SOU - BFS

£71 Find Cheap Flights from Southampton to Belfast Intl Airport

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 Belfast Intl departing on 16/4. 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 Belfast Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Southampton to Belfast, 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 Belfast, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£86
Overall average: £90
easyJet
ו' 3/4א' 5/4
SOU - BFS • Direct
Cheapest one-way flight
£71
Typical prices: £36-£47
easyJet
ה' 16/4
SOU - BFS • 1 stop
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 30% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Belfast Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Southampton to Belfast Intl (SOU-BFS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Southampton to Belfast Intl 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 Belfast Intl

ו', 3 אפר' - א', 5 אפר'
easyJet Logo
12:20 - 13:35
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:50 - 12:05
BFS
-
SOU
1h 15mdirect
£86easyJet
ו', 5 יוני - ש', 13 יוני
easyJet Logo
12:20 - 13:35
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:30 - 11:45
BFS
-
SOU
1h 15mdirect
£97easyJet
ה', 5 פב​​​​​​​' - ה', 12 פב​​​​​​​'
easyJet Logo
17:55 - 19:35
SOU
-
BFS
25h 40m1 stop
easyJet Logo
13:35 - 17:20
BFS
-
SOU
3h 45m1 stop
£115easyJet
ה', 16 אפר' - ו', 17 אפר'
easyJet Logo
11:40 - 21:10
SOU
-
BFS
9h 30m1 stop
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£124easyJet
ה', 16 אפר' - ו', 17 אפר'
easyJet Logo
11:40 - 21:10
SOU
-
BFS
9h 30m1 stop
easyJet Logo
21:05 - 08:20
BFS
-
SOU
11h 15m1 stop
£156easyJet
ש', 17 ינו' - ב', 19 ינו'
Multiple Airlines Logo
09:30 - 22:45
SOU
-
BFS
13h 15m2 stops
Multiple Airlines Logo
08:15 - 11:25
BFS
-
SOU
3h 10m1 stop
£185Multiple Airlines
ש', 10 ינו' - ש', 31 ינו'
Multiple Airlines Logo
17:15 - 22:00
SOU
-
BFS
4h 45m1 stop
Multiple Airlines Logo
13:10 - 08:45
BFS
-
SOU
19h 35m2 stops
£196Multiple Airlines
ו', 23 ינו' - א', 25 ינו'
easyJet Logo
17:45 - 07:25
SOU
-
BFS
13h 40m1 stop
easyJet Logo
21:45 - 11:25
BFS
-
SOU
13h 40m1 stop
£199easyJet
ש', 17 ינו' - א', 18 ינו'
Multiple Airlines Logo
17:15 - 06:45
SOU
-
BFS
13h 30m1 stop
Multiple Airlines Logo
11:30 - 17:45
BFS
-
SOU
6h 15m1 stop
£200Multiple Airlines
ו', 23 ינו' - ש', 24 ינו'
Multiple Airlines Logo
08:10 - 08:25
SOU
-
BFS
24h 15m2 stops
Multiple Airlines Logo
20:30 - 08:45
BFS
-
SOU
12h 15m2 stops
£201Multiple Airlines
Booking Insights

KAYAK's insights & trends for Southampton to Belfast Intl flights

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

What’s the cheapest day of the week to fly from Southampton to Belfast Intl Airport?

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

Your flight ticket price will generally be cheaper if you fly to Belfast Intl Airport 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.

What is the cheapest month to fly from Southampton to Belfast Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Southampton to Belfast Intl Airport, 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 Belfast Intl Airport is January, where tickets cost £72 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is £161 and £136 respectively.

How far in advance should I book a flight from Southampton to Belfast Intl Airport?

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 Belfast Intl Airport, 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 Belfast Intl Airport, you should book around 2 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know - Cheap tickets from Southampton to Belfast Intl Airport

Low seasonNovember
Cheapest flight£71
Best time to beat the crowds but there is an average 31% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Southampton to Belfast Intl Airport

When to book flights from Southampton to Belfast Intl

Are your dates flexible? Find out the best times to travel from Southampton to Belfast Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Southampton to Belfast Intl Airport flights

  • What is the cheapest flight from Southampton to Belfast Intl Airport?

    In the last 3 days, the lowest price for a flight from Southampton to Belfast Intl Airport was £71 for a one-way ticket and £86 for a return.

  • Which aircraft models fly most regularly from Southampton to Belfast Intl Airport?

    The ATR 72-201 / 202 is the aircraft model that flies most regularly on the Southampton to Belfast Intl Airport flight route.

  • Which is the best airline for flights from Southampton to Belfast, Aer Lingus or easyJet?

    The two airlines most popular with KAYAK users for flights from Southampton to Belfast are Aer Lingus and easyJet. With an average price for the route of £112 and an overall rating of 7.2, Aer Lingus is the most popular choice. easyJet is also a great choice for the route, with an average price of £72 and an overall rating of 6.9.

  • How does KAYAK find such low prices on flights from Southampton to Belfast Intl Airport?

    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 Belfast Intl Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport from Southampton 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 Belfast Intl Airport?

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

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

    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 to Belfast Intl Airport from Southampton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Southampton to Belfast Intl Airport

  • Looking for a cheap flight from Belfast Intl Airport to Southampton? 25% of our users found flights on this route for Belfast Intl Airport or less round-trip.

Reviews of the top airlines flying from Southampton to Belfast Intl

 
See real verified KAYAK customer reviews for airlines flying from Southampton to Belfast. 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 Belfast Intl? 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 1410 reviews
6.6Food
6.9Entertainment
7.4Boarding
8.0Crew
7.1Comfort
Airline reviews

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

10.0 ExcellentKimberly, Dec 2025
JFK - SNN
Read more Aer Lingus reviews

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

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

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

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.

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

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

Excellent flight and crew. Boarding at Dublin Airport was a very difficult trying to find the right gate.

Would not advise EasyJet for a 5 hour flight…small plane and hence a lot of turbulence. No inflight entertainment so struggle to pass time in cramped seats. We also fell victim to extra charge for our cabin bags, although bag dimensions were ok, but the handle was rigid and slightly fell outside their testing cage!!….never again will we fly with this airline and be party to their scams for making money!

The food and so are to expensive and old . Crew whas not very friendly . Apparently some other passenger can just Push through the waiting people to board while almost punching me and a father with a child down the stairs. Its always something with easy jet . The seats of row 26 where lose . And for a guy of my size there is absolutely no leg room at all .

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.

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

Everything you need to know for your flight from Southampton to Belfast Intl

Information on your arrival and departure airports