Cheap flights from London Heathrow Airport to Belfast Intl Airport from £84
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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BFS
3 Sep — 10 Sep1
Return
1 adult
Economy
Cheapflights Tip: The best prices from London Heathrow to Belfast Intl are usually found in March or January, booked 66 days in advance, depart on a Wednesday or Tuesday and return on a Thursday
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 29 August 2025.
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 29 August 2025.
Sat 18/1020:10LHR - BFS
1 stop10h 40mMultiple Airlines
Sun 19/1022:55BFS - LHR
1 stop9h 40mMultiple Airlines
Deal found 27/8£164
Sun 12/1009:00LHR - BFS
1 stop10h 05mMultiple Airlines
Sun 19/1021:00BFS - LHR
2 stops17h 45mMultiple Airlines
Deal found 28/8£233
Sat 27/906:15LHR - BFS
1 stop5h 40mMultiple Airlines
Sat 4/1012:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 28/8£240
Fri 10/1006:45LHR - BFS
1 stop9h 55mMultiple Airlines
Sun 12/1022:55BFS - LHR
1 stop22h 55mMultiple Airlines
Deal found 29/8£244
Thu 23/1017:50LHR - BFS
2 stops15h 05mMultiple Airlines
Thu 30/1007:30BFS - LHR
2 stops12h 05mMultiple Airlines
Deal found 27/8£246
Sat 4/1006:15LHR - BFS
1 stop10h 25mMultiple Airlines
Tue 7/1014:50BFS - LHR
1 stop6h 35mMultiple Airlines
Deal found 27/8£248
Wed 1/1015:50LHR - BFS
2 stops7h 10mMultiple Airlines
Mon 6/1015:30BFS - LHR
1 stop5h 55mMultiple Airlines
Deal found 27/8£254
Fri 5/906:15LHR - BFS
1 stop7h 50mMultiple Airlines
Thu 11/919:35BFS - LHR
1 stop12h 25mMultiple Airlines
Deal found 27/8£258
Fri 7/1108:40LHR - BFS
1 stop5h 00mMultiple Airlines
Sun 9/1114:45BFS - LHR
1 stop4h 30mMultiple Airlines
Deal found 27/8£261
Tue 30/906:15LHR - BFS
1 stop5h 25mMultiple Airlines
Sat 11/1012:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 28/8£264
Thu 2/1017:10LHR - BFS
1 stop5h 15mMultiple Airlines
Sun 5/1013:20BFS - LHR
1 stop4h 30mMultiple Airlines
Deal found 27/8£269
Best flights from Heathrow to Belfast Intl
Discover carefully curated flight deals from Heathrow to Belfast Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2025.
Sat 18/1020:10LHR - BFS
1 stop10h 40mMultiple Airlines
Sun 19/1022:55BFS - LHR
1 stop9h 40mMultiple Airlines
Deal found 27/8£164
Sun 12/1009:00LHR - BFS
1 stop10h 05mMultiple Airlines
Sun 19/1021:00BFS - LHR
2 stops17h 45mMultiple Airlines
Deal found 28/8£233
Sat 27/906:15LHR - BFS
1 stop5h 40mMultiple Airlines
Sat 4/1012:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 28/8£240
Fri 10/1006:45LHR - BFS
1 stop9h 55mMultiple Airlines
Sun 12/1022:55BFS - LHR
1 stop22h 55mMultiple Airlines
Deal found 29/8£244
Thu 23/1017:50LHR - BFS
2 stops15h 05mMultiple Airlines
Thu 30/1007:30BFS - LHR
2 stops12h 05mMultiple Airlines
Deal found 27/8£246
Sat 4/1006:15LHR - BFS
1 stop10h 25mMultiple Airlines
Tue 7/1014:50BFS - LHR
1 stop6h 35mMultiple Airlines
Deal found 27/8£248
Thu 16/1006:15LHR - BFS
1 stop7h 45mMultiple Airlines
Mon 20/1015:30BFS - LHR
1 stop5h 55mMultiple Airlines
Deal found 28/8£248
Wed 1/1015:50LHR - BFS
2 stops7h 10mMultiple Airlines
Mon 6/1015:30BFS - LHR
1 stop5h 55mMultiple Airlines
Deal found 27/8£254
Fri 7/1108:40LHR - BFS
1 stop5h 00mMultiple Airlines
Sun 9/1114:45BFS - LHR
1 stop4h 30mMultiple Airlines
Deal found 27/8£261
Tue 30/906:15LHR - BFS
1 stop5h 25mMultiple Airlines
Sat 11/1012:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 28/8£264
Thu 2/1017:10LHR - BFS
1 stop5h 15mMultiple Airlines
Sun 5/1013:20BFS - LHR
1 stop4h 30mMultiple Airlines
Deal found 27/8£269
Last-minute flights from Heathrow to Belfast Intl
Discover last-minute flight deals from Heathrow to Belfast Intl. Data last updated 29 August 2025 and is based on user searches.
