LHR - BFS

$127 Find Cheap Flights from London Heathrow Airport to Belfast Intl Airport

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 Intl departing on 8/31. 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

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

 
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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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Belfast Intl (LHR-BFS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Heathrow to Belfast Intl 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Heathrow to Belfast Intl

Wed, Sep 3 - Wed, Sep 10
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7:35 am - 4:10 pmLHR-BFS
8h 35m1 stop
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5:00 pm - 9:50 pmBFS-LHR
4h 50m1 stop
$216
Find Deal
Sun, Nov 2 - Thu, Nov 6
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5:50 am - 9:10 amLHR-BFS
3h 20m1 stop
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7:05 am - 11:00 amBFS-LHR
3h 55m1 stop
$223
Find Deal
Sun, Nov 2 - Thu, Nov 6
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10:25 am - 2:45 pmLHR-BFS
4h 20m1 stop
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2:00 pm - 7:20 pmBFS-LHR
5h 20m1 stop
$254
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Mon, Sep 8 - Mon, Sep 15
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6:15 am - 9:15 amLHR-BFS
3h 00m1 stop
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5:55 pm - 9:50 pmBFS-LHR
3h 55m1 stop
$280
Find Deal
Fri, Sep 26 - Fri, Oct 3
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6:45 am - 12:30 pmLHR-BFS
5h 45m1 stop
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7:05 am - 11:40 amBFS-LHR
4h 35m1 stop
$282
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Thu, Sep 4 - Mon, Sep 8
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6:15 am - 4:40 pmLHR-BFS
10h 25m1 stop
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5:55 pm - 8:55 pmBFS-LHR
3h 00m1 stop
$294
Find Deal
Fri, Aug 29 - Mon, Sep 1
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8:40 pm - 7:55 amLHR-BFS
11h 15m1 stop
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4:20 pm - 8:55 pmBFS-LHR
4h 35m1 stop
$297
Find Deal
Fri, Sep 5 - Mon, Sep 8
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6:15 am - 11:05 amLHR-BFS
4h 50m1 stop
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5:55 pm - 8:55 pmBFS-LHR
3h 00m1 stop
$302
Find Deal
Mon, Dec 29 - Wed, Dec 31
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6:10 am - 12:50 pmLHR-BFS
6h 40m1 stop
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5:00 pm - 8:20 pmBFS-LHR
3h 20m1 stop
$321
Find Deal
Mon, Dec 29 - Tue, Dec 30
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6:10 am - 12:50 pmLHR-BFS
6h 40m1 stop
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5:15 pm - 8:25 pmBFS-LHR
3h 10m1 stop
$356
Find Deal
Booking Insights

KAYAK's insights & trends for Heathrow to Belfast Intl flights

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

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

The average price of all round-trip flights from London Heathrow Airport to Belfast Intl Airport 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 Intl Airport, look for departures on Tuesdays and avoid leaving on a Wednesday, as it's usually the priciest day. When flying back from Belfast Intl Airport, Tuesday is the cheapest day to fly and Wednesday is the most expensive.

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

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 Intl Airport, 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 Intl Airport is March, where tickets cost $133 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is $215 and $203 respectively.

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

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 Intl Airport, 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 Intl Airport, you should book around 5 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

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Good to know

Low seasonFebruary
Cheapest flight$127
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from London Heathrow Airport to Belfast Intl Airport

When to book flights from Heathrow to Belfast Intl

Are your dates flexible? Find out the best times to travel from Heathrow to Belfast Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Intl Airport flights

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

    In the last 3 days, the lowest price for a flight from London Heathrow Airport to Belfast Intl Airport was $127 for a one-way ticket and $216 for a round-trip.

  • Do I need a passport to fly between London Heathrow Airport and Belfast Intl Airport?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

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

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

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

    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 Intl Airport.

  • 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 Intl Airport?

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast Intl Airport with an airline and back to London Heathrow Airport with another airline. Booking your flights between London Heathrow Airport and BFS can sometimes prove cheaper using this method.

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

    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 Intl Airport from London Heathrow Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Heathrow to Belfast Intl

 
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 Intl? 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.
6.6
British AirwaysOverall score based on 7266 reviews
6.9Boarding
6.7Comfort
6.4Entertainment
6.3Food
7.6Crew
Airline reviews

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

8.0 ExcellentNjoki, Aug 2025LHR - BWI
Read more British Airways reviews

I checked in to bags, one arrived one was delayed. I did not receive the bag for 4 days - arrived on Tuesday, received bag on Saturday!

The booking agent, cheapflightsfares, messed up, and the information for the seats we paid extra for was not sent to American Airlines. We were separated on the return flight and sent to the lowest economy section. The flight attendant helped arrange seating at the back of the plane to allow my wife and me to sit together.

The staff were fantastic and couldn't have been more accomodating; however, the air-conditioning was broken in our section of the aircraft, leaving us feeling extremely cold and unwell on arrival in Johannesbury. The head sets were also faulty, causing difficulty when listening to announcements and entertainment.

I liked the comfort of the seats, very attentive crew, and the meals were excellent.

We spent twice as long on the runway waiting to take off as we did in the air.

We were kicked off this flight by British Airways due to delays on our connecting flight also operated by British airways and were rebooked on a different carrier which delayed our arrival home by > 26 hours.

Everything about the flight check-in was smooth no line the plane is clean and bathroom

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

All good. Loo’s weren’t great and as clean as i would like.

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

Information on your arrival and departure airports

London Heathrow Airport (LHR)
Belfast Intl (BFS)

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