Cheap flights from London Heathrow Airport to Boston
Cheapflights Tip: The best prices from London Heathrow to Boston Logan Intl are usually found in February or September, booked 57 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap flight deals from Heathrow to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Boston (BOS). 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 October 2025.
Popular in | December |
|---|---|
Cheapest in | February |
Average price | C$ 803 |
Best time to book a flight from Heathrow to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Heathrow with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Boston
How far ahead should I book a flight from London Heathrow Airport to Boston?
The best time to book flights from London Heathrow Airport to Boston is 57 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 Boston?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of C$ 592). Flying from London Heathrow Airport to Boston in July is currently the most expensive (average of C$ 701). 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 BOS?
It’s optimal to fly from London Heathrow Airport to Boston at noon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the afternoon.
How often are flights from London to Boston delayed?
About 9% of weekly flights between London and Boston have experienced delays in the past year, with the average delay time being 151 minutes.
What is the most punctual flight time for London to Boston flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon 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 Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Boston flights?
Over the past year, Air Canada has had the lowest number of delays on this route, with no flights being classified as delayed.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Boston. 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 Boston
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 October 2025.
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How does Cheapflights help users find flights from Heathrow to Boston?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Boston. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Boston?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from Heathrow.
Can Cheapflights find flights from Heathrow to Boston with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Boston, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Heathrow to Boston become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Boston from Heathrow today and book when prices fit your budget.