HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to Belfast Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 January 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$276
(Mytrip)

One-way from

$114
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$158
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. 11% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 8, 2026.

This Mytrip deal was found by Cheapflights users on 1/6. 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.
Fri 2/206:00 amLHR - BFS
2 stops31h 55mMultiple Airlines
Fri 2/2710:00 amBFS - LHR
2 stops11h 35mMultiple Airlines
Deal found 1/6$276
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 2/222:25 pmLHR - BFS
1 stop7h 55mMultiple Airlines
Sun 3/17:25 amBFS - LHR
1 stop6h 15mMultiple Airlines
Deal found 1/8$389
This Kiwi.com deal was found by Cheapflights users on 1/8. 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 1/167:00 amLHR - BFS
1 stop5h 50mMultiple Airlines
Fri 1/231:10 pmBFS - LHR
2 stops6h 40mMultiple Airlines
Deal found 1/8$521
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 2/57:00 amLHR - BFS
1 stop8h 25mMultiple Airlines
Thu 2/1210:10 amBFS - LHR
1 stop6h 30mMultiple Airlines
Deal found 1/7$612
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Thu 1/159:00 amLHR - BFS
1 stop6h 25mMultiple Airlines
Fri 1/167:30 amBFS - LHR
1 stop9h 10mMultiple Airlines
Deal found 1/6$616
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/167:00 amLHR - BFS
1 stop5h 50mMultiple Airlines
Sat 1/172:05 pmBFS - LHR
1 stop7h 20mMultiple Airlines
Deal found 1/7$620
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 1/299:00 amLHR - BFS
1 stop6h 25mMultiple Airlines
Sun 2/17:25 amBFS - LHR
1 stop9h 15mMultiple Airlines
Deal found 1/7$951

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 January 8, 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

Heathrow

Fly to

Belfast Intl

Route

Depart

Return

Price

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 2/20

6:00 am-1:55 pm

2 stops31h 55m

Belfast Intl

Fri 2/27

10:00 am-9:35 pm

2 stops11h 35m

$276

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sun 2/22

2:25 pm-10:20 pm

1 stop7h 55m

Belfast Intl

Sun 3/1

7:25 am-1:40 pm

1 stop6h 15m

$389

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 2/5

7:00 am-3:25 pm

1 stop8h 25m

Belfast Intl

Thu 2/12

10:10 am-4:40 pm

1 stop6h 30m

$612

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Thu 1/29

9:00 am-3:25 pm

1 stop6h 25m

Belfast Intl

Sun 2/1

7:25 am-4:40 pm

1 stop9h 15m

$951

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 3/3

8:50 pm-11:35 am

2 stops14h 45m

$128

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 5/5

9:55 am-8:00 pm

2 stops10h 05m

$158

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 1/27

12:10 pm-7:05 pm

2 stops6h 55m

$164

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Fri 1/16

6:45 pm-7:25 am

2 stops12h 40m

$183

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Sat 5/23

1:45 pm-9:15 pm

2 stops7h 30m

$225

LondonBelfast

LHR - BFS

LHRBFS

London Heathrow

Tue 6/23

1:25 pm-8:55 pm

2 stops7h 30m

$241

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 12 results
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 January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Trip.comPrice Accuracy2 starsTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on London Heathrow Airport-Belfast Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 January 2, 2026.

The best time to book flights from London Heathrow Airport to Belfast Intl Airport is 72 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 $48). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of $117). 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 January 8, 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
7,657 reviews

Crew

7.6

Overall

6.7

Food

6.4

Boarding

6.9

Entertainment

6.4

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

María Victoria,Nov 2025

LHR - GRU

Seats were comfortable for economy. Blanket and pillow provided, same as headphones. For some reason the uk plug wouldn’t charge and had to use the US charger. Also couldn’t use WiFi as keep saying BA club pw was wrong although it wasn’t: but minor things. Overall good flight and attentive crew.
British Airways
6.7
Okay
7,657 reviews
British Airways
6.7
Okay
7,657 reviews

Crew

7.6

Overall

6.7

Food

6.4

Boarding

6.9

Entertainment

6.4

Comfort

6.8

Reviews

1 / 20
10.0
Excellent

María Victoria,Nov 2025

LHR - GRU

Seats were comfortable for economy. Blanket and pillow provided, same as headphones. For some reason the uk plug wouldn’t charge and had to use the US charger. Also couldn’t use WiFi as keep saying BA club pw was wrong although it wasn’t: but minor things. Overall good flight and attentive crew.

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 $113, 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 36% 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 $48). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of $117). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 January 8, 2026.
Belfast Intl Airport to Edinburgh flights
Belfast Intl Airport to Glasgow Intl Airport flights
Belfast Intl Airport to Edinburgh 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$113Average$187FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.