£22 Find Cheap Flights from Southampton to Belfast

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 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 Belfast

 
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

Save 25% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest return fare
£69
Overall average: £84
easyJet
Sat 2/5Mon 4/5
SOU - BFS • Direct
Cheapest one-way flight
£22
Typical prices: £36-£47
easyJet
Sun 19/4
SOU - BFS • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Opt for Speedy Boarding with easyJet's Standard Plus.
Aer Lingus offers friendly cabin crew service onboard.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
easyJet
Cheapest • from £72 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
SOU-BFS
Cheapest • 26% average savings
SOU-BHD
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
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!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Southampton to Belfast (SOU-BHD)

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

Sat, 2 May - Mon, 4 May
easyJet Logo
12:15 - 13:30
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£69easyJet
Fri, 24 Apr - Mon, 27 Apr
easyJet Logo
12:20 - 13:35
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£72easyJet
Fri, 24 Apr - Mon, 27 Apr
easyJet Logo
12:20 - 13:35
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£72easyJet
Fri, 24 Apr - Mon, 27 Apr
easyJet Logo
12:20 - 13:35
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£73easyJet
Thu, 26 Mar - Sun, 29 Mar
easyJet Logo
17:55 - 19:35
SOU
-
BFS
25h 40m1 stop
easyJet Logo
10:50 - 12:05
BFS
-
SOU
1h 15mdirect
£81easyJet
Wed, 28 Jan - Thu, 29 Jan
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50
BHD
-
SOU
1h 40mdirect
£87Aer Lingus
Tue, 10 Feb - Wed, 11 Feb
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
06:40 - 08:25
BHD
-
SOU
1h 45mdirect
£88Aer Lingus
Fri, 29 May - Mon, 1 Jun
easyJet Logo
12:20 - 13:35
SOU
-
BFS
1h 15mdirect
easyJet Logo
10:35 - 11:50
BFS
-
SOU
1h 15mdirect
£94easyJet
Tue, 17 Feb - Mon, 23 Feb
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50
BHD
-
SOU
1h 40mdirect
£98Aer Lingus
Tue, 17 Feb - Thu, 19 Feb
Aer Lingus Logo
08:55 - 10:35
SOU
-
BHD
1h 40mdirect
Aer Lingus Logo
10:10 - 11:50
BHD
-
SOU
1h 40mdirect
£98Aer Lingus
Booking Insights

KAYAK's insights & trends for Southampton to Belfast flights

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

What is the cheapest Southampton to Belfast flight route?

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

The cheapest return flight from Southampton to Belfast costs £50 on the route between Southampton (SOU) and Belfast Intl Airport (BFS). Over the past month, this route was, on average, 26% cheaper than other Southampton-Belfast routes. The most popular route is between Southampton (SOU) and Belfast City Airport (BHD).

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

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

When flying from Southampton to Belfast, you should consider leaving on a Sunday and avoid Tuesdays if you are looking for the best rates. For your return to Southampton, you’ll find the best rates on Wednesdays and the most expensive ones on Fridays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Southampton to Belfast, 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 is January, where tickets cost £80 (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 £144 respectively.

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

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, 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, you should book around 2 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Expert advice

Expert advice for your flight from Southampton to Belfast

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aer Lingus

Book AerSpace for front-row seating and extra comfort on short-haul flights.


Enjoy friendly cabin crew service, enhancing your travel experience.

easyJet

Opt for Speedy Boarding with Standard Plus for a smoother, quicker boarding experience.


Check in online to avoid airport fees and save time with hand luggage only.

Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Read more
Blane Bachelor

Blane Bachelor

Expert on easyJet

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specialising in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favourite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history.

Read more

Good to know - Cheap tickets from Southampton to Belfast

Cheapest flight£22
Flight from Southampton to Belfast Intl Airport

When to book flights from Southampton to Belfast

Are your dates flexible? Find out the best times to travel from Southampton to Belfast 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 flights from Southampton to Belfast

  • What is the cheapest flight from Southampton to Belfast?

    In the last 3 days, the lowest price for a flight from Southampton to Belfast was £22 for a one-way ticket and £69 for a return.

  • Which airports will I be using when flying from Southampton to Belfast?

    Southampton is served by only 1 airport and there are 2 airports in Belfast. You will leave Southampton from Southampton Eastleigh and you will be arriving in Belfast at one of these airports: Belfast Intl or Belfast City.

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

    We unfortunately don’t have that data for this specific route.

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

    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.

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

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

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

    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 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?

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

Prefer to fly direct from Southampton to Belfast?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Southampton Eastleigh to Belfast.
Find which airlines fly direct from Southampton Eastleigh Airport to Belfast, which days they fly and book direct flights.

Direct departures

Southampton Eastleigh to Belfast

Monday

Aer Lingus, easyJet

Aer Lingus, easyJet

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus, easyJet

Aer Lingus, easyJet

See more direct flights

Direct returns

Belfast to Southampton Eastleigh

Monday

Aer Lingus, easyJet

Aer Lingus, easyJet

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus, easyJet

Aer Lingus, easyJet

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus, easyJet

Aer Lingus, easyJet

See more direct flights

Reviews of the top airlines flying from Southampton to Belfast

 
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? 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 1430 reviews
6.9Entertainment
8.0Crew
7.4Boarding
7.1Comfort
6.6Food
Airline reviews

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

6.0 GoodMagdalena, Jan 2026
FCO - DUB
Read more Aer Lingus reviews

The staff was amazing, so friendly and responsive. Check in was tedious as the online service was not available and the desk understaffed. It took a full hour in line to check in. The seats, in economy, where quite spacious until the people in front of us reclined their seats which then meant the seat was touching our knees. The inconsiderate people who were seated in a bulkhead kept their seats reclined for 80% of the flight and then got annoyed when we bumped their seats while shifting positions. It was highly unpleasant..

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.

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

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

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

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".

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!

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

Information on your arrival and departure airports