Cheap Flights from Southampton to Belfast

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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 to Belfast? 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 foundRs7,270
Cheapest month to flySeptember
Average flight time1 hr, 29 mins
Most popular airlineeasyJet
Average flights per week38

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 Rs16,082. 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 24 minutes is the average flight time from Southampton to Belfast.
easyJet, Aer Lingus and Emerald Airlines fly direct from Southampton to Belfast.
As of September 2025, there are 38 flights per week flying from Southampton to Belfast.
The cheapest month to fly from Southampton to Belfast is usually May.
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 Rs16,082.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Southampton Airport to Belfast on Friday, 1 May 2026.
Yes – the average flight time is 1 hour and 24 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 September, the average temperature is usually around 13°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.

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

  • Around 1 hour 15 minutes is how long you'll be travelling on a direct flight from Southampton Airport to Belfast.

  • Belfast and Southampton (where Southampton Airport is located) are both in the UTC+0 timezone. This means you won't have to change your watch when you arrive.

  • Southampton Airport (SOU) to George Best Belfast City Airport (BHD) is the most traveled route, with 17 weekly flights to choose from. If you prefer starting your day later, the last flight from SOU to BHD is with Aer Lingus at 19:45. Opt for the first departure with Aer Lingus at 08:55 if you want to get on your way earlier.

  • For hassle-free travel, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you enough time to board your SOU to Belfast flight.

  • Heading away during a peak period like school or public holidays? Expect longer queues at security and check-in. To be on the safe side, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Direct Southampton Airport to Belfast tickets are available for booking. Belfast International Airport (BFS) is where you'll be landing.

  • Look out for deals with Aer Lingus. This airline operates direct flights from Southampton Airport to Belfast.

  • Located around 6 kilometres from the centre of Southampton, SOU can be reached in about 20 minutes by car. The journey on public transport takes roughly 25 minutes.

  • Booked an early flight from Southampton Airport to Belfast? Avoid the stress of rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these stays near SOU:

  • When it comes to the on-time performance of Southampton Airport, 55.7% of flights stick to their scheduled arrival time.

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 Rs7,270. The cheapest price for a return flight is Rs16,082. Keep in mind fares can change due to demand at the time of booking.

  • Book one month before flying. Pricing trends show that this is the ideal window for finding cheap flights from SOU to Belfast.

  • The best month for landing cheap Southampton Airport to Belfast tickets is May. Use the 'Whole month' tool to compare flight prices, then select the dates that offer the biggest savings.

  • You don't need to check every day to see if fares have dropped when you set up a Price Alert. We'll notify you the moment there's an even better deal on cheap flights from SOU to Belfast.

  • Save on your flight from Southampton Airport to Belfast with the help of our filters. Choose your ideal duration, departure time and airlines, then sort the results by 'Cheapest' to see the best deals.

Airports in Belfast

Belfast International Airport (BFS)

  • Belfast International Airport (BFS) to central Belfast takes about 30 minutes to reach by car. The centre is roughly 32 kilometres away.

  • It takes around 2 hours if you're travelling by public transport.

  • Think about booking a hotel near BFS if you have a late flight from Southampton Airport to Belfast. Settle into one of these accommodation options and avoid the hassle of a long transfer:

  • Begin your adventure by picking up a Belfast International Airport rental car. Grab your wheels from Budget, Drivalia or Dollar to explore Belfast and beyond.

  • To secure the lowest price, book your vehicle from Belfast International Airport around three weeks ahead of your flight from SOU to Belfast.

George Best Belfast City Airport (BHD)

  • George Best Belfast City Airport (BHD) is around 8 kilometres from central Belfast. Once you've disembarked your flight from Southampton Airport to Belfast, it'll take you around 10 minutes to get to the heart of the city in a ride-share or cab.

  • If you travel by public transport, you'll get to the city centre in 20 minutes or so.

  • You'll find some comfortable places ready to welcome you near BHD. Settle in and get cosy after your SOU to Belfast flight at one of these well-located options:

  • The fastest way to get to where you're going is with a George Best Belfast City Airport rental car. Pick up your wheels from Budget, Sixt or Alamo and hit the road in a heartbeat.

  • Lock in the best price by securing your ride from BHD two weeks ahead of time. You'll also have access to a greater selection of vehicles.

Best time to go to Belfast

  • Visit Belfast during the high season if you prefer a bustling atmosphere, but remember that hotel prices tend to be higher. Alternatively, book your flights from Southampton Airport to Belfast in the low season when prices are cheaper and it's not as busy.

  • Before booking a Southampton Airport to Belfast flight ticket, think about what kind of weather you prefer. July is the warmest month in Belfast, with temperatures ranging from 10ºC to 19ºC.

  • Search for cheap tickets from SOU to Belfast in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 1ºC and 8ºC on average.

More about Belfast

  • After booking your flight from Southampton Airport to Belfast, choose a hotel that puts you where you want to be. Make one of these accommodation options your base for exploring Belfast:

  • There are so many things to discover in this city it can be hard to know where to start. Crumlin Road Gaol Visitor Attraction and Conference Centre, Titanic Belfast and Botanic Gardens are popular attractions which should feature on every Belfast itinerary.

Explore more of United Kingdom

  • Birmingham is just one of the many cities in United Kingdom waiting to be explored after you've experienced Belfast. Around 354 kilometres away to the south-east, popular attractions include Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • Around 418 kilometres south-east of Belfast, Bristol is another favourite stop in United Kingdom. Experience the best of this destination with a visit to Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

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