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Cheap Flights from Belfast (BFS) to London (LHR)

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Compare Belfast International to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Belfast International to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Belfast International to London Heathrow? Find the lowest prices on one-way and return tickets right here.
London.$364 per passenger.Departing Tue, 15 Jul, returning Tue, 22 Jul.Return flight with easyJet and British Airways.Outbound indirect flight with easyJet, departs from Belfast International on Tue, 15 Jul, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Tue, 22 Jul, arriving in Belfast International.Price includes taxes and charges.From $364, select.
London.$371 per passenger.Departing Wed, 6 Aug, returning Wed, 13 Aug.Return flight with Ryanair and British Airways.Outbound indirect flight with Ryanair, departs from Belfast International on Wed, 6 Aug, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Wed, 13 Aug, arriving in Belfast International.Price includes taxes and charges.From $371, select.
London.$384 per passenger.Departing Fri, 5 Dec, returning Sun, 7 Dec.Return flight with easyJet and British Airways.Outbound indirect flight with easyJet, departs from Belfast International on Fri, 5 Dec, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Sun, 7 Dec, arriving in Belfast International.Price includes taxes and charges.From $384, select.
London.$400 per passenger.Departing Fri, 24 Oct, returning Mon, 3 Nov.Return flight with Ryanair and British Airways.Outbound indirect flight with Ryanair, departs from Belfast International on Fri, 24 Oct, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Mon, 3 Nov, arriving in Belfast International.Price includes taxes and charges.From $400, select.
London.$407 per passenger.Departing Fri, 12 Sep, returning Sun, 14 Sep.Return flight with Ryanair and British Airways.Outbound indirect flight with Ryanair, departs from Belfast International on Fri, 12 Sep, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Sun, 14 Sep, arriving in Belfast International.Price includes taxes and charges.From $407, select.
London.$437 per passenger.Departing Sat, 14 Jun, returning Sun, 15 Jun.Return flight with easyJet and British Airways.Outbound indirect flight with easyJet, departs from Belfast International on Sat, 14 Jun, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Sun, 15 Jun, arriving in Belfast International.Price includes taxes and charges.From $437, select.
London.$707 per passenger.Departing Fri, 27 Jun, returning Fri, 4 Jul.Return flight with easyJet and British Airways.Outbound indirect flight with easyJet, departs from Belfast International on Fri, 27 Jun, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Fri, 4 Jul, arriving in Belfast International.Price includes taxes and charges.From $707, select.

The cheapest month to fly from Belfast International Airport to London Heathrow Airport

We’re always keeping an eye on fares, to help you find the lowest one in seconds. Check out the Belfast International Airport to London Heathrow Airport flight prices forecast over the next 12 months.
Jun
from $437
Jul
from $364
Aug
from $371
Sep
from $407
Oct
Find prices
Nov
Find prices
Dec
from $384
Jan
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Feb
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Mar
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Apr
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May
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Cheapest month:July
Most expensive month:June

Belfast International to London Heathrow: Alternative routes

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

Belfast to London: Flight information

The things to know before you go.
Cheapest flight found$364
Cheapest month to flyJuly

Finding cheap flights from Belfast International to London Heathrow: Frequently asked questions

The best price we found for a return flight from Belfast International to London Heathrow is $364. 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.
Currently, there are no airlines that fly direct from Belfast International to London Heathrow. But we found flights with one or more stops from $364.
As of June 2025, there are no flights flying from Belfast International to London Heathrow.
The cheapest month to fly from Belfast International to London Heathrow 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 London Heathrow Airport on Tuesday, 15 July 2025.
No airlines currently offer direct flights between Belfast International Airport and London Heathrow Airport. Most routes have one or more stops.
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 London Heathrow 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 London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, easyJet offers the cheapest flight tickets to London Heathrow.

Flying from Belfast International Airport (BFS) to London Heathrow Airport (LHR): what you need to know

  • Belfast and London are both in the UTC+0 timezone. That means you won't have to change your watch on arrival.

  • Give yourself plenty of time to make your BFS to LHR flight. Generally, it's best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak time like August? Major public holidays and other popular periods can result in longer lines at check-in and security. Play things extra safe and get there up to four hours ahead of an international flight and two hours before a domestic departure.

  • We make it easy to book a flight with a stopover. To see your options for tickets from Belfast International Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, pick a flight with a stop long enough to explore your chosen city. Top stopovers between BFS and LHR include:

    • Edinburgh Airport

    • Manchester Airport

    • Jersey Airport

How to find the cheapest flights from Belfast International Airport (BFS) to London Heathrow Airport (LHR)

  • $146 is currently the best price for a one-way Belfast International Airport to London Heathrow Airport flight. Return flights start from $364. These prices can change depending on availability.

  • To score cheap tickets from BFS to LHR, book ahead. Airlines generally offer the most competitive fares when flights are first released.

  • The 'Whole month' search tool shows you the cheapest flights from Belfast International Airport to London Heathrow Airport across the entire month. It's an easy way to snap up a bargain if your trip dates aren't set in stone.

  • Landing cheap flights from BFS to LHR couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when there's a better deal.

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

Handy information about Belfast International Airport (BFS)

  • Of the flights that depart from Belfast International Airport, 67.55% land on time at their destination.

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

  • The journey on public transport takes roughly 2 hours.

  • Get your travels off to a hassle-free start by staying near BFS. Whether you're boarding an early flight from Belfast International Airport to London Heathrow Airport or just don't like being rushed, these hotels have you covered:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is roughly 31 kilometres from central London. Driving there takes about 55 minutes.

  • It'll take around 1 hour to get there by public transport.

When to fly to London Heathrow Airport (LHR)

  • July is the busiest month for flights from Belfast International Airport to London Heathrow Airport. To skip the crowds, travel to London in February.

  • The warmest month in London is July, with the temperature ranging between 11ºC (52ºF) and 26ºC (79ºF). Lock in your flights from Belfast International Airport to London Heathrow Airport in this month if you like this kind of weather.

  • January sees average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Look for cheap tickets from BFS to LHR sometime around then if you want to travel in cooler conditions.

Explore more of United Kingdom

  • You've seen London, now it's time to explore other parts of United Kingdom. Travel about 161 kilometres north-west to Birmingham to check off its top sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, your itinerary will be busy.

  • Around 177 kilometres west of London, Bristol is another favourite stop in United Kingdom. Experience major highlights starting with Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Plan the rest of your trip from Belfast to London

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