Cheap flights from Boston to London Heathrow

Q: What are the cheapest airlines?

Air Canada. These airlines usually offer the cheapest flights from Boston to London Heathrow.

Q: Can I fly direct to London Heathrow?

Finnair, Iberia Airlines, KLM, Virgin Atlantic. You can fly non-stop from Boston to London Heathrow with these airlines.

Q: What airlines fly indirectly?

Air Canada, JetBlue, British Airways, Delta Air Lines, Aer Lingus. These airlines fly from Boston to London Heathrow, but you’ll have at least one layover.

Q: How long is the flight?

6 hrs 30 mins. This is the shortest flight time from Boston to London Heathrow.

from as little as £323

2 nights in London, departing Boston on 24 / Jan / 2025 with Lufthansa (price found 38 hours ago)

Subject to availability, prices correct of the last 24 hours

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Cheap return flights from Boston to London Heathrow

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The Boston / London Heathrow route

All 5243 km of it

Cheap flight deals for this route

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London Heathrow flight facts

What you need to know

What are the cheapest airlines?

Air Canada

These airlines usually offer the cheapest flights from Boston to London Heathrow.

Can I fly direct to London Heathrow?

Finnair
Iberia Airlines
KLM
Virgin Atlantic

You can fly non-stop from Boston to London Heathrow with these airlines.

What airlines fly indirectly?

Air Canada
JetBlue
British Airways
Delta Air Lines
Aer Lingus

These airlines fly from Boston to London Heathrow, but you’ll have at least one layover.

How long is the flight?

6 hrs 30 mins

This is the shortest flight time from Boston to London Heathrow.

Alternative flights from the UK to London Heathrow

Check out prices for other routes

Boston to London City Airport

from £635 pp

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Boston to London Gatwick

from £397 pp

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Alternative flights from Boston

You might find cheaper flights nearby

Copenhagen from Boston

from £495 pp

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24 / Jan / 2025 is currently the lowest priced day of the year to fly the Boston/London Heathrow route. There are around 46 flights on any given week from the UK to London Heathrow and the cheapest month to fly right now is January.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)

LOWEST

2 °C

AVG

11 °C

HIGHEST

24 °C

Rainfall (mm)

LOWEST

38.1 mm

AVG

52.5 mm

HIGHEST

66 mm

Key facts about London Heathrow

Currency

British pound

Language

English

Timezone

0 hrs behind GMT

How to get cheap flights from Boston to London Heathrow

Tips and advice from our flight experts

We've scanned every flight from Boston to London to find the best deals. If you want a cheap flight, it's best to be as flexible as you can on dates. At the moment, the cheapest flight is on 24 / Jan / 2025. If that day's no good for you, try searching by month to see some alternative dates.

London Heathrow is just one of the airports in London. If you're not set on a specific airport, try changing your search from London Heathrow to London to see a broader range of flights – they might be cheaper. It usually takes about 8 hrs 55 mins to fly 5243 km to London Heathrow.

46 flights go to or via London every week. Cheap flights Currently, the cheapest price available is £323. The most popular airline is Air Canada but do spend some time checking all your options – they aren’t necessarily the cheapest airline to book with.

If you're planning on going to London during this time, you could take a look at other airport options. Or you could try to get a last-minute bargain.