Cheap Flights from Belfast to Southampton

Compare Belfast to Southampton flight deals

Find the cheapest month or even day of the year to fly to Southampton

Book the best Southampton fare with no extra fees

Flight deals from Belfast to Southampton

Looking for a cheap last-minute deal or the best return flight from Belfast to Southampton? Find the lowest prices on one-way and return tickets right here.

Southampton.R 394 per passenger.Departing Sun, 3 May.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Sun, 3 May, arriving in Southampton.Price includes taxes and charges.From R 394, select.

Southampton.R 418 per passenger.Departing Sat, 11 Oct.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Sat, 11 Oct, arriving in Southampton.Price includes taxes and charges.From R 418, select.

Southampton.R 440 per passenger.Departing Sun, 19 Jul.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Sun, 19 Jul, arriving in Southampton.Price includes taxes and charges.From R 440, select.

Southampton.R 533 per passenger.Departing Mon, 7 Sep.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Mon, 7 Sep, arriving in Southampton.Price includes taxes and charges.From R 533, select.

Southampton.R 556 per passenger.Departing Mon, 30 Mar.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Mon, 30 Mar, arriving in Southampton.Price includes taxes and charges.From R 556, select.

Southampton.R 556 per passenger.Departing Mon, 8 Jun.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Mon, 8 Jun, arriving in Southampton.Price includes taxes and charges.From R 556, select.

Southampton.R 602 per passenger.Departing Mon, 27 Apr.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Mon, 27 Apr, arriving in Southampton.Price includes taxes and charges.From R 602, select.

Southampton.R 649 per passenger.Departing Sat, 3 Oct.One-way flight with easyJet.Outbound direct flight with easyJet departs from Belfast International on Sat, 3 Oct, arriving in Southampton.Price includes taxes and charges.From R 649, select.

Find the cheapest month to fly from Belfast to Southampton

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Belfast to Southampton flights are currently cheapest in May.

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Direct flights from Belfast to Southampton

Belfast to Southampton: Alternative routes

Compare routes from Belfast to Southampton below. You may find an airport to fly into that's cheaper, faster, or easier than Southampton.

Belfast to Southampton: Flight information

The things to know before you go.

Cheapest flight found	R 394
Cheapest month to fly	May
Average flight time	1 hr, 27 mins
Most popular airline	Aer Lingus
Average flights per week	23

Finding cheap flights from Belfast to Southampton: Frequently asked questions

How much are return flights from Belfast to Southampton?

The best price we found for a return flight from Belfast to Southampton is R 834. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Belfast to Southampton?

1 hour and 27 minutes is the average flight time from Belfast to Southampton.

Which airlines fly direct from Belfast to Southampton?

Aer Lingus, British Airways and easyJet fly direct from Belfast to Southampton.

How many flights are there a week from Belfast to Southampton?

As of September 2025, there are 27 flights per week flying from Belfast to Southampton.

When is the cheapest time to fly from Belfast to Southampton?

The cheapest month to fly from Belfast to Southampton is usually May.

Which upcoming date is cheapest to fly from Belfast to Southampton Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Belfast to Southampton Airport on Sunday, 3 May 2026.

Can I get a direct flight from Belfast to Southampton Airport?

Yes – the average flight time is 1 hour and 23 minutes.

How can I find the best flight deal to Southampton?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Southampton but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Southampton?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Southampton is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Belfast to Southampton with?

The cheapest airline that flies to Southampton is easyJet .

Travelling from Belfast to Southampton Airport (SOU): What you need to know

Kick off your travels at one of Belfast's main airports, Belfast International Airport (BFS) or George Best Belfast City Airport (BHD). Check out your options for booking a flight from Belfast to Southampton Airport (SOU) leaving from either of these.
1 hour 15 minutes is the average travel time for a direct Belfast to Southampton Airport flight.
Belfast and Southampton (where Southampton Airport is located) share the UTC+0 timezone. That means you won't have to change your watch when you arrive.
The most popular route is from Belfast International Airport (BFS) to Southampton Airport (SOU). You can choose from 3 direct services each week. easyJet operates a 6:20am departure between BFS and SOU.
To ensure you get on your flight from Belfast to SOU, leave plenty of time to navigate the airport and find your gate. Turning up two hours ahead of international departures and an hour before domestic flights is the general rule.
Heading off during a peak period like school or public holidays? Expect longer queues at check-in and security. For peace of mind, arrive up to four hours before international flights and two hours before domestic departures.

