LHR - BFS

$168 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 10/14. 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

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.

Recent round-trip flight deals from Heathrow to Belfast Intl

Fri, Dec 19 - Sat, Dec 20
Multiple Airlines Logo
7:00 am - 12:50 pmLHR-BFS
5h 50m1 stop
Multiple Airlines Logo
2:05 pm - 9:25 pmBFS-LHR
7h 20m1 stop
$590Multiple Airlines
Find Deal
Tue, Dec 23 - Tue, Dec 23
Multiple Airlines Logo
7:50 am - 4:15 pmLHR-BFS
8h 25m2 stops
Multiple Airlines Logo
9:35 pm - 3:35 pmBFS-LHR
18h 00m2 stops
$707Multiple Airlines
Find Deal

Everything you should know

When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 46% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 23% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$590
Overall average: $185
Multiple Airlines
Fri 12/19Sat 12/20
LHR - BFS • 1 stop
Cheapest one-way
$162
Typical prices: $65-188
Multiple Airlines
Tue 10/14
LHR - BFS • 2 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Belfast Intl!
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 Sundays and avoid leaving on a Saturday, 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 January, 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 $207 and $204 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 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$162
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 11% 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 $162 for a one-way ticket and $590 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.

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

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

  • 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.
6.7
British AirwaysOverall score based on 7443 reviews
7.6Crew
6.9Boarding
6.7Comfort
6.4Entertainment
6.3Food
Airline reviews

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

6.0 GoodAnonymous, Oct 2025LHR - SFO
Read more British Airways reviews

It was good although our flight to the UK was cancelled and rescheduled for two days later. This was after we were already seated on the plane. We missed the first leg of our trip. BA did put us up at a hotel and paid for our meals but we lost our hotel costs in Glasgow.

The crew was very nice and pleasant. We were very reluctant to book our flight with British Airlines because we had bad experience with their flight attendants on the previous trips, they were rude and not helpful.

I am a 25+ years American Airlines member. British Airways is simply above and beyond in every customer satisfaction category.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

1. The website didn’t allow me to checkin from London as I have Bangladesh passport with US permanent resident card. This pushed me to sit with my wife in the middle of two aisle seats, terrible experience! 2. BA should allow within 24 hours to checkin with other passport holders to choose better seats. A 2nd verification of travel documents can be done at the desk about immigration status. 3. Food options were poor for vegetarian passengers, try to introduce healthy options avoiding carb-dense food ingredients.

Cabin crew lovely and accommodating and I'll always fly BA in the future

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Everything excellent except for bag drop off. We started at the D area and that was so slow that it was eventually closed just as we were about to go to a station. We then went to F. We got one suitcase checked and then the screen showed that the station was no longer operable. There were long lines everywhere so we had to ask if we could butt in to the next station to finish. Again, this was the only incident, otherwise it was an excellent flying experience

Adequate to good experience. Comfort was mediocre but everything else was good..

They need to improve their service at the airport. Rather than a bus, they need to park the plane at a station like normal airlines to so passengers can just walk out of the plane into the airport and catch their next flight

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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