Flight tickets from Southampton to Belfast

Compare Southampton to Belfast flight deals

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

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Flight deals from Southampton to Belfast

Looking for a cheap last-minute deal or the best return flight from Southampton Airport to Belfast? If you want to travel next month, return fares start from ₹ 8,413. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Southampton to Belfast

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

Direct flights from Southampton to Belfast

Alternative Southampton to Belfast routes

Looking for the cheapest, fastest or easiest route from Southampton to Belfast? You could fly into the following airports instead.

Southampton to Belfast: Flight information

The things to know before you go.
Cheapest flight found₹ 2,840
Cheapest month to flySeptember
Average flight time1 hr, 26 mins
Most popular airlineAer Lingus
Average flights per week45

Finding cheap flights from Southampton to Belfast: Frequently asked questions

There are 2 airports in Belfast: Belfast City and Belfast International.
The best price we found for a return flight from Southampton to Belfast is ₹ 5,809. 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.
1 hour and 25 minutes is the average flight time from Southampton to Belfast.
Aer Lingus, British Airways and easyJet fly direct from Southampton to Belfast.
As of May 2026, there are 45 flights per week flying from Southampton to Belfast.
The cheapest month to fly from Southampton to Belfast is usually September.
If you're flying from Southampton Airport, the cheapest airport near Belfast is Belfast International – which is 19.6 km away from the centre of Belfast. We've found flights into this airport from ₹ 5,809.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Southampton Airport to Belfast on Sunday, 20 September 2026.
Yes – the average flight time is 1 hour and 25 minutes.
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 Belfast 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.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Belfast is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 10°C. August is typically the warmest month in Belfast, when it usually averages around 17°C. You can expect the least rain in May. The coldest month is January, with temperatures averaging 4°C. The rainiest month is October.
Currently, easyJet offers the cheapest flight tickets to Belfast.

Flying from Southampton Airport (SOU) to Belfast: what you need to know

  • Expect to be in the air for 1 hour 15 minutes. That's the average time for a direct flight from Southampton Airport to Belfast.

  • Southampton (the location of Southampton Airport) and Belfast share the same timezone — UTC+0.

  • The most popular route is from Southampton Airport (SOU) to George Best Belfast City Airport (BHD). You can choose from 17 services every week between these two airports. If you'd like to get on your way as soon as possible, the earliest flight from SOU to BHD is the 08:55 Aer Lingus service. If you'd rather fly out later on, the last departure is at 19:45 with Aer Lingus.

  • Allow plenty of time to make your SOU to Belfast flight. As a rule of thumb, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak time such as July? Major public holidays and other popular seasons can lead to longer lines and delays at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • You can book a direct Southampton Airport to Belfast ticket. Start your trip at SOU and land at Belfast International Airport (BFS).

  • Keep your eyes peeled for promotions from Aer Lingus. This airline operates direct flights from Southampton Airport to Belfast.

  • Travelling from central Southampton to SOU takes around 25 minutes on public transport. If you ride-share, drive or grab a taxi, you'll cover the 6 kilometres in 15 minutes or so, depending on traffic conditions.

  • Want an easy start to your journey? Stay near SOU. Whether you've booked an early flight from Southampton Airport to Belfast or just don't want to be rushed, these hotels put convenience first:

  • Of the flights that depart from Southampton Airport, 72% arrive as scheduled at their destination.

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

  • The lowest price we've found for a one-way Southampton Airport to Belfast flight is ₹ 2,840. The cheapest price for a return flight is ₹ 5,809. Bear in mind fares may change due to availability at the time of booking.

  • To pick up cheap flights from SOU to Belfast, book ahead. Airlines generally offer the most competitive fares when flights first go on sale.

  • If you can be flexible with your travel dates, take advantage of the 'Whole month' search tool. It'll find the lowest price across every month when looking for your Southampton Airport to Belfast ticket.

  • You don't need to check in daily to see if fares have dropped when you create a Price Alert. We'll update you as soon as there's an extra saving on cheap flights from SOU to Belfast.

  • Choose your ideal arrival and departure times, number of stops and airlines with our filters. Then, sort the results for your flight from Southampton Airport to Belfast by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) is around 19 kilometres from central Belfast. If you're opting for a ride-share or a taxi, the drive will take roughly 25 minutes.

  • Getting to the centre on public transport takes about 45 minutes.

  • Think about booking a hotel close to BFS if you have a late flight from Southampton Airport to Belfast. Settle into one of these accommodation options and make your arrival easier:

  • Lock in the best deal by booking your vehicle from Belfast International Airport around three weeks ahead of your flight from SOU to Belfast.

George Best Belfast City Airport (BHD)

  • Once your flight from Southampton Airport to Belfast has landed, you can reach the city centre in about 15 minutes by car. Central Belfast is roughly 5 kilometres from George Best Belfast City Airport (BHD).

  • The journey will take roughly 25 minutes on public transport.

  • There are some great places to call home for the night near BHD. Kick back and get cosy after your SOU to Belfast flight at one of these well-located options:

  • Don't pay more than you need to. Booking your ride two weeks ahead of your arrival at BHD can get you a lower rate.

Best time to go to Belfast

  • September is the most popular month for flights from Southampton Airport to Belfast. To avoid the crowds, head to Belfast in January.

  • Before booking a Southampton Airport to Belfast plane ticket, think about what kind of weather you prefer. July is the warmest month in Belfast, with temperatures ranging from 9ºC to 19ºC.

  • For cooler conditions, look for a cheap ticket from SOU to Belfast in January when temperatures average between 1ºC and 8ºC.

More about Belfast

  • Start your Belfast trip off on the right foot by choosing the perfect place to stay. After booking your flight from Southampton Airport to Belfast, check out our selection of hotels including:

  • There are so many things to discover in this city it can be tricky to work out where to begin. Titanic People, Titanic Shipyard and Titanic Belfast are highlights which should be on any well-planned Belfast itinerary.

Explore more of the United Kingdom

  • Belfast is always a good idea, but there are so many other parts of the United Kingdom you should also see. Around 274 kilometres southeast of Belfast, a visit to Manchester will keep you on the go. Don't miss top attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.

  • If you're eager to discover another great destination in the United Kingdom, head for Birmingham, about 354 kilometres southeast of Belfast. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.