£33 Find Cheap Flights from Southampton to Northern Ireland – Compare and Save

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Cheap Flights from Southampton to Northern Ireland

Cheapest return flight prices found by our users on KAYAK in the last 5 days
Sort by: Cheapest
Belfast
1h 15mNonstop
from £59per person
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?

Flight prices are below average for this route right now.

Flights to Northern Ireland from Southampton usually cost between £88 and £126 in October.
The lowest price found in the past 5 days was £59 on easyJet (17 Oct–18 Oct).

What is the cheapest Southampton to Northern Ireland flight route?

The cheapest ticket to Northern Ireland from Southampton found in the last 5 days was to Belfast, at £55 return. The most popular route is from Southampton (SOU) to Belfast City Airport (BHD), and the cheapest return airline ticket found on this route in the last 5 days was £79.

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

The cheapest time of day to fly to Northern Ireland is generally in the evening, when retur flights cost £119 on average. Morning departures are around 2% 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 £139.

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

The cheapest month for flights from Southampton to Northern Ireland is September, when tickets cost £98 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of return tickets is £165 and £144 respectively.

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

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

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

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 20% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know - Cheap tickets from Southampton to Northern Ireland

Low season

November

Cheapest flight

£33
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly and prices are also 16% 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 £38 one-way - £91 round-trip

Reviews of the top airlines flying from Southampton to Northern Ireland

 
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.
7.3
Aer LingusOverall score based on 1793 reviews
7.2Comfort
7.0Entertainment
7.4Boarding
8.1Crew
6.7Food
Airline reviews

Incredible airline experience for many reasons. Only improvement, would be to have higher quality food, such as Organic and non-dairy food items. A number of us got sick. Thank you!

8.0 ExcellentClaire, Sept 2026
Read more Aer Lingus reviews

Incredible airline experience for many reasons. Only improvement, would be to have higher quality food, such as Organic and non-dairy food items. A number of us got sick. Thank you!

The legroom, seat width, inability to book my seat with the airline in advance when I paid extra to do so, the food is extremely plain and small. The cups of tea and coffee are small. Not to mention I had to pay for a g&T when I paid over $1k for a one way flight. Sheep travel better in a transporter.

It was a short flight, so not bad. No entertainment provided, nor a complimentary tea service.

Overall good. however, we were rerouted and my luggage was lost.

Ryanair delayed my flight by 7.30 hours gave us a embarrassing 4 euro voucher Got to Leeds/Bradford airport got to the car hire which I also booked through your site and they had given my car away then charged me a additional 192 pounds more for a car I didn’t even want complete scam

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

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.

As four hour wait with no explanation as to why the delay Very unacceptable

There was a delay because they had to switch planes it wasn’t explained very well nor were there updates.

Flight was two hours delayed then instead of flying to Gatwick we got diverted to Southend airport! Then they cancelled our flight and we all got told we had to get off the plane and make our own way to wherever we had to go? EasyJet just abandoned us, no help and as a tourist not knowing even where I was? Disgusting behaviour from the company!!

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!!

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.

Be sure to check bags for 23 kg,.(50 lbs) Coming from US I chose the wrong size luggage weight when I checked in on my phone, and had to pay more when I dropped it off

The on board air steward really made the journey. He was very entertaining

I was disappointed there was a 40 minute delay to flight

The trip itself was good. I have given only good as rating, because my first flight has been cancelled by a different airline and that caused disruption in my trip. I spent over ten hours in Luton airport and that caused me high tiredness, sickness, because of the very early initial trip. easyJet staff has been professional and friendly.

3 hours delayed Don’t understand why when you have paid for ‘speedy boarding’ they call you forward to then make you stand fir another 20 minutes in a confined space before boarding the plane.

Delayed and ketone runway. Was told some nonsense about thunderstorms slowing down flights. Why not just come out and tell customers NATO and BRITISH FORCES were doing defence exercises and were in control of AIR SPACE.

More options for your flight from Southampton to Northern Ireland

Complete your trip to Northern Ireland with a hotel stay or car hire