£45 Find Cheap Flights from London Heathrow Airport to Belfast – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Belfast departing on 4/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Belfast, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest return fare
£84
Typical prices: £93-£159
British Airways
Fri 20/11Mon 23/11
LHR - BHD • Direct
Cheapest one-way flight
£45
Typical prices: £66-£201
British Airways
Fri 4/9
LHR - BHD • Direct
Direct flights
You can fly direct with British Airways. Average duration is 1h 22m
Direct flights
Direct flights
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+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 34% average savings
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 48% compared to booking last minute.
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Belfast (LHR-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Belfast

Fri, 20 Nov - Mon, 23 Nov
British Airways Logo
08:55 - 10:20
LHR
-
BHD
1h 25mdirect
British Airways Logo
11:30 - 13:00
BHD
-
LHR
1h 30mdirect
£84British Airways
Thu, 1 Oct - Thu, 8 Oct
British Airways Logo
07:30 - 08:50
LHR
-
BHD
1h 20mdirect
British Airways Logo
12:45 - 14:10
BHD
-
LHR
1h 25mdirect
£92British Airways
Wed, 16 Sep - Fri, 25 Sep
British Airways Logo
07:40 - 09:00
LHR
-
BHD
1h 20mdirect
British Airways Logo
20:10 - 21:25
BHD
-
LHR
1h 15mdirect
£99British Airways
Thu, 15 Oct - Thu, 22 Oct
British Airways Logo
18:30 - 19:50
LHR
-
BHD
1h 20mdirect
British Airways Logo
06:30 - 07:55
BHD
-
LHR
1h 25mdirect
£101British Airways
Thu, 13 Aug - Mon, 17 Aug
British Airways Logo
07:30 - 08:50
LHR
-
BHD
1h 20mdirect
British Airways Logo
19:35 - 20:50
BHD
-
LHR
1h 15mdirect
£102British Airways
Tue, 1 Sep - Wed, 9 Sep
British Airways Logo
07:30 - 08:50
LHR
-
BHD
1h 20mdirect
British Airways Logo
20:35 - 21:50
BHD
-
LHR
1h 15mdirect
£105British Airways
Wed, 9 Sep - Mon, 14 Sep
British Airways Logo
07:40 - 09:00
LHR
-
BHD
1h 20mdirect
British Airways Logo
19:35 - 20:50
BHD
-
LHR
1h 15mdirect
£105British Airways
Wed, 5 Aug - Tue, 11 Aug
British Airways Logo
07:40 - 09:00
LHR
-
BHD
1h 20mdirect
British Airways Logo
20:25 - 21:40
BHD
-
LHR
1h 15mdirect
£106British Airways
Thu, 13 Aug - Mon, 17 Aug
Multiple Airlines Logo
06:15 - 15:05
LHR
-
BFS
8h 50m
2 stops
Multiple Airlines Logo
14:40 - 21:25
BFS
-
LHR
6h 45m
1 stop
£238Multiple Airlines
Fri, 14 Aug - Mon, 17 Aug
Multiple Airlines Logo
17:35 - 22:50
LHR
-
BFS
5h 15m
1 stop
Multiple Airlines Logo
20:35 - 07:55
BFS
-
LHR
11h 20m
1 stop
£242Multiple Airlines
Booking Insights

KAYAK’s insights & trends for Heathrow to Belfast flights

Get data-powered insights and trends into flights from Heathrow to Belfast to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from London Heathrow Airport to Belfast?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London Heathrow Airport to Belfast departing in November.

What is the cheapest London Heathrow Airport to Belfast flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London Heathrow Airport to Belfast costs £97 on the route between London Heathrow Airport (LHR) and Belfast City Airport (BHD). Over the past month, this route was, on average, 34% cheaper than other London Heathrow Airport-Belfast routes. It is also the most popular route.

What’s the cheapest day of the week to fly from London Heathrow Airport to Belfast?

The average price of all round-trip flights from London Heathrow Airport to Belfast clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from London Heathrow Airport to Belfast, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Belfast, Friday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from London Heathrow Airport to Belfast?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Belfast, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to Belfast is May, where tickets cost £24 (return) on average. On the other hand, the most expensive months are August and June, where the average cost of round-trip tickets is £86 and £53 respectively.

How far in advance should I book a flight from London Heathrow Airport to Belfast?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Belfast, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Heathrow Airport to Belfast, you should book around 5 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know - Cheap tickets from London Heathrow Airport to Belfast

Cheapest flight£45
Flight from London Heathrow Airport to Belfast City Airport

When to book flights from Heathrow to Belfast

Are your dates flexible? Find out the best times to travel from Heathrow to Belfast based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Heathrow Airport to Belfast flights

  • What is the cheapest flight from London Heathrow Airport to Belfast?

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Belfast was £45 for a one-way ticket and £84 for a return.

  • Which airports will I be using when flying from London Heathrow Airport to Belfast?

    When flying out of London Heathrow Airport you will be using London Heathrow. You will be landing at one of these airports: Belfast Intl or Belfast City.

  • Which aircraft models fly most regularly from London Heathrow Airport to Belfast?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London Heathrow Airport to Belfast?

    oneworld is the only airline alliance operating flights between London Heathrow Airport and Belfast.

