£35 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 31/8. 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

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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Flights Deals

Best Northern Ireland Flight Deals from Southampton

Cheapest return prices found by our users on KAYAK in the last 72 hours
Belfast
Belfastdirect£38
Londonderry
Londonderry2 stops£400
Belfast
Belfastdirect£38
Londonderry
Londonderry2 stops£400

Cheap Flights from Southampton to Northern Ireland

 
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

Sun, 31 Aug - Sun, 7 Sep
easyJet Logo
12:20 - 13:40SOU-BFS
1h 20mdirect
easyJet Logo
07:00 - 08:15BFS-SOU
1h 15mdirect
£38easyJet
Find Deal
Thu, 9 Oct - Sat, 11 Oct
easyJet Logo
15:05 - 16:25SOU-BFS
1h 20mdirect
easyJet Logo
13:35 - 14:50BFS-SOU
1h 15mdirect
£39easyJet
Find Deal
Thu, 9 Oct - Thu, 16 Oct
easyJet Logo
15:05 - 16:25SOU-BFS
1h 20mdirect
easyJet Logo
13:05 - 14:20BFS-SOU
1h 15mdirect
£40easyJet
Find Deal
Thu, 9 Oct - Fri, 17 Oct
easyJet Logo
15:05 - 16:25SOU-BFS
1h 20mdirect
easyJet Logo
10:30 - 11:45BFS-SOU
1h 15mdirect
£44easyJet
Find Deal
Thu, 28 Aug - Sat, 30 Aug
easyJet Logo
20:40 - 22:00SOU-BFS
1h 20mdirect
easyJet Logo
06:20 - 07:35BFS-SOU
1h 15mdirect
£49easyJet
Find Deal
Thu, 18 Sep - Mon, 22 Sep
Aer Lingus Logo
16:35 - 18:10SOU-BHD
1h 35mdirect
Aer Lingus Logo
11:00 - 12:40BHD-SOU
1h 40mdirect
£78Aer Lingus
Find Deal
Thu, 18 Sep - Sun, 21 Sep
Aer Lingus Logo
16:35 - 18:10SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£80Aer Lingus
Find Deal
Sun, 31 Aug - Sun, 7 Sep
Aer Lingus Logo
08:55 - 10:30SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£82Aer Lingus
Find Deal
Tue, 29 Jul - Tue, 5 Aug
Aer Lingus Logo
16:35 - 18:10SOU-BHD
1h 35mdirect
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
£85Aer Lingus
Find Deal
Thu, 28 Aug - Sat, 30 Aug
 Logo
20:00 - 20:30SOU-BFS
24h 30m2 stops
 Logo
06:20 - 07:35BFS-SOU
1h 15mdirect
Useful Info

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 round-trip flight from Southampton to Northern Ireland?

What is the cheapest Southampton to Northern Ireland flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Southampton to Northern Ireland.

The cheapest ticket to Northern Ireland from Southampton found in the last 72 hours was to Belfast, at £33 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 £83.

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 September, when tickets cost £68 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of return tickets is £104 and £93 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 Wednesday and more expensive on a Saturday. 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 the flight from Southampton to Northern Ireland, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know - Cheap tickets from Southampton to Northern Ireland

Low seasonDecember
High seasonOctober
Cheapest flight£35
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 1% 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.

  • 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 £125 on average. Morning departures are around 2% cheaper 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 £144.

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 £32 one-way - £60 round-trip; Belfast £52 one-way - £101 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.
7.1
Aer LingusOverall score based on 1152 reviews
8.0Crew
6.4Food
7.2Boarding
7.0Comfort
6.8Entertainment
Airline reviews

No entertained. food and beverages were not complimentary. they lost my checked luggage which made my 10 day vacation unpleasant.

4.0 OkayAnonymous, Jul 2025DUB - BOD
Read more Aer Lingus reviews

No entertained. food and beverages were not complimentary. they lost my checked luggage which made my 10 day vacation unpleasant.

Flight was on time. Boarding was quick and efficient. Seats were comfortable. Food was fine.

Weeeeeeell, you folks know economy class on Airbuses well--you're packed in like sardines. We may actually spring for more expensive seats next time, with a little room to stretch out. NO room to stretch out in Airbus economy class! :-) Apart from this, the food was decent (considering that it's mass-produced, and has severe spatial restrictions of its own), the staff were friendly enough, and there was a wide selection of movies, etc. to watch. Overall, I'd tend to use the word "adequate" rather than "exceptional" for my experience. But really, how could it be otherwise?

The ease of boarding was good. I wish they had something to eat on the plane.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. The check in desk wasn’t even opened on time (3 hours prior to departure) and there was no communication about when it would open or why there was a delay. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

The check in process at CDG was absolutely unacceptable. We arrived to the airport 3 hours and 20 minutes before our departure time, waited in line for 1 hour and 30 minutes to check in (despite having checked in online and only needing to check a bag), then were forced to check all of our rolling luggage despite the fact that all were compliant with carry-on requirements. The staff at the desk were rude and there were only two desks open, while eight people were working. We feared missing our flight because the departure board was not updated, so rushed to our gate to board once we were through security because it was 20 minutes prior to departure, only to wait another 30 minutes before boarding even started. Communication was lacking throughout the process. What a horrible end to our trip.

Really helpful staff at the airport and the flight was comfortable with good entertainment options and food service

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. At the expected boarding time, we were told we would be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

It was fine. We were delayed leaving but a situation of too many planes, not the airlines fault.

One cold drinks service. No snacks with drinks. No tomato juice or apple juice, coke - only fanta or sprite then ran out of that. Went to gally after meal service no one there / no self service for water at least. Waited 25 min for cabin crew to assist. No recycling of cardboard/ plastic - all put to garbage. Breakfast was a nutrigrain bar and an orange juice. Also I'm sure I booked a flight with checked luggage allowance but had to buy extra when I had my booking confirmation. Movies were good. Chairs comfy. Pillow and blanket and ac vents.

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.

sadly in Basel & Naples- no jetway we had to climb up and down stairs with our max size carry-on luggage, which was not fun!!!

This was our first time using them. I gave okay ratings for food and entertainment because it was minimal or not provided so I couldn't judge, but much better than most budget carriers we have ever used.

We were charged a ridiculous amount for a name spelling error on ticket which I would’ve corrected if I received pre-check info more than 1/2hr before flight. Then we were told at ticket counter that our bags were fine for boarding but then we’re charged another ridiculous amount to take in our luggage despite being told differently. Flight itself was great. Charges were unfair.

Apart from an email about re configuring passenger seating less than 24hrs before flying it was all good.

There were a lot (4 I think) of EasyJet flights leaving Agadir, we arrived two and a half ours before our flight. Very slow to get through the booking in, passport control and security!! We had booked in on line but had to Queue with others who had not to drop our bags off!,

We boarded and then sat on the tarmac for an hour….probably not E Jets fault. But the gentleman that checked us in and took our luggage was exceptionally friendly and calming for early morning/ confused passengers. As always, it’s the people that make or break an experience, right?

I was hesitant to book with a low cost airline due to previous experience but Easy Jet surpassed my expectations. I would definitely book a flight with them again! Seemless booking, upfront about baggage fees, professional, and helpful staff.

Kayak sent several notifications that the flight was late. This contradicted the information on the airport boards. This was extremely confusing and we very nearly missed the flight purely because we double checked with the info desk when the flight stays said’closed’. Kayak notifications are therefore unreliable and pointlesa

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

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