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Belfast Intl

$92+ Cheap flights from Heathrow (LHR) to Belfast Intl (BFS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap flight deals from Heathrow to Belfast Intl

Cheapest flights from Heathrow to Belfast Intl
Explore the most affordable flight options available from Heathrow to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/203:10 pm
LHR
-
BFS
2 stops5h 45m
Multiple Airlines
Mon 4/279:10 am
BFS
-
LHR
1 stop10h 55m
Multiple Airlines
Deal found 3/6$353
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:05 am
LHR
-
BFS
2 stops7h 50m
Multiple Airlines
Fri 5/19:05 am
BFS
-
LHR
1 stop10h 25m
Multiple Airlines
Deal found 3/9$433
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/157:00 am
LHR
-
BFS
1 stop5h 45m
Multiple Airlines
Sat 3/212:05 pm
BFS
-
LHR
1 stop7h 20m
Multiple Airlines
Deal found 3/6$501
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:00 am
LHR
-
BFS
1 stop5h 50m
Multiple Airlines
Sat 3/212:05 pm
BFS
-
LHR
1 stop7h 20m
Multiple Airlines
Deal found 3/6$533
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:00 am
LHR
-
BFS
1 stop5h 50m
Multiple Airlines
Sun 3/227:25 am
BFS
-
LHR
2 stops15h 30m
Multiple Airlines
Deal found 3/6$535
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/157:00 am
LHR
-
BFS
1 stop5h 45m
Multiple Airlines
Sun 3/227:25 am
BFS
-
LHR
1 stop6h 15m
Multiple Airlines
Deal found 3/6$619
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/157:00 am
LHR
-
BFS
1 stop5h 45m
Multiple Airlines
Fri 3/207:30 am
BFS
-
LHR
1 stop6h 10m
Multiple Airlines
Deal found 3/6$647
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/288:50 pm
LHR
-
BFS
1 stop14h 35m
Multiple Airlines
Mon 4/139:10 am
BFS
-
LHR
1 stop10h 55m
Multiple Airlines
Deal found 3/9$654
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/142:25 pm
LHR
-
BFS
1 stop5h 00m
Multiple Airlines
Sat 3/212:05 pm
BFS
-
LHR
1 stop7h 20m
Multiple Airlines
Deal found 3/6$666
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:00 am
LHR
-
BFS
1 stop5h 50m
Multiple Airlines
Fri 3/207:30 am
BFS
-
LHR
1 stop6h 10m
Multiple Airlines
Deal found 3/6$678
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/277:00 am
LHR
-
BFS
1 stop5h 50m
Multiple Airlines
Sat 3/2812:00 pm
BFS
-
LHR
1 stop6h 40m
Multiple Airlines
Deal found 3/9$685

Find flight deals from Heathrow to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Belfast Intl (BFS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$353
(Kiwi.com)

One-way from

$92
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$147
Provider with most accurate pricing for London Heathrow-Belfast Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Belfast Intl flights.
Search Deals
From London Heathrow to Belfast Intl
Search Deals
One-way flight from London Heathrow to Belfast Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Belfast Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 4/20

3:10 pm-8:55 pm

2 stops5h 45m

Belfast Intl

Mon 4/27

9:10 am-8:05 pm

1 stop10h 55m

$353

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 4/24

11:05 am-6:55 pm

2 stops7h 50m

Belfast Intl

Fri 5/1

9:05 am-7:30 pm

1 stop10h 25m

$433

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 3/28

8:50 pm-11:25 am

1 stop14h 35m

Belfast Intl

Mon 4/13

9:10 am-8:05 pm

1 stop10h 55m

$654

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 3/27

7:00 am-12:50 pm

1 stop5h 50m

Belfast Intl

Sat 3/28

12:00 pm-6:40 pm

1 stop6h 40m

$685
Quickest round-trip

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 3/20

7:00 am-12:50 pm

1 stop5h 50m

Belfast Intl

Sun 3/22

7:25 am-1:40 pm

1 stop6h 15m

$748

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 4/4

8:55 am-3:35 pm

1 stop6h 40m

Belfast Intl

Sat 4/11

10:35 am-9:35 pm

2 stops11h 00m

$1,357
Cheapest one-way

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 4/9

3:00 pm-3:05 pm

1 stop24h 05m

$131

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 4/21

6:45 pm-9:20 am

2 stops14h 35m

$164

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 5/15

8:50 am-7:30 pm

2 stops10h 40m

$167

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 7/1

7:40 am-3:15 pm

2 stops7h 35m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Heathrow to Belfast Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Belfast Intl in March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Heathrow Airport-Belfast Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Belfast Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Belfast Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Belfast Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Belfast Intl. Price data was last updated on March 6, 2026.

The best time to book flights from London Heathrow Airport to Belfast Intl Airport is 82 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Belfast Intl Airport?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of $54). Flying from London Heathrow Airport to Belfast Intl Airport in February is currently the most expensive (average of $124). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from London Heathrow Airport to Belfast Intl Airport?

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast Intl. Reviews last updated March 10, 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Belfast Intl Airport, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,781 reviews

Comfort

6.8

Crew

7.6

Food

6.4

Overall

6.7

Boarding

6.9

Entertainment

6.4

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.
British Airways
6.7
Okay
7,781 reviews
British Airways
6.7
Okay
7,781 reviews

Comfort

6.8

Crew

7.6

Food

6.4

Overall

6.7

Boarding

6.9

Entertainment

6.4

Reviews

1 / 20
6.0
Good

David,Jan 2026

LHR - MAD

It was a very old and tried plane. Lots of duck tape holding things together. Staff and food very good. Boarding was chaos at Madrid. Arrival in Lima swift and effective.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from London Heathrow Airport to Belfast Intl Airport round-trip?

    Currently priced at $125, British Airways will fly you from London Heathrow Airport to Belfast Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. British Airways is priced at 33% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Heathrow to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Heathrow to Belfast Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Belfast Intl.

  • Can I find deals for business class flights from Heathrow to Belfast Intl?

    Yes. Cheapflights offers flight deals from Heathrow to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of $54). Flying from London Heathrow Airport to Belfast Intl Airport in February is currently the most expensive (average of $124). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Belfast Intl

Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 10, 2026.
Belfast Intl Airport to Edinburgh flights
Belfast Intl Airport to Edinburgh flights
Belfast Intl Airport to Glasgow Intl Airport flights

Top airline flying from Heathrow to Belfast Intl

Discover the top airline that operate flights from Heathrow to Belfast Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$125Average$218FlexibilityNo cancel feeOn-time70%

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