Cheap Flights from Belfast International to Southampton

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Compare Belfast International to Southampton flight deals

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

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Flight deals from Belfast International to Southampton

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

Find the cheapest month to fly from Belfast International to Southampton

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

Direct flights from Belfast International to Southampton

Belfast International to Southampton: Alternative routes

Compare routes from Belfast International 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 found42 €
Cheapest month to flyOctober
Average flight time1 hr, 15 mins
Most popular airlineeasyJet
Average flights per week5

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

The best price we found for a return flight from Belfast International to Southampton is 42 €. 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 Belfast International to Southampton.
easyJet flies direct from Belfast International to Southampton.
As of June 2025, there are 5 flights per week flying from Belfast International to Southampton.
The cheapest month to fly from Belfast International to Southampton is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Belfast International Airport to Southampton Airport on Thursday, 16 October 2025.
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 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.
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.
Currently, easyJet offers the cheapest flight tickets to Southampton.

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

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

  • Belfast and Southampton share the same timezone, UTC+0.

  • Flights from BFS to SOU start from 07:20 — the first with easyJet. The last service of the day is at 19:40 with easyJet. In total, you can take your pick of 30 weekly Belfast International Airport to Southampton Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Get to the airport on time to board your BFS to SOU flight.

  • During popular months such as August, you'll want to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead for an international flight whenever you're travelling during peak periods in general.

  • Getting to Southampton (and then discovering more of United Kingdom!) is a breeze with easyJet. This popular carrier offers direct flights from Belfast International Airport to Southampton Airport.

  • The airline with the highest booking volume on this route is easyJet.

  • Think about adding a stopover when booking your ticket from Belfast International Airport to Southampton Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here's where you can stop between BFS and SOU:

    • Edinburgh Airport

    • Jersey Airport

    • Newcastle International Airport

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

  • 21 € is the lowest price for a one-way Belfast International Airport to Southampton Airport flight. A return flight starts from 42 €. These prices may change based on demand and availability.

  • To pick up cheap tickets from BFS to SOU, book your trip six months ahead of your departure date.

  • Organise your trip for May. That's the cheapest month for flights from Belfast International Airport to Southampton Airport. If you're flexible on when you fly, use the 'Whole month' tool to find the lowest airfare across each month.

  • You don't need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you as soon as there's a better deal on cheap flights from BFS to SOU.

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

Handy information about Belfast International Airport (BFS)

  • When it comes to the on-time performance of Belfast International Airport, data shows 67.55% of flights arrive within the expected timeframe.

  • To get to Belfast International Airport from central Belfast, it'll take about 30 minutes by car. Of course, this depends on traffic. It's approximately 32 kilometres from the airport to the city centre.

  • The journey when using public transport will take about 2 hours.

  • Get your holiday off to a leisurely start by staying near BFS. Whether you're taking an early flight from Belfast International Airport to Southampton Airport or just don't like being rushed, these stays have you covered:

Arriving at Southampton Airport (SOU)

Getting from Southampton Airport (SOU) to central Southampton

  • Southampton Airport to central Southampton has a drive time of around 20 minutes. It's approximately 8 kilometres away.

  • It takes around 25 minutes if you're using public transport.

When to fly to Southampton Airport (SOU)

  • The quietest month for a flight from Belfast International Airport to Southampton Airport is April, while August is the most popular. Pick the ideal time to visit Southampton based on whether you prefer a faster pace or a more relaxed vibe.

  • Lock in your flight from Belfast International Airport to Southampton Airport for July if you'd like to visit Southampton during its warmest month. Expect temperatures of between 11ºC (52ºF) and 24ºC (75ºF).

  • If you like cooler conditions, search for a cheap ticket from BFS to SOU in January. Average temperatures are between 0ºC (32ºF) and 9ºC (48ºF) then.

Explore more of United Kingdom

  • London is just one of the many places in United Kingdom waiting to be discovered once you've seen the sights of Southampton. Around 113 kilometres away to the north-east, well-known attractions include Big Ben, The British Museum and Buckingham Palace.

  • Around 177 kilometres north of Southampton, Birmingham is another favourite stop in United Kingdom. Experience this destination's highlights firsthand at Cadbury World, The Library of Birmingham and National Sea Life Centre.

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