Cheap flights from Belfast Intl Airport to London Heathrow Airport from £86
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 18/12. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — LHR
14 Dec — 21 Dec1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Belfast Intl to London Heathrow are usually found in January or October, booked 78 days in advance, depart on a Thursday or Tuesday and return on a Wednesday
Cheap flight deals from Belfast Intl to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to Heathrow (LHR). 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 14 November 2025.
Explore the most affordable flight options available from Belfast Intl to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 November 2025.
Thu 27/1112:10BFS - LHR
2 stops9h 25mMultiple Airlines
Sun 30/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 13/11£218
Sun 16/1106:00BFS - LHR
2 stops30h 40mMultiple Airlines
Wed 19/1118:30LHR - BFS
2 stops23h 00mMultiple Airlines
Deal found 11/11£267
Fri 21/1117:30BFS - LHR
1 stop14h 30mMultiple Airlines
Sun 23/1119:20LHR - BFS
1 stop12h 50mMultiple Airlines
Deal found 13/11£283
Fri 28/1110:00BFS - LHR
2 stops31h 30mMultiple Airlines
Sun 30/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 13/11£283
Mon 8/1208:40BFS - LHR
1 stop7h 55mMultiple Airlines
Tue 9/1214:45LHR - BFS
1 stop6h 55mMultiple Airlines
Deal found 11/11£286
Wed 10/1210:10BFS - LHR
1 stop6h 25mMultiple Airlines
Wed 17/1211:45LHR - BFS
2 stops9h 55mMultiple Airlines
Deal found 12/11£294
Sun 16/1106:00BFS - LHR
2 stops12h 55mMultiple Airlines
Sun 23/1118:30LHR - BFS
2 stops15h 55mMultiple Airlines
Deal found 13/11£313
Sat 15/1107:10BFS - LHR
2 stops15h 30mMultiple Airlines
Sun 16/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 11/11£331
Best flights from Belfast Intl to Heathrow
Discover carefully curated flight deals from Belfast Intl to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 November 2025.
Thu 27/1112:10BFS - LHR
2 stops9h 25mMultiple Airlines
Sun 30/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 13/11£218
Fri 28/1110:00BFS - LHR
2 stops31h 30mMultiple Airlines
Sun 30/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 13/11£283
Mon 8/1208:40BFS - LHR
1 stop7h 55mMultiple Airlines
Tue 9/1214:45LHR - BFS
1 stop6h 55mMultiple Airlines
Deal found 11/11£286
Wed 14/117:30BFS - LHR
1 stop14h 25mMultiple Airlines
Mon 19/106:20LHR - BFS
1 stop7h 30mMultiple Airlines
Deal found 13/11£289
Wed 10/1210:10BFS - LHR
1 stop6h 25mMultiple Airlines
Wed 17/1211:45LHR - BFS
2 stops9h 55mMultiple Airlines
Deal found 12/11£294
Mon 19/109:55BFS - LHR
1 stop6h 10mMultiple Airlines
Wed 21/114:45LHR - BFS
1 stop6h 55mMultiple Airlines
Deal found 12/11£306
Fri 13/207:30BFS - LHR
1 stop6h 10mMultiple Airlines
Sun 15/216:20LHR - BFS
2 stops5h 55mMultiple Airlines
Deal found 11/11£328
Wed 3/1207:10BFS - LHR
2 stops10h 50mMultiple Airlines
Wed 3/1220:05LHR - BFS
2 stops18h 00mMultiple Airlines
Deal found 12/11£334
Wed 28/117:30BFS - LHR
1 stop14h 25mMultiple Airlines
Sun 1/208:40LHR - BFS
2 stops11h 15mMultiple Airlines
Deal found 13/11£346
Last-minute flights from Belfast Intl to Heathrow
Discover last-minute flight deals from Belfast Intl to Heathrow. Data last updated 14 November 2025 and is based on user searches.
