Flight tickets from Southampton to Belfast International

Compare Southampton to Belfast International flight deals

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

Book the best Belfast International fare with no extra fees

Flight deals from Southampton Airport to Belfast International Airport

Looking for a cheap last-minute deal or the best return flight from Southampton Airport to Belfast International Airport? If you want to travel next month, return fares start from ₹ 5,917. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Southampton to Belfast International

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

Direct flights from Southampton to Belfast International

Southampton to Belfast International: Alternative routes

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

Southampton to Belfast: Flight information

The things to know before you go.
Cheapest flight found₹ 2,589
Cheapest month to flyMarch
Average flight time1 hr, 15 mins
Most popular airlineeasyJet
Average flights per week4

Finding cheap flights from Southampton to Belfast International: Frequently asked questions

The best price we found for a return flight from Southampton to Belfast International is ₹ 5,116. 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 15 minutes is the average flight time from Southampton to Belfast International.
easyJet flies direct from Southampton to Belfast International.
As of March 2026, there are 4 flights per week flying from Southampton to Belfast International.
The cheapest month to fly from Southampton to Belfast International is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Southampton Airport to Belfast International Airport on Monday, 1 June 2026.
Yes – the average flight time is 1 hour and 15 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 International 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.
Currently, easyJet offers the cheapest flight tickets to Belfast International.

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

  • Around 1 hour 20 minutes is how long you'll be travelling on a direct flight from Southampton Airport to Belfast International Airport.

  • Southampton and Belfast are both in the UTC+0 timezone. This means you won't need to account for any time differences.

  • Each week, there are 25 Southampton Airport to Belfast International Airport flights. If you prefer to get going as early as possible, jump on the 09:10 easyJet flight. If you'd rather make the most of your day before you fly, the last departure is at 21:35 with easyJet.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to catch your SOU to BFS flight.

  • Flying during a peak month such as August? Public holidays and other popular periods can mean longer queues and delays at security. Play it safe and get there up to four hours before an international flight and two hours before domestic departures.

  • Jetting into Belfast (and then seeing more of United Kingdom!) is easy with easyJet. This popular carrier has direct flights from Southampton Airport to Belfast International Airport.

  • The airline that tops the list for bookings on this route is easyJet.

  • If you'd like to add a stop to your trip, simply deselect 'Direct flights only' when searching for your ticket from Southampton Airport to Belfast International Airport. Here are the top stopovers between SOU and BFS:

    • Edinburgh Airport

    • Jersey Airport

    • Newcastle International Airport

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

  • ₹ 2,589 is currently the lowest price for a one-way Southampton Airport to Belfast International Airport flight. A return flight starts from ₹ 5,116. These fares may change based on demand.

  • Score cheap tickets from SOU to BFS by booking at least six months ahead. According to our research, that's the sweet spot for landing a bargain.

  • The cheapest month for flights from Southampton Airport to Belfast International Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have a flexible travel schedule.

  • There's no need to check back in every day to find out if fares have dropped when you create a Price Alert. We'll let you know the moment there's a change in price on cheap flights from SOU to BFS.

  • Pick your ideal departure and arrival times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Southampton Airport to Belfast International Airport.

Handy information about Southampton Airport (SOU)

  • 55.7% of flights taking off from Southampton Airport make it to their destination on time.

  • To reach Southampton Airport from central Southampton, it takes around 20 minutes if you're planning to drive. This depends on traffic though. It's approximately 8 kilometres from the airport to the city centre.

  • Expect a journey time of around 25 minutes when using public transport.

  • Have an early flight from Southampton Airport to Belfast International Airport? Avoid rushing to the terminal (and get some extra shut-eye) by choosing one of these stays near SOU:

Arriving at Belfast International Airport (BFS)

Getting from Belfast International Airport (BFS) to central Belfast

  • Belfast International Airport is roughly 32 kilometres from central Belfast. The drive time takes about 30 minutes.

  • If you're travelling by public transport, expect a journey time of around 2 hours.

When to fly to Belfast International Airport (BFS)

  • It's time to plan your dates for your flight from Southampton Airport to Belfast International Airport. August is the busiest month to visit Belfast. If you want a more laid-back vibe, go in January.

  • The warmest month in Belfast is July, with temperatures ranging between 10ºC and 19ºC. Lock in your flights from Southampton Airport to Belfast International Airport in this month if this is the type of weather you enjoy.

  • January has average temperatures of between 1ºC and 8ºC. Look for cheap tickets from SOU to BFS around that time if you want to travel in cooler conditions.

Explore more of United Kingdom

  • You've done Belfast, now it's time to discover more of United Kingdom. Travel about 354 kilometres south-east to Birmingham to check off its popular sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, there's plenty to keep you busy.

  • If you're interested in discovering another well-known destination in United Kingdom, head for Bristol, about 418 kilometres south-east of Belfast. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are among its highlights.

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