Cheap flights from Belfast to London Heathrow Airport from £56
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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Belfast to London Heathrow are usually found in January or November, booked 72 days in advance, depart on a Thursday or Tuesday and return on a Wednesday
Cheap flight deals from Belfast to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) 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 3 July 2025.
Find flight deals from Belfast to Heathrow
Cheapest flights from Belfast to HeathrowExplore the most affordable flight options available from Belfast to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Explore the most affordable flight options available from Belfast to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast 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 3 July 2025.
Use the filters below to find and compare flights from Belfast to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastLondon
BHD - LHR
BHDLHR
Belfast City
Wed 6/8
18:30-19:50
Nonstop1h 20m
London Heathrow
Sun 10/8
08:00-09:20
Nonstop1h 20m
BelfastLondon
BHD - LHR
BHDLHR
Belfast City
Sat 23/8
19:00-20:20
Nonstop1h 20m
London Heathrow
Sun 31/8
21:40-08:35
1 stop10h 55m
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Wed 13/8
13:55-22:35
1 stop8h 40m
London Heathrow
Mon 18/8
18:15-23:00
1 stop4h 45m
BelfastLondon
BHD - LHR
BHDLHR
Belfast City
Wed 17/9
16:05-17:25
Nonstop1h 20m
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Sat 13/9
10:30-17:55
1 stop7h 25m
BelfastLondon
BHD - LHR
BHDLHR
Belfast City
Thu 6/11
13:20-16:40
1 stop3h 20m
Best time to book a flight from Belfast to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from Belfast with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Belfast to London Heathrow Airport
How far ahead should I book a flight from Belfast to London Heathrow Airport?
Use this chart to determine the optimal time to book a return flight from Belfast to Heathrow. Price data was last updated on 27 June 2025.
To ensure you get the cheapest price possible for a flight from Belfast to London Heathrow Airport, you should look to book at least 72 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 to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Belfast to London Heathrow Airport (average of £112). Flying from Belfast to London Heathrow Airport in August is currently the most expensive (average of £164). 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 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 3 July 2025.
It’s optimal to fly from Belfast to London Heathrow Airport in the evening. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight at midday.
What is the cheapest day to fly from Belfast to London Heathrow Airport?
Use this chart to determine the cheapest time to fly return from Belfast to Heathrow. Price data was last updated on 16 December 2024.
Travellers seeking maximum savings on their Belfast 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.
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 3 July 2025.
Get a feel of what it's like to fly with British Airways from Belfast to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Comfort
Entertainment
Overall
Crew
Reviews
Anonymous,May 2025
LAX - LHR
Food
Boarding
Comfort
Entertainment
Overall
Crew
Reviews
Anonymous,May 2025
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Belfast to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Belfast?
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Alternative routes for Belfast to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Belfast to Heathrow
Discover the top 3 airlines that operate flights from Belfast 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 3 July 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Belfast to Heathrow?
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 Heathrow from Belfast today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Belfast to Heathrow?
Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Heathrow for you. Better yet — we are completely free to use.
Can Cheapflights find flights from Belfast to Heathrow with no change fees?
Certainly. Search results for flights to Heathrow from Belfast shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Belfast to Heathrow become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!