LHR - BFS

$128 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 6/29. 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 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
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$291
Typical prices: $120-$210
Multiple Airlines
Mon 3/23Wed 3/25
LHR - BFS • 1 stop
Cheapest one-way
$128
Typical prices: $70-$167
Multiple Airlines
Mon 6/29
LHR - BFS • 1 stop
When to book
5 weeks
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 47% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
March
Cheapest • 23% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Belfast Intl!
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.

Recent round-trip flight deals from Heathrow to Belfast Intl

Mon, Mar 23 - Wed, Mar 25
Multiple Airlines Logo
2:25 pm - 7:00 pm
LHR
-
BFS
4h 35m
1 stop
Multiple Airlines Logo
4:35 pm - 8:30 pm
BFS
-
LHR
3h 55m
1 stop
$291Multiple Airlines
Sun, Apr 12 - Wed, Apr 22
Multiple Airlines Logo
8:50 pm - 8:40 am
LHR
-
BFS
11h 50m
1 stop
Multiple Airlines Logo
9:35 am - 8:05 pm
BFS
-
LHR
10h 30m
1 stop
$292Multiple Airlines
Mon, Mar 23 - Tue, Mar 24
Multiple Airlines Logo
2:25 pm - 7:00 pm
LHR
-
BFS
4h 35m
1 stop
Multiple Airlines Logo
4:30 pm - 8:25 pm
BFS
-
LHR
3h 55m
1 stop
$304Multiple Airlines
Sat, Jun 27 - Mon, Jun 29
Multiple Airlines Logo
4:15 pm - 9:15 pm
LHR
-
BFS
5h 00m
1 stop
Multiple Airlines Logo
2:20 pm - 6:00 pm
BFS
-
LHR
3h 40m
1 stop
$354Multiple Airlines
Sat, Jun 27 - Mon, Jun 29
Multiple Airlines Logo
4:15 pm - 9:15 pm
LHR
-
BFS
5h 00m
1 stop
Multiple Airlines Logo
2:20 pm - 6:00 pm
BFS
-
LHR
3h 40m
1 stop
$370Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
12:00 pm - 7:25 pm
LHR
-
BFS
7h 25m
2 stops
Multiple Airlines Logo
9:10 am - 8:05 pm
BFS
-
LHR
10h 55m
1 stop
$459Multiple Airlines
Wed, Mar 18 - Mon, Mar 23
Multiple Airlines Logo
4:25 pm - 8:15 pm
LHR
-
BFS
3h 50m
1 stop
Multiple Airlines Logo
4:25 pm - 7:50 pm
BFS
-
LHR
3h 25m
1 stop
$462Multiple Airlines
Fri, Mar 20 - Fri, Mar 27
Multiple Airlines Logo
7:00 am - 12:50 pm
LHR
-
BFS
5h 50m
1 stop
Multiple Airlines Logo
7:30 am - 1:40 pm
BFS
-
LHR
6h 10m
1 stop
$470Multiple Airlines
Fri, Apr 3 - Sun, Apr 5
Multiple Airlines Logo
6:15 pm - 9:40 pm
LHR
-
BFS
3h 25m
1 stop
Multiple Airlines Logo
5:05 pm - 9:00 pm
BFS
-
LHR
3h 55m
1 stop
$507Multiple Airlines
Mon, Apr 6 - Mon, Apr 13
Multiple Airlines Logo
6:20 pm - 9:50 pm
LHR
-
BFS
3h 30m
1 stop
Multiple Airlines Logo
2:20 pm - 6:00 pm
BFS
-
LHR
3h 40m
1 stop
$520Multiple Airlines
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.

How much is a round-trip flight from London Heathrow Airport to Belfast Intl Airport?

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

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 Friday, as it's usually the priciest day. When flying back from Belfast Intl Airport, Thursday 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 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 $141 (return) on average. On the other hand, the most expensive months are May and July, where the average cost of round-trip tickets is $209 and $207 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 23 weeks before departure.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$128
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 2% 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 $128 for a one-way ticket and $292 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 7759 reviews
6.9Boarding
6.4Food
6.8Comfort
6.4Entertainment
7.6Crew
Airline reviews

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

6.0 GoodClaudia, Feb 2026
LHR - FRA
Read more British Airways reviews

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

No WiFi. No food. 250 ml of water only drink option. No entertainment options. Extremely bare bones flight

Economy seats were good and spacious. Much better than virgin by a mile.

I was unable to board this flight because of visa changes that I was not alerted about and I’ve been unable to contact Kayak to obtain a refund / credit anything.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

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)