Sat 15/1107:10BFS - LHR
2 stops15h 30mMultiple Airlines
Sun 16/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 11/11£331
Sun 16/1106:00BFS - LHR
2 stops30h 40mMultiple Airlines
Wed 19/1118:30LHR - BFS
2 stops23h 00mMultiple Airlines
Deal found 11/11£267
Sun 16/1106:00BFS - LHR
2 stops12h 55mMultiple Airlines
Sun 23/1118:30LHR - BFS
2 stops15h 55mMultiple Airlines
Deal found 13/11£313
Fri 21/1117:30BFS - LHR
1 stop14h 30mMultiple Airlines
Sun 23/1119:20LHR - BFS
1 stop12h 50mMultiple Airlines
Deal found 13/11£283
Thu 27/1112:10BFS - LHR
2 stops9h 25mMultiple Airlines
Sun 30/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 13/11£218
Fri 28/1110:00BFS - LHR
2 stops31h 30mMultiple Airlines
Sun 30/1112:25LHR - BFS
2 stops22h 00mMultiple Airlines
Deal found 13/11£283
Mon 8/1208:40BFS - LHR
1 stop7h 55mMultiple Airlines
Tue 9/1214:45LHR - BFS
1 stop6h 55mMultiple Airlines
Deal found 11/11£286
Wed 10/1210:10BFS - LHR
1 stop6h 25mMultiple Airlines
Wed 17/1211:45LHR - BFS
2 stops9h 55mMultiple Airlines
Deal found 12/11£294
One-way flights from Belfast Intl to Heathrow
Search for one-way flight options from Belfast Intl to Heathrow. Find affordable one-way fares based on user searches. Data last updated 14 November 2025.
Thu 18/1209:05BFS - LHR
1 stop6h 50mMultiple Airlines
Deal found 12/11£86
Sun 15/215:45BFS - LHR
2 stops23h 00mMultiple Airlines
Deal found 11/11£93
Mon 15/1206:50BFS - LHR
2 stops11h 25mMultiple Airlines
Deal found 11/11£98
Wed 19/1117:30BFS - LHR
1 stop20h 55mMultiple Airlines
Deal found 13/11£100
Wed 24/1208:50BFS - LHR
2 stops10h 05mMultiple Airlines
Deal found 12/11£103
Tue 16/1207:00BFS - LHR
2 stops8h 35mMultiple Airlines
Deal found 13/11£105
Fri 5/1208:05BFS - LHR
1 stop23h 25mMultiple Airlines
Deal found 13/11£106
Sat 6/1208:30BFS - LHR
2 stops8h 45mMultiple Airlines
Deal found 11/11£108
Thu 15/108:15BFS - LHR
2 stops10h 35mMultiple Airlines
Deal found 11/11£109
Mon 8/1214:30BFS - LHR
1 stop23h 55mMultiple Airlines
Deal found 11/11£109
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast Intl to Heathrow 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 14 November 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to London Heathrow Airport that are best for you.
Fly from
Belfast Intl
Fly to
Heathrow
Route
Depart
Return
Price
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Thu 27/11
12:10-21:35
2 stops9h 25m
London Heathrow
Sun 30/11
12:25-10:25
2 stops22h 00m
£218
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Fri 28/11
10:00-17:30
2 stops31h 30m
London Heathrow
Sun 30/11
12:25-10:25
2 stops22h 00m
£283
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Mon 8/12
08:40-16:35
1 stop7h 55m
London Heathrow
Tue 9/12
14:45-21:40
1 stop6h 55m
£286
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Wed 14/1
17:30-07:55
1 stop14h 25m
London Heathrow
Mon 19/1
06:20-13:50
1 stop7h 30m
£289
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Wed 10/12
10:10-16:35
1 stop6h 25m
London Heathrow
Wed 17/12
11:45-21:40
2 stops9h 55m
£294
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Mon 19/1
09:55-16:05
1 stop6h 10m
London Heathrow
Wed 21/1
14:45-21:40
1 stop6h 55m
£306
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Fri 13/2
07:30-13:40
1 stop6h 10m
London Heathrow
Sun 15/2
16:20-22:15
2 stops5h 55m
£328
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Wed 3/12
07:10-18:00
2 stops10h 50m
London Heathrow
Wed 3/12
20:05-14:05
2 stops18h 00m
£334
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Wed 28/1
17:30-07:55
1 stop14h 25m
London Heathrow
Sun 1/2
08:40-19:55
2 stops11h 15m
£346
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Mon 15/12
06:50-18:15
2 stops11h 25m
£98
Flights are sorted by cheapest return flights first.
