SOU

£50 Find Cheap Flights from Belfast to Southampton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to Southampton departing on 6/11. 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 Southampton

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

Save 24% 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.

Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Belfast to Southampton

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

Thu, 30 Oct - Mon, 3 Nov
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£92Aer Lingus
Find Deal
Fri, 12 Dec - Mon, 15 Dec
Aer Lingus Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£93Aer Lingus
Find Deal
Wed, 12 Nov - Wed, 19 Nov
Aer Lingus Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
Aer Lingus Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£94Aer Lingus
Find Deal
Fri, 12 Dec - Mon, 15 Dec
Multiple Airlines Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
Multiple Airlines Logo
08:30 - 09:35SOU-BHD
25h 05m2 stops
£144Multiple Airlines
Find Deal
Wed, 12 Nov - Wed, 19 Nov
Multiple Airlines Logo
14:15 - 08:45BHD-SOU
18h 30m2 stops
Multiple Airlines Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£157Multiple Airlines
Find Deal
Fri, 12 Dec - Mon, 15 Dec
easyJet Logo
10:35 - 17:10BFS-SOU
6h 35m1 stop
easyJet Logo
12:05 - 20:20SOU-BFS
8h 15m1 stop
£160easyJet
Find Deal
Fri, 12 Dec - Mon, 15 Dec
easyJet Logo
10:35 - 17:10BFS-SOU
6h 35m1 stop
easyJet Logo
08:30 - 08:20SOU-BFS
23h 50m2 stops
£182easyJet
Find Deal
Tue, 25 Nov - Thu, 27 Nov
British Airways Logo
16:55 - 18:30BHD-SOU
1h 35mdirect
British Airways Logo
19:00 - 20:35SOU-BHD
1h 35mdirect
£224British Airways
Find Deal
Tue, 3 Mar - Wed, 4 Mar
British Airways Logo
06:40 - 08:25BHD-SOU
1h 45mdirect
British Airways Logo
12:15 - 13:50SOU-BHD
1h 35mdirect
£227British Airways
Find Deal
Wed, 29 Oct - Sun, 2 Nov
Loganair Logo
13:30 - 14:05BHD-SOU
24h 35m2 stops
Loganair Logo
18:25 - 13:00SOU-BHD
18h 35m2 stops
£765Loganair
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
EasyJet's Speedy Boarding reduces gate wait times.
Aer Lingus offers friendly cabin crew for a better experience.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Aer Lingus
Cheapest • from £92 (return)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BFS-SOU
Cheapest • 36% average savings
BHD-SOU
Most popular
Insights
Insights
Insights
Insights
Cheapest return fare
£92
Overall average: £105
Aer Lingus
Thu 30/10Mon 3/11
BHD - SOU • Direct
Cheapest one-way flight
£50
Typical prices: £71-£86
Aer Lingus
Thu 6/11
BHD - SOU • Direct
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 Southampton!
Booking Insights

KAYAK's insights & trends for Belfast to Southampton flights

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

What is the cheapest Belfast to Southampton flight route?

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

The cheapest return flight from Belfast to Southampton costs £39 on the route between Belfast Intl Airport (BFS) and Southampton (SOU). Over the past month, this route was, on average, 36% cheaper than other Belfast-Southampton routes. The most popular route is between Belfast City Airport (BHD) and Southampton (SOU).

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

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

Your flight ticket price will generally be cheaper if you fly to Southampton on a Wednesday and more expensive on a Friday. On your return trip to Belfast, you should consider flying back on a Sunday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Belfast to Southampton, 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 Belfast to Southampton is March, where tickets cost £71 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £165 and £162 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Belfast to Southampton, 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 Belfast to Southampton, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Expert advice

Expert advice for your flight from Belfast to Southampton

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Aer Lingus

Aer Lingus offers friendly cabin crew on short-haul flights, enhancing the travel experience.


AerSpace fare tier provides front-row seating with more comfort on short-haul flights.

easyJet

EasyJet's Speedy Boarding allows quicker boarding, reducing wait times at the gate.


EasyJet's Standard Plus fare includes an overhead cabin bag and Speedy Boarding.

Read more about easyJetby Blane Bachelor
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 Belfast to Southampton

Cheapest flight£50
Flight from Belfast City Airport to Southampton

When to book flights from Belfast to Southampton

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

  • What is the cheapest flight from Belfast to Southampton?

    In the last 3 days, the lowest price for a flight from Belfast to Southampton was £67 for a one-way ticket and £123 for a return.

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

    Belfast has 2 major airports: Belfast Intl and Belfast City. Southampton Eastleigh is the only airport in Southampton. You’ll usually find the cheapest deals if you fly from Belfast City Airport.

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

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

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

    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 Belfast to Southampton.

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

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

    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 Southampton with an airline and back to Belfast with another airline.

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

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

Prefer to fly direct from Belfast to Southampton?

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

Direct departures

Belfast to Southampton Eastleigh

Monday

Aer Lingus

Aer Lingus

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

Aer Lingus

See more direct flights

Direct returns

Southampton Eastleigh to Belfast

Monday

Aer Lingus

Aer Lingus

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

Aer Lingus

See more direct flights

Reviews of the top airlines flying from Belfast to Southampton

 
See real verified KAYAK customer reviews for airlines flying from Belfast to Southampton. 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 Belfast to Southampton? 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 1341 reviews
6.9Entertainment
6.5Food
7.4Boarding
7.1Comfort
8.0Crew
Airline reviews

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

8.0 ExcellentRonald, Oct 2025FCO - DUB
Read more Aer Lingus reviews

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

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

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

A caveat, we flew during the ransomware attack that hacked the boarding and luggage tracking systems. I wouldn't ever be angry at the employees for that, but I WOULD be (and am) angry that communication was incredibly poor, that we got few live updates, and that the employees seemed uninformed and ill-equipped to handle the situation. Clear, honest, open communication and instructions would have benefited the situation. Unfortunately, there were literally no gate agents to talk to, no airport employees to direct people, and no clear signage (the app pretty much said "we don't know what gate your flight is."). Beyond this nightmare, the security was the usual dehumanizing circus of "Security Theater" which is... as we all know... only for show and completely useless. All three airports on this journey dropped the ball so hard. The flight industry can do so much better. Aer Lingus can do so much better.

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

Baggage fees are deceptive! When I booked this flight, I purchased two tickets and had indicated that I wanted one checked bag. That increased the ticket price by about $100 PER TICKET!. When we went to check in, I was told that I could only check ONE bag, even though I had purchased TWO tickets. I had to pay an additional $50 each way for my wife’s bag. In my opinion, I paid twice for her bag.

Delays resulting in missed connecting flight. Attendant failed to arrange special assistance as promised to get us on connecting flight. Robyn was the particular attendant.

Very good except for the boarding process which was more hectic than it should have been

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

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.

The terminals are far away, be prepared to walk. Also, You climb stairs to the plane since there are no aero bridges. Boarding was haphazard not in multiple groups, so stand in line early. Hard to find place to stow cabin baggage if you are behind in the line. You can purchase food on the plane. There are vegetarian options.

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

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.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.