$140+ 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
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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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
Cheapest
Best
Last-minute
One-way
Cheapest flights from Heathrow to Belfast IntlExplore 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 August 10, 2026.
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 August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/33:10 pm -
2 stops6h 00m
Wed 9/99:35 am -
1 stop10h 30m
Deal found 8/6![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:45 pm -
2 stops7h 00m
Thu 9/1010:15 am -
1 stop9h 50m
Deal found 8/5![Multiple Airlines logo]()
$480
This Mytrip deal was found by Cheapflights users on 8/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:05 pm -
2 stops20h 40m
Thu 9/245:55 am -
2 stops13h 25m
Deal found 8/8![Multiple Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Tue 8/113:50 pm -
2 stops5h 45m
Sun 8/166:10 am -
1 stop13h 55m
Deal found 8/7![Multiple Airlines logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Wed 8/199:55 am -
1 stop14h 10m
Sun 8/236:10 am -
1 stop13h 55m
Deal found 8/7![Multiple Airlines logo]()
$705
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:50 pm -
2 stops6h 20m
Fri 8/72:05 pm -
1 stop7h 45m
Deal found 8/5![Multiple Airlines logo]()
$1,128
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Sat 8/82:40 pm -
2 stops6h 20m
Mon 8/109:40 am -
1 stop6h 55m
Deal found 8/7![Multiple Airlines logo]()
$1,541
Best flights from Heathrow to Belfast IntlDiscover carefully curated flight deals from Heathrow to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Heathrow to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/33:10 pm -
2 stops6h 00m
Wed 9/99:35 am -
1 stop10h 30m
Deal found 8/6![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:45 pm -
2 stops7h 00m
Thu 9/1010:15 am -
1 stop9h 50m
Deal found 8/5![Multiple Airlines logo]()
$480
This Mytrip deal was found by Cheapflights users on 8/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:05 pm -
2 stops20h 40m
Thu 9/245:55 am -
2 stops13h 25m
Deal found 8/8![Multiple Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Wed 8/199:55 am -
1 stop14h 10m
Sun 8/236:10 am -
1 stop13h 55m
Deal found 8/7![Multiple Airlines logo]()
$705
Last-minute flights from Heathrow to Belfast IntlDiscover last-minute flight deals from Heathrow to Belfast Intl. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to Belfast Intl. Data last updated August 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/63:50 pm -
2 stops6h 20m
Fri 8/72:05 pm -
1 stop7h 45m
Deal found 8/5![Multiple Airlines logo]()
$1,128
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Sat 8/82:40 pm -
2 stops6h 20m
Mon 8/109:40 am -
1 stop6h 55m
Deal found 8/7![Multiple Airlines logo]()
$1,541
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Tue 8/113:50 pm -
2 stops5h 45m
Sun 8/166:10 am -
1 stop13h 55m
Deal found 8/7![Multiple Airlines logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Wed 8/199:55 am -
1 stop14h 10m
Sun 8/236:10 am -
1 stop13h 55m
Deal found 8/7![Multiple Airlines logo]()
$705
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/33:10 pm -
2 stops6h 00m
Wed 9/99:35 am -
1 stop10h 30m
Deal found 8/6![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:45 pm -
2 stops7h 00m
Thu 9/1010:15 am -
1 stop9h 50m
Deal found 8/5![Multiple Airlines logo]()
$480
This Mytrip deal was found by Cheapflights users on 8/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/88:05 pm -
2 stops20h 40m
Thu 9/245:55 am -
2 stops13h 25m
Deal found 8/8![Multiple Airlines logo]()
$566
One-way flights from Heathrow to Belfast IntlSearch for one-way flight options from Heathrow to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Heathrow to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/318:50 pm -
2 stops13h 00m
Deal found 8/6![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:05 am -
2 stops11h 05m
Deal found 8/5![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/44:50 pm -
2 stops6h 30m
Deal found 8/7![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Wed 12/910:55 am -
2 stops10h 00m
Deal found 8/4![Multiple Airlines logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Wed 10/289:55 am -
2 stops11h 00m
Deal found 8/9![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/1711:05 am -
2 stops9h 40m
Deal found 8/6![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/318:45 pm -
2 stops11h 00m
Deal found 8/6![Multiple Airlines logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:50 pm -
1 stop11h 50m
Deal found 8/5![Multiple Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Thu 2/47:00 am -
1 stop8h 20m
Deal found 8/9![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 10/241:45 pm -
2 stops7h 30m
Deal found 8/9![Multiple Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Tue 10/278:50 am -
2 stops10h 20m
Deal found 8/7![Multiple Airlines logo]()
$206
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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $456 (Kiwi.com) |
One-way from | $140 (Kiwi.com) |
Popular in | June |
Cheapest in | November |
Average price | $216 |
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 August 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
Cheapest round-trip
Quickest round-trip
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Thu 9/3
3:10 pm-9:10 pm
2 stops6h 00m
Belfast Intl
Wed 9/9
9:35 am-8:05 pm
1 stop10h 30m
$456
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Fri 9/4
2:45 pm-9:45 pm
2 stops7h 00m
Belfast Intl
Thu 9/10
10:15 am-8:05 pm
1 stop9h 50m
$480
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Tue 9/8
8:05 pm-4:45 pm
2 stops20h 40m
Belfast Intl
Thu 9/24
5:55 am-7:20 pm
2 stops13h 25m
$566
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Wed 8/19
9:55 am-12:05 am
1 stop14h 10m
Belfast Intl
Sun 8/23
6:10 am-8:05 pm
1 stop13h 55m
$705
Cheapest one-way
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Mon 8/31
8:50 pm-9:50 am
2 stops13h 00m
$140
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Sun 10/18
9:50 am-8:40 pm
2 stops10h 50m
$142
Quickest one-way
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Fri 9/4
4:50 pm-11:20 pm
2 stops6h 30m
$174
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Wed 12/9
10:55 am-8:55 pm
2 stops10h 00m
$176
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Sat 10/17
11:05 am-8:45 pm
2 stops9h 40m
$181
LondonBelfast
LHR London Heathrow - BFS Belfast Intl
LHRBFS
London Heathrow
Sat 10/31
8:45 pm-7:45 am
2 stops11h 00m
$182
Showing 1-10 of 14 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
LHR-BFS
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 81 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 $158). Flying from London Heathrow Airport to Belfast Intl Airport in June is currently the most expensive (average of $221). 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?
Airfare is above average for this route at the moment.
London Heathrow Airport to Belfast Intl Airport flights typically cost between $166 and $306 in September.The cheapest round-trip price found within the last 5 days was $456 on Multiple Airlines (Sep 3-Sep 9).
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 August 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.
Boarding
7.0
Crew
7.7
Food
6.4
Entertainment
6.5
Overall
6.7
Comfort
6.8
Reviews
1 / 20
6.0
GoodDavid,Jan 2026
LHR - MAD
Boarding
7.0
Crew
7.7
Food
6.4
Entertainment
6.5
Overall
6.7
Comfort
6.8
Reviews
1 / 20
6.0
GoodDavid,Jan 2026
LHR - MAD
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.
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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 August 10, 2026.
Complete your trip
Complete your trip to Belfast Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Heathrow to Belfast Intl by cabin class
Find flights from Heathrow to Belfast Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Heathrow and Belfast Intl flights
Browse other Heathrow and Belfast Intl flight options. Last updated on August 10, 2026.
Other flights from Heathrow
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on August 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 August 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$129 | Average$238 | FlexibilityNo cancel fee | On-time70% |