Cheap flights from Belfast Intl Airport to London Heathrow Airport from £67
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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Belfast Intl 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 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 12 July 2025.
Find flight deals from Belfast Intl to Heathrow
Cheapest flights from Belfast Intl to HeathrowExplore 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 12 July 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 12 July 2025.
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 12 July 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
Fly to
Route
Depart
Return
Price
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Thu 4/9
15:55-20:40
1 stop4h 45m
London Heathrow
Sun 7/9
21:40-08:10
1 stop10h 30m
BelfastLondon
BFS - LHR
BFSLHR
Belfast Intl
Thu 4/9
06:30-21:25
1 stop14h 55m
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.
Cheapflights Insights
Everything you need to know about your flight from Belfast Intl Airport to London Heathrow Airport
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 27 June 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 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 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 £112). Flying from Belfast Intl Airport 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 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 12 July 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 17% 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.
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.
Travelling to a place near Belfast Intl Airport?
Book flights to Belfast Intl Airport if you plan to visit one of these locationsBrowse 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.
Alternative routes for Belfast Intl to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.
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 12 July 2025.
Fly with Cheapflights
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.