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Belfast Intl

$136+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
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 July 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/3. 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.
Tue 8/49:55 am
LHR
-
BFS
2 stops11h 00m
Multiple Airlines
Wed 8/265:45 pm
BFS
-
LHR
1 stop15h 25m
Multiple Airlines
Deal found 7/3$345
This Mytrip deal was found by Cheapflights users on 7/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:45 pm
LHR
-
BFS
2 stops23h 10m
Multiple Airlines
Sun 7/261:30 pm
BFS
-
LHR
2 stops9h 25m
Multiple Airlines
Deal found 7/5$652
This Mytrip deal was found by Cheapflights users on 7/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:00 pm
LHR
-
BFS
2 stops30h 55m
Multiple Airlines
Tue 11/108:25 am
BFS
-
LHR
2 stops28h 50m
Multiple Airlines
Deal found 7/6$730
This Mytrip deal was found by Cheapflights users on 7/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:50 am
LHR
-
BFS
2 stops6h 10m
Multiple Airlines
Thu 8/273:55 pm
BFS
-
LHR
2 stops15h 45m
Multiple Airlines
Deal found 7/5$1,064

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 July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$345
(Kiwi.com)

One-way from

$136
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$214
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. 9% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 7, 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

Tue 8/4

9:55 am-8:55 pm

2 stops11h 00m

Belfast Intl

Wed 8/26

5:45 pm-9:10 am

1 stop15h 25m

$345

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 7/14

1:45 pm-12:55 pm

2 stops23h 10m

Belfast Intl

Sun 7/26

1:30 pm-10:55 pm

2 stops9h 25m

$652
Quickest round-trip

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 8/27

6:50 am-1:00 pm

2 stops6h 10m

Belfast Intl

Thu 8/27

3:55 pm-7:40 am

2 stops15h 45m

$1,064
Cheapest one-way

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 8/10

9:10 pm-10:00 am

2 stops12h 50m

$147

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 9/14

11:05 am-8:55 pm

2 stops9h 50m

$151

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 7/22

9:55 am-10:30 pm

2 stops12h 35m

$154

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 7/27

3:50 pm-7:25 am

2 stops15h 35m

$191

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 8/21

3:00 pm-10:50 pm

1 stop7h 50m

$194

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 7/19

10:00 pm-9:40 am

2 stops11h 40m

$266

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 7/26

8:50 pm-9:05 am

1 stop12h 15m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2
  • 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?

The best time to book flights from London Heathrow Airport to Belfast Intl Airport is 84 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of $153). Flying from London Heathrow Airport to Belfast Intl Airport in August is currently the most expensive (average of $240). 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 July 7, 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
8,101 reviews

Entertainment

6.4

Overall

6.7

Comfort

6.8

Boarding

6.9

Crew

7.7

Food

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
8,101 reviews
British Airways
6.7
Okay
8,101 reviews

Entertainment

6.4

Overall

6.7

Comfort

6.8

Boarding

6.9

Crew

7.7

Food

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 $127, 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 34% 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of $153). Flying from London Heathrow Airport to Belfast Intl Airport in August is currently the most expensive (average of $240). 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

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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 July 7, 2026.
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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 July 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$127Average$238FlexibilityNo cancel feeOn-time70%

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