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Belfast?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Belfast.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Belfast?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from London Heathrow Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Belfast?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Belfast with an airline and back to London Heathrow Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Belfast?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from London Heathrow Airport to Belfast?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London Heathrow to Belfast.
Find which airlines fly direct from London Heathrow Airport to Belfast, which days they fly and book direct flights.

Direct departures

London Heathrow to Belfast

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

Belfast to London Heathrow

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top 3 airlines flying from Heathrow to Belfast

 
See real verified KAYAK customer reviews for airlines flying from London to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Heathrow to Belfast? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.9
easyJetOverall score based on 1912 reviews
7.7Crew
5.5Entertainment
5.9Food
6.8Comfort
6.7Boarding
Airline reviews

There was no useful information given regarding the flight back to the UK from Tenerife. This despite the week publicised problems around the EES system and the delays caused to boarding. This aspect of the customer experience could have been much better.

8.0 ExcellentSimon, Jun 2026
LGW - TFS
Read more easyJet reviews

There was no useful information given regarding the flight back to the UK from Tenerife. This despite the week publicised problems around the EES system and the delays caused to boarding. This aspect of the customer experience could have been much better.

Fast boarding, smooth takeoff and landing. plenty of space in seats. Excellent air-conditioning on a hot day. Perfect experience

It was transportation nothing more. I will give a positive rating over Ryanair. We missed our Ryanair flight the night before and received rude and unconcerned treatment from the Ryanair customer service. It was late. We were very tired and stressed after doing our best to get to the airport. The so called customer service ladies were completely unconcerned from the start. Aside from that, the flight to London seemed to be their opportunity for advertising. No time to relax as attendants were constantly in the aisle selling. I will never fly Ryanair again!!

We accidentally purchased twice the bags we needed. Our fault, but the ticket was not clear to us, and it asked us to purchase bags at checkin. When we notified them to get credit back at the airport, they said to contact customer service. We flew the flight and then contracted customer service. They said no credits after the flight has flown. Not customer service oriented at all. They know we didn’t check that many bags and kept our money for a service they did not provide. Be aware and very careful of what you are purchasing from them because they will not make it right if there is an error.

Be sure to check bags for 23 kg,.(50 lbs) Coming from US I chose the wrong size luggage weight when I checked in on my phone, and had to pay more when I dropped it off

The on board air steward really made the journey. He was very entertaining

I was disappointed there was a 40 minute delay to flight

The trip itself was good. I have given only good as rating, because my first flight has been cancelled by a different airline and that caused disruption in my trip. I spent over ten hours in Luton airport and that caused me high tiredness, sickness, because of the very early initial trip. easyJet staff has been professional and friendly.

3 hours delayed Don’t understand why when you have paid for ‘speedy boarding’ they call you forward to then make you stand fir another 20 minutes in a confined space before boarding the plane.

Delayed and ketone runway. Was told some nonsense about thunderstorms slowing down flights. Why not just come out and tell customers NATO and BRITISH FORCES were doing defence exercises and were in control of AIR SPACE.

The plane was a long way from departure lounge. The plane looked tired but got us there.

No problems except for a completely full flight. But we were add one because of a previous delayed flight.

Cramped seating but standard in all smaller aircrafts today no matter what airlines. Crew very helpful, friendly & attentive so makes up for that.

I like everything about British Airways. Excellence. Perfect. Exquisite service.

Ohooo it's fantastic 👏 I love it 😀 😍 ❤️ it's on time ⏲️

First time on BA but will fly with them from now on! Everything about the flight was superb!!!

The flight was very delayed in taking off - which was out of control of the crew, but then the pilot worked hard so we only arrived about 30 minutes late. Everyone was very friendly and accommodating!

Only for BA because we had to get to Edinburgh at a certain time. Baggage lost, late boarding with only one person checking, again, our passports and boarding passes until the despatch controller had to step in to get us away. Will never fly BA again.

I didn’t have food and they don’t include entertainment. Not much leg room at all. Staff were great.

Flight was canceled with little notice or explanation. There were no other flights to Belfast from Heathrow, so I had to travel across town to London City (or wait until the next day).

The flight was on time, great value and very helpful crew. This direct flight was the most convenient I ever had coming to Sarajevo over the years. Will definitely use this flight again in the future without hesitation.

Very late to leave, poor communication on expected departure time and when boarding actually started.

Cheap flight but I didn't like the almost one hour delay because of paperwork!!!!

Gate is far at Leeds Bradford Airport. However, as the flight was less than half full, it was calm and not stressful. Great take off and landing. Friendly staff

Boarding was started early and we were lined up in. A glass tunnel on the tarmac we were left standing there for an hour with no information the flight left and arrived 30 mins late

It was great. We arrived a few minutes late but the crew were concert and kind about it. It was a nice smooth fly thanks be to Jesus. I prayed for smooth flight and Yahuwah answered my prayer.

We bought tickets for £30 from kayak but we paid £55 for check in to rayan , they slaught us

Flight was delayed so long we missed our second flight. Entire trip had to be cancelled. Ryanair refused to help us.

After you made us check-in I tried to add a suitcase in the internet and also to get help by chet. Nothing work and we pay 60 pounds at Airport. Comper to Easyjet to do the same, was easy and customer friendly.

I were there 20min before departure and they didn’t let me on the board with 5 other people, after all they admitted it was their(Ryanair) fault.

Everything you need to know for your flight from Heathrow to Belfast

Information on your arrival and departure airports