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Belfast Intl

$114+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from London Heathrow to Belfast Intl are usually found in January or March, booked 66 days in advance, depart on a Saturday or Wednesday and return on a Friday

Cheap 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 September 11, 2025.

Popular in

July

Cheapest in

January

Average price

$159
Highest demand for flights based on searches. 15% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Mon 10/68:30 pmLHR - BFS
1 stop12h 20mMultiple Airlines
Thu 10/234:00 pmBFS - LHR
2 stops6h 40mMultiple Airlines
Deal found 9/9$411
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 9/113:10 pmLHR - BFS
2 stops7h 05mMultiple Airlines
Thu 9/186:05 amBFS - LHR
1 stop13h 25mMultiple Airlines
Deal found 9/10$607

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 September 11, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Belfast Intl Airport that are best for you.

Fly from

Heathrow

Fly to

Belfast Intl

Route

Depart

Return

Price

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 10/6

8:30 pm-8:50 am

1 stop12h 20m

Belfast Intl

Thu 10/23

4:00 pm-10:40 pm

2 stops6h 40m

$411

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 10/19

3:05 pm-12:10 pm

1 stop21h 05m

$114

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 10/21

3:10 pm-10:55 pm

2 stops7h 45m

$140

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 9/23

8:50 pm-3:55 pm

1 stop19h 05m

$156

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Wed 9/24

8:50 pm-9:10 am

2 stops12h 20m

$178

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 9/18

7:40 am-6:35 pm

2 stops10h 55m

$204

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Mon 9/15

10:25 pm-11:20 am

2 stops12h 55m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

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 August 29, 2025.

The best time to book flights from London Heathrow Airport to Belfast Intl Airport is 66 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of $657). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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.

What is the cheapest time of day to fly from LHR to BFS?

Find hourly flight availability from Heathrow to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Belfast Intl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 63% on airfare.

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 September 11, 2025.
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
7,361 reviews

Boarding

6.9

Overall

6.7

Entertainment

6.4

Food

6.3

Crew

7.6

Comfort

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

LHR - FCO

The crew was wonderful. Service was great. The discomfort came from the passenger behind me kicking the seat.
British Airways
6.7
Okay
7,361 reviews
British Airways
6.7
Okay
7,361 reviews

Boarding

6.9

Overall

6.7

Entertainment

6.4

Food

6.3

Crew

7.6

Comfort

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

LHR - FCO

The crew was wonderful. Service was great. The discomfort came from the passenger behind me kicking the seat.

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 $111, 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 35% 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Belfast Intl Airport (average of $657). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$111Average$182FlexibilityNo cancel feeOn-time70%

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