121 € Cheap Flights from London Heathrow to Belfast

Compare London Heathrow to Belfast flight deals

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

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Flight deals from London Heathrow to Belfast

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Belfast? If you want to travel next month, return fares start from 123 €. Find the lowest prices on one-way and return tickets right here.

Belfast.121 € per passenger.Departing Wed, 16 Sep, returning Wed, 14 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 16 Sep, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Wed, 14 Oct, arriving in London Heathrow.Price includes taxes and charges.From 121 €, select.

Belfast.121 € per passenger.Departing Wed, 2 Sep, returning Wed, 9 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 2 Sep, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Wed, 9 Sep, arriving in London Heathrow.Price includes taxes and charges.From 121 €, select.

Belfast.123 € per passenger.Departing Thu, 2 Jul, returning Wed, 15 Jul.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 2 Jul, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Wed, 15 Jul, arriving in London Heathrow.Price includes taxes and charges.From 123 €, select.

Belfast.124 € per passenger.Departing Tue, 1 Dec, returning Sat, 26 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 1 Dec, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Sat, 26 Dec, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Thu, 7 Jan, returning Mon, 11 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 7 Jan, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Mon, 11 Jan, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Tue, 27 Oct, returning Fri, 6 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 27 Oct, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Fri, 6 Nov, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Tue, 2 Feb, returning Tue, 9 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 2 Feb, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Tue, 9 Feb, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Sun, 15 Nov, returning Mon, 15 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 15 Nov, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Mon, 15 Mar, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Tue, 16 Mar, returning Sun, 21 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 16 Mar, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Sun, 21 Mar, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Sat, 10 Oct, returning Wed, 14 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 10 Oct, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Wed, 14 Oct, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Sun, 20 Dec, returning Sun, 3 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 20 Dec, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Sun, 3 Jan, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.124 € per passenger.Departing Sun, 10 Jan, returning Sun, 18 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sun, 10 Jan, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Sun, 18 Apr, arriving in London Heathrow.Price includes taxes and charges.From 124 €, select.

Belfast.125 € per passenger.Departing Tue, 21 Jul, returning Sat, 12 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 21 Jul, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Sat, 12 Sep, arriving in London Heathrow.Price includes taxes and charges.From 125 €, select.

Belfast.125 € per passenger.Departing Tue, 20 Apr, returning Tue, 27 Apr.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 20 Apr, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Tue, 27 Apr, arriving in London Heathrow.Price includes taxes and charges.From 125 €, select.

Belfast.126 € per passenger.Departing Sat, 29 Aug, returning Wed, 2 Sep.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Sat, 29 Aug, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Wed, 2 Sep, arriving in London Heathrow.Price includes taxes and charges.From 126 €, select.

Belfast.127 € per passenger.Departing Tue, 28 Jul, returning Wed, 12 Aug.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Tue, 28 Jul, arriving in Belfast City.Inbound direct flight with British Airways departs from Belfast City on Wed, 12 Aug, arriving in London Heathrow.Price includes taxes and charges.From 127 €, select.

Find the cheapest month to fly from London Heathrow to Belfast

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

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Direct flights from London Heathrow to Belfast

Alternative London Heathrow to Belfast routes

Looking for the cheapest, fastest or easiest route from London Heathrow to Belfast? You could fly into the following airports instead.

Belfast City

4km from central Belfast

ClosestCheapest

from 121 €

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Belfast International

20km from central Belfast

from 191 €

Search flights

London to Belfast: Flight information

The things to know before you go.

Cheapest flight found	121 €
Cheapest month to fly	September
Average flight time	1 hr, 25 mins
Most popular airline	British Airways
Average flights per week	315

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

How many airports are there in Belfast?

There are 2 airports in Belfast: Belfast City and Belfast International.

How much are return flights from London Heathrow to Belfast?

The best price we found for a return flight from London Heathrow to Belfast is 121 €. 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.

How long does it take to fly from London Heathrow to Belfast?

1 hour and 25 minutes is the average flight time from London Heathrow to Belfast.

Which airlines fly direct from London Heathrow to Belfast?

British Airways, Aer Lingus and Qatar Airways fly direct from London Heathrow to Belfast.

How many flights are there a week from London Heathrow to Belfast?

As of June 2026, there are 343 flights per week flying from London Heathrow to Belfast.

When is the cheapest time to fly from London Heathrow to Belfast?

The cheapest month to fly from London Heathrow to Belfast is usually September.

Which is the cheapest airport to fly into in Belfast?

If you're flying from London Heathrow Airport, the cheapest airport near Belfast is Belfast City – which is 3.7 km away from the centre of Belfast. We've found flights into this airport from 121 €.