Mon 1/906:15LHR - BFS
1 stop8h 40mMultiple Airlines
Thu 4/919:35BFS - LHR
1 stop12h 25mMultiple Airlines
Deal found 27/8£300
Fri 5/906:15LHR - BFS
1 stop7h 50mMultiple Airlines
Thu 11/919:35BFS - LHR
1 stop12h 25mMultiple Airlines
Deal found 27/8£258
Fri 5/906:15LHR - BFS
1 stop7h 50mMultiple Airlines
Mon 8/915:30BFS - LHR
1 stop5h 55mMultiple Airlines
Deal found 27/8£286
Sat 6/911:30LHR - BFS
1 stop5h 30mMultiple Airlines
Tue 9/914:50BFS - LHR
1 stop6h 35mMultiple Airlines
Deal found 28/8£303
Wed 10/915:10LHR - BFS
2 stops6h 30mMultiple Airlines
Sat 13/912:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 27/8£294
Mon 22/920:30LHR - BFS
1 stop12h 20mMultiple Airlines
Wed 1/1008:20BFS - LHR
2 stops11h 45mMultiple Airlines
Deal found 27/8£275
Tue 23/911:30LHR - BFS
1 stop7h 35mMultiple Airlines
Mon 29/915:30BFS - LHR
1 stop5h 55mMultiple Airlines
Deal found 28/8£283
Thu 25/917:10LHR - BFS
1 stop5h 15mMultiple Airlines
Thu 9/1007:00BFS - LHR
2 stops13h 05mMultiple Airlines
Deal found 28/8£280
Sat 27/906:15LHR - BFS
1 stop5h 40mMultiple Airlines
Sat 4/1012:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 28/8£240
Sat 27/906:15LHR - BFS
1 stop5h 40mMultiple Airlines
Mon 29/915:30BFS - LHR
1 stop5h 55mMultiple Airlines
Deal found 28/8£283
Tue 30/906:15LHR - BFS
1 stop5h 25mMultiple Airlines
Sat 11/1012:35BFS - LHR
1 stop6h 00mMultiple Airlines
Deal found 28/8£264
One-way flights from Heathrow to Belfast Intl
Search for one-way flight options from Heathrow to Belfast Intl. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.
