Cheap Flights from Belfast International to London Heathrow

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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.

Find the cheapest month to fly from Belfast International to London Heathrow

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

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 foundR 1,579
Cheapest month to flyMay

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 R 3,569. 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 R 3,569.
As of March 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 March 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, 27 May 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

  • You can expect longer queues during popular months like August and other peak periods. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a smart move.

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

    • Jersey Airport

    • Glasgow International Airport

    • Manchester Airport

  • When flying within United Kingdom, you won't need a visa or passport. However, you'll have to bring some kind of identification, like a driver's license or ID card. Once you've booked your cheap ticket from BFS to LHR, check your ID is valid before you fly.

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

  • The best price we've found for a one-way ticket from Belfast International Airport to London Heathrow Airport is R 1,579. The cheapest price for a return flight is R 3,569. Keep in mind that fares can change due to demand when booking.

  • It's a good idea to book ahead of time if you want to get cheap tickets from BFS to LHR. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • Finding cheap tickets from Belfast International Airport to London Heathrow Airport is more likely if you're flexible with your travel plans. Use the 'Whole month' tool to see the lowest prices across the month and score a great deal.

  • Snapping up a cheap ticket from BFS to LHR is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when the price has fallen.

  • Use filters to tailor your flights from Belfast International Airport to London Heathrow Airport. Simply select your preferred arrival and departure times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to get the best deals.

Handy information about Belfast International Airport (BFS)

  • Travelling from central Belfast to Belfast International Airport takes around 2 hours and 2 minutes on public transport. If you drive, ride-share or get a cab, you'll cover the 32 kilometres in 31 minutes or so, depending on traffic conditions.

  • Booked an early flight from Belfast International Airport to London Heathrow Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels near BFS:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • From London Heathrow Airport, London is approximately 31 kilometres away. It takes around 57 minutes to get to the centre driving.

  • It typically takes 1 hour and 1 minute if you're travelling on public transport.

When to fly to London Heathrow Airport (LHR)

  • It's time to work out your trip dates for your flight from Belfast International Airport to London Heathrow Airport. July is the most popular month to visit London. If you want a more relaxed vibe, go in February.

  • Lock in your flight from Belfast International Airport to London Heathrow Airport for July if you'd like to visit London during its warmest month. Expect temperatures of between 11ºC and 26ºC.

  • Search for cheap tickets from BFS to LHR in January if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC and 9ºC on average.

More about London

Complete your London trip with hotels and a car rental

  • You've got your cheap ticket to London Heathrow Airport — now it's time to find a place to stay, and maybe even a set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in London.

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