Which upcoming date is cheapest to fly from London Heathrow Airport to Belfast on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Belfast on Wednesday, 2 September 2026.

Can I get a direct flight from London Heathrow Airport to Belfast?

Yes – the average flight time is 1 hour and 25 minutes.

How can I get the best flight deal from London Heathrow Airport to Belfast?

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.

When is the best time to book flights to Belfast?

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.

What’s the weather like in Belfast?

In June, the average temperature is usually around 12°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.

Which is the cheapest airline to fly from London Heathrow Airport to Belfast with?

Currently, British Airways offers the cheapest flight tickets to Belfast.

Travelling from London Heathrow Airport (LHR) to Belfast: what you need to know

Belfast's timezone is UTC+0, which is the same as London (the location of London Heathrow Airport).
London Heathrow Airport (LHR) to George Best Belfast City Airport (BHD) is the most popular route, with 43 departures a week to choose from. If you have things to finalize before heading off, the last flight from LHR to BHD is with British Airways at 19:20. Opt for the first departure with British Airways at 06:05 if you want to get on your way earlier.
Give yourself plenty of time to catch your LHR to Belfast flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.
You can expect longer lines in popular months such as July. Arriving up to four hours ahead of international flights and two hours for domestic departures is a smart move.
You can book a direct London Heathrow Airport to Belfast ticket. Begin your trip at LHR and end it at George Best Belfast City Airport (BHD).
Be on the lookout for deals with British Airways. This carrier operates direct flights from London Heathrow Airport to Belfast.
LHR is about 26 kilometres from central London. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 45 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 25 minutes.
Want a hassle-free start to your holiday? Stay near LHR. Whether you have an early flight from London Heathrow Airport to Belfast or want to avoid feeling rushed, these hotels have you covered:
Of all flights leaving London Heathrow Airport, 78% touch down on time at their destination.

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

61 € is the cheapest price we've seen for a one-way London Heathrow Airport to Belfast flight. A return plane ticket right now is 121 €. Depending on how early you book and the availability, these fares could change.
Book six months before your departure date. Pricing trends show that this is the ideal window for finding cheap flights from LHR to Belfast.
The best month for finding cheap London Heathrow Airport to Belfast tickets is November. Use the 'Whole month' tool to compare all available prices, then choose the dates that offer the lowest fares.
Locking in a cheap flight from LHR to Belfast is a breeze with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you as soon as a deal gets even better.
Save on your flight from London Heathrow Airport to Belfast with the help of our filters. Choose your ideal times, number of stops 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 the centre of Belfast takes about 25 minutes to reach by car. The centre is roughly 19 kilometres away.
It'll take around 45 minutes when travelling by public transport.
If you're arriving on a late flight from London Heathrow Airport to Belfast, few things beat the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping not long after at one of these accommodation options near BFS:
For the best deal, reserve your ride from Belfast International Airport around three weeks ahead of your flight from LHR to Belfast.

George Best Belfast City Airport (BHD)

Once your flight from London Heathrow Airport to Belfast has arrived, you can make your way to the city centre in about 15 minutes by car. Central Belfast is roughly 5 kilometres from George Best Belfast City Airport (BHD).
Travelling by public transport will take around 25 minutes.
You'll find some comfortable places to park your luggage (and yourself) near BHD. Tuck yourself in and get cosy after your LHR to Belfast flight at any of these well-located options:
Get exactly what you want. Booking your ride from BHD two weeks ahead of time often means lower prices and a greater range of vehicles.

Best time to go to Belfast

September is the most popular month for flights from London Heathrow Airport to Belfast. To steer clear of the crowds, head to Belfast in January.
Book a London Heathrow Airport to Belfast plane ticket with a departure in July if you're eager to visit the city during its warmest month. You can expect temperatures to range from 9ºC (48ºF) to 19ºC (66ºF).
January has average temperatures of between 1ºC (34ºF) and 8ºC (46ºF). Look for a cheap ticket from LHR to Belfast around that time if you want to travel when it's cooler.

More about Belfast

When it comes to searching for somewhere to rest your head, you'll find the top stays in Belfast right here. Explore these options as soon as you've booked your flight from London Heathrow Airport to Belfast:
There are so many things to discover in this city it can be tricky to work out where to start. Titanic People, Titanic Shipyard and Titanic Belfast are top sights which should be on any well-planned Belfast itinerary.

Explore more of the United Kingdom

Manchester is just one of the many cities in the United Kingdom waiting to be explored once you've seen the sights of Belfast. Around 274 kilometres away to the southeast, popular attractions include Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
If there's time to check out another major destination in the United Kingdom, head for Birmingham, about 354 kilometres southeast of Belfast. Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience are key highlights.