Thu 18/915:05LHR - BFS
1 stop23h 25mMultiple Airlines
Deal found 27/8£84
Sun 21/920:50LHR - BFS
2 stops26h 20mMultiple Airlines
Deal found 28/8£112
Sun 19/1011:05LHR - BFS
2 stops11h 25mMultiple Airlines
Deal found 28/8£115
Sun 12/1011:05LHR - BFS
2 stops11h 25mMultiple Airlines
Deal found 28/8£116
Sat 4/1018:25LHR - BFS
2 stops12h 25mMultiple Airlines
Deal found 27/8£117
Mon 8/920:50LHR - BFS
2 stops15h 25mMultiple Airlines
Deal found 28/8£136
Wed 1/1022:25LHR - BFS
2 stops23h 50mMultiple Airlines
Deal found 28/8£137
Sat 27/921:10LHR - BFS
2 stops35h 00mMultiple Airlines
Deal found 28/8£142
Fri 24/1009:55LHR - BFS
1 stop12h 30mMultiple Airlines
Deal found 28/8£144
Cheapflights Fare Finder
Customise 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 858,174 searches. Data last updated 29 August 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
Sat 18/10
20:10-06:50
1 stop10h 40m
Belfast Intl
Sun 19/10
22:55-08:35
1 stop9h 40m
£164
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Sun 12/10
09:00-19:05
1 stop10h 05m
Belfast Intl
Sun 19/10
21:00-14:45
2 stops17h 45m
£233
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Sat 27/9
06:15-11:55
1 stop5h 40m
Belfast Intl
Sat 4/10
12:35-18:35
1 stop6h 00m
£240
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Fri 10/10
06:45-16:40
1 stop9h 55m
Belfast Intl
Sun 12/10
22:55-21:50
1 stop22h 55m
£244
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Thu 23/10
17:50-08:55
2 stops15h 05m
Belfast Intl
Thu 30/10
07:30-19:35
2 stops12h 05m
£246
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Sat 4/10
06:15-16:40
1 stop10h 25m
Belfast Intl
Tue 7/10
14:50-21:25
1 stop6h 35m
£248
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Thu 16/10
06:15-14:00
1 stop7h 45m
Belfast Intl
Mon 20/10
15:30-21:25
1 stop5h 55m
£248
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Wed 1/10
15:50-23:00
2 stops7h 10m
Belfast Intl
Mon 6/10
15:30-21:25
1 stop5h 55m
£254
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Fri 7/11
08:40-13:40
1 stop5h 00m
Belfast Intl
Sun 9/11
14:45-19:15
1 stop4h 30m
£261
LondonBelfast
LHR - BFS
LHRBFS
London Heathrow
Tue 30/9
06:15-11:40
1 stop5h 25m
Belfast Intl
Sat 11/10
12:35-18:35
1 stop6h 00m
£264
Flights are sorted by cheapest return flights first.
Deals found on 27/8
Showing 1-10 of 19 results
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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 return 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 return flight from Heathrow to Belfast Intl. Price data was last updated on 22 August 2025.
Booking 66 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Belfast Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 £67). Flying from London Heathrow Airport to Belfast Intl Airport in July is currently the most expensive (average of £90). 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 29 August 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 afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 17% on airfare.
What is the cheapest day to fly from London Heathrow Airport to Belfast Intl Airport?
Use this chart to determine the cheapest time to fly return from Heathrow to Belfast Intl. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their London Heathrow Airport to Belfast Intl Airport flight should consider departing on Tuesday at midday when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 29 August 2025.
Check out reviews from past customers who have flown with easyJet and British Airways from London Heathrow Airport to Belfast Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
Had to pay £48 because my personal item was 1cm too big! Not happy! First & last time to fly Easy Jet. This small back pack has been used on many domestic & international flights without a problem. I could have easily put it in my luggage as my bag was 5kg under weight. Instead, I was charged £48 even though it didn’t add any extra weight to the flight and it could easily fit under the seat. Hint: Check the “personal item” size carefully!
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 are the cheapest airlines flying from London Heathrow Airport to Belfast Intl Airport round-trip?
Cheapflights users have booked flights from London Heathrow Airport to Belfast Intl Airport round-trip from £30. Another airline that can offer you cheap pricing is British Airways. These flights start at 76% lower than the current average price 3 months from now.
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 £67). Flying from London Heathrow Airport to Belfast Intl Airport in July is currently the most expensive (average of £90). 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.
Explore flights to Belfast Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 August 2025.
Top 2 airlines flying from Heathrow to Belfast Intl
Discover the top 2 airlines 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 858,174 searches. Data last updated 29 August 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Belfast Intl?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Belfast Intl from Heathrow today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Belfast Intl?
Cheapflights helps you find that perfect flight to Belfast Intl from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Can Cheapflights find flights from Heathrow to Belfast Intl with no change fees?
Yes! Cheapflights helps users easily find flights from Heathrow to Belfast Intl with no change fees.
Can Cheapflights notify me if prices for flights from Heathrow to Belfast Intl become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Heathrow today and book when prices fit your budget.
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