Airports in Belfast

Belfast International Airport (BFS)

Belfast International Airport (BFS) is a convenient option for travelling directly to your destination. Nonstop flights from Belfast to Southampton Airport (SOU) take off from this terminal.
easyJet is a well-known airline that operates direct flights from Belfast to Southampton Airport taking off from BFS.
The majority of passengers prefer to fly with easyJet from BFS to SOU.
Located around 32 kilometres from central Belfast, BFS can be reached in about 30 minutes by car, depending on traffic. The journey on public transport takes roughly 2 hours.
Planning to catch an early flight from Belfast to Southampton Airport? Avoid the mad dash to the terminal (and sneak in some extra snooze time) by picking one of these stays close to Belfast International Airport:
67.55% of flights taking off from Belfast International Airport touch down at their destination on schedule.

George Best Belfast City Airport (BHD)

Planning to leave from George Best Belfast City Airport (BHD)? Direct Belfast to Southampton Airport (SOU) plane tickets can be booked from here.
Take a direct flight from Belfast to SOU with Aer Lingus. This is one of the leading airlines flying this route out of BHD.
Aer Lingus is the most popular choice for passengers flying from BHD to SOU.
Flights between George Best Belfast City Airport and Southampton Airport are more likely to arrive on time with Aer Lingus than with any other carrier.
You can reach BHD from central Belfast in approximately 10 minutes by car, depending on traffic. The journey by public transport takes roughly 20 minutes to travel the 8 kilometres or so.
Got an early start? Think about staying at one of these hotels near George Best Belfast City Airport the day before your Belfast to SOU flight:
George Best Belfast City Airport has an on-time performance of 68.3%. This figure provides insight into how frequently flights departing from this airport make it to their destination on time.

About Southampton Airport (SOU)

The last thing you need is a lengthy journey to your hotel if you're arriving on a late flight from Belfast to Southampton Airport. Make yourself comfy at one of these accommodation options near SOU instead:
Say yes to new adventures by picking up a Southampton Airport rental car. Grab your wheels from Alamo, Budget or Europcar and explore beyond Southampton's usual tourist stops.
Secure the lowest price by reserving your ride around two weeks before your Belfast to Southampton Airport flight.

Getting from Southampton Airport (SOU) to central Southampton

Southampton Airport to the centre of Southampton is around 6 kilometres. If you're getting a cab or renting a car, do some research to make your trip as smooth as possible. Journey times can vary based on traffic conditions and the time of day.
It takes around 25 minutes if you're travelling on public transport.

How to find the cheapest flights from Belfast to Southampton Airport (SOU)

R 394 is currently the lowest price for a one-way ticket from Belfast to Southampton Airport. Return flights start at R 834. These fares can change based on demand.
To find cheap flights from Belfast to SOU, book in advance. Airlines generally offer lower prices when flights first go on sale.
If you can be flexible with your travel plans, try using the 'Whole month' search tool. It'll show you the lowest price in each month when searching for your Belfast to Southampton Airport ticket.
Finding a cheap plane ticket from Belfast to SOU is a breeze with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when a better deal is available.
Filters make it easier to dig up a deal for your flight from Belfast to Southampton Airport. Choose the departure times, airlines and number of stops that make sense for you. Then sort the results by 'Cheapest' to find the lowest price right away.

The best time to fly from Belfast to Southampton Airport (SOU)

It's time to decide your travel dates for your flight from Belfast to Southampton Airport (SOU). August is the most popular month to visit Southampton. If you like your getaways a little more chill, think about going in April.
The warmest month in Southampton is July, with temperatures ranging between 11ºC (52ºF) and 24ºC (75ºF). Book your Belfast to SOU plane ticket then if this is the type of weather you enjoy.
If you'd rather travel in cooler conditions, search for a cheap ticket from Belfast to Southampton Airport in January when temperatures are between 0ºC (32ºF) and 9ºC (48ºF).

More about Southampton

Start your Southampton trip off on the right foot by choosing the ideal place to stay. After booking your flight from Belfast to Southampton Airport, explore our selection of accommodation options including:
Your visit to Southampton should come with a side of sightseeing. Big-name attractions worth exploring include Site of Jane Austen's House, Mayflower Theatre and Kennet & Avon Canal.

Explore more of the United Kingdom

London is just one of the many places in the United Kingdom waiting to be discovered once you've taken in the sights of Southampton. Around 105 kilometres away to the north-east, its top attractions include The British Museum, Westminster Abbey and Big Ben.
Birmingham is another sought-after destination in the United Kingdom and is around 177 kilometres north of Southampton. No journey is complete without dropping by The Windsor Castle, Birmingham Museum & Art Gallery and Birmingham Hippodrome Theatre.