Deals found on 11/11
Showing 1-10 of 19 results
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Best time to book a flight from Belfast Intl to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Belfast Intl 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 Belfast Intl Airport to London Heathrow Airport
Prices
Delays
How far ahead should I book a flight from Belfast Intl Airport to London Heathrow Airport?
Use this chart to determine the optimal time to book a return flight from Belfast Intl to Heathrow. Price data was last updated on 7 November 2025.
To ensure you get the cheapest price possible for a flight from Belfast Intl Airport to London Heathrow Airport, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Belfast Intl Airport to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to London Heathrow Airport (average of £39). Flying from Belfast Intl Airport to London Heathrow Airport in May is currently the most expensive (average of £84). 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 BFS to LHR?
Find hourly flight availability from Belfast Intl to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 November 2025.
It’s optimal to fly from Belfast Intl Airport to London Heathrow Airport in the evening. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight at midday.
What is the cheapest day to fly from Belfast Intl Airport to London Heathrow Airport?
Use this chart to determine the cheapest time to fly return from Belfast Intl to Heathrow. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Belfast Intl Airport to London Heathrow Airport flight should consider departing on Saturday at midday when fares are most often at their lowest. Tuesday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Belfast to London delayed?
About 100% of weekly flights between Belfast and London have experienced delays in the past year, with the average delay time being 121 minutes.
What is the most punctual flight time for Belfast to London flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Wednesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Belfast to London flights?
Over the past year, British Airways have had the lowest number of delays on this route, with just 100% of flights being delayed.
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 14 November 2025.
Check out reviews from past customers who have flown with easyJet and British Airways from Belfast Intl Airport to London Heathrow 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.
Service and quality and the price is great .definitely recomondable .
Related info for your journey
Find useful and relevant information for your journey from Belfast Intl to Heathrow. 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 Belfast Intl Airport to London Heathrow Airport round-trip?
easyJet, at £31, was found to be the cheapest airline from Belfast Intl Airport to London Heathrow Airport. An alternate airline flying to your destination would be British Airways. easyJet is priced at 75% lower than the current average price of a flight leaving 3 months from now.
Can I find deals for business class flights from Belfast Intl to Heathrow?
Yes. Cheapflights offers flight deals from Belfast Intl to Heathrow 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 Belfast Intl Airport to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Belfast Intl Airport to London Heathrow Airport (average of £39). Flying from Belfast Intl Airport to London Heathrow Airport in May is currently the most expensive (average of £84). 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 Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 14 November 2025.
Browse through other flights departing from Belfast Intl. Flights are based on user searches made on Cheapflights and were last updated on 14 November 2025.
Top 2 airlines flying from Belfast Intl to Heathrow
Discover the top 2 airlines that operate flights from Belfast Intl to Heathrow. 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 14 November 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 Belfast Intl to Heathrow?
Cheapflights makes it easy to find Belfast Intl to Heathrow flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Belfast Intl to Heathrow?
Millions of users choose and trust Cheapflights to book the best flight deals from Belfast Intl to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Belfast Intl to Heathrow with no change fees?
Yes, we can. To see specific flights from Belfast Intl to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Belfast Intl to Heathrow become cheaper?
Yes, Cheapflights offers price alerts on Belfast Intl to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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