to meet our needs. Only downside (not the airline's fault), there were no rear steps.

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

Boarding and disembarking were smooth. Not offering free water was cheap ... I've never encountered that before on a flight.

Boarding could be better. To get through your gate but to be stood in a corridor for 20 minutes is not great.

The plane was postponed for over 2.5 hours, which meant that all four of us missed the check in time for our ongoing trip to Melbourne. We had to buy new tickets for 4 people as we had to forfeit the ones we had. The cost was really unfair. i understand that it was snowing during the first leg of the plane for that morning. Surely the cost could have been shared by the airline and not all by us. I could have bought insurance - but you can see how much I travel. I will need to chose more trustworthy airlines.

The true is that travel from London to Faro on 11/12/2025 by BA was cancelled, so I did not go to Faro, so i did not board easy flight. The mediocre qualification to you was because even when i bought an insurance, i could not change date neither obtain reimbursement. It could be ideal if you do something in order for me not to lose the purchase Thank you

Queuing for quite a while despite using the "speedy boarding".

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

Information on your arrival and departure airports