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Cheap flights from London Heathrow to Washington DC

Q: How much are flights normally?

£ 383. If you see flights from London Heathrow to Washington DC for less than this, you've found a good deal.

Q: When is the best time to book cheap flights?

21 weeks. If you want cheap flights from London Heathrow to Washington DC, this is the best time to book.

Q: What are the cheapest airlines?

Finnair, JetBlue, British Airways, Aer Lingus, Iceland Air. These airlines usually offer the cheapest flights from London Heathrow to Washington DC.

Q: Can I fly direct to Washington DC?

Finnair, Lufthansa, Virgin Atlantic, British Airways, KLM. You can fly non-stop from London Heathrow to Washington DC with these airlines.

Q: What airlines fly indirectly?

Air Canada, Brussels Airlines, Aer Lingus, TAP Air Portugal, SWISS. These airlines fly from London Heathrow to Washington DC, but you’ll have at least one layover.

Q: When is high season?

June. This is the most expensive time to fly to Washington DC. If this is when you want to go, book your flight from London Heathrow in advance.

Q: When is the cheapest time to fly?

December. Flights from London Heathrow to Washington DC are usually cheaper at this time of year.

Q: How long is the flight?

8 hrs. This is the shortest flight time from London Heathrow to Washington DC.

Q: How long should I stay in Washington DC?

7 days. Most people spend this amount of time in Washington DC.

from as little as £477

7 nights in Washington DC, departing London Heathrow on 27 / Oct / 2022 with Iceland Air (price found 14 hours ago)

Subject to availability, prices correct of the last 24 hours

Cheap return flights from London Heathrow to Washington DC

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The London Heathrow / Washington DC route

All 5906 km of it

Cheap flight deals for this route

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Washington DC flight facts

What you need to know

How much are flights normally?

£ 383

If you see flights from London Heathrow to Washington DC for less than this, you've found a good deal.

When is the best time to book cheap flights?

21 weeks

If you want cheap flights from London Heathrow to Washington DC, this is the best time to book.

What are the cheapest airlines?

Finnair
JetBlue
British Airways
Aer Lingus
Iceland Air

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

Can I fly direct to Washington DC?

Finnair
Lufthansa
Virgin Atlantic
British Airways
KLM

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

What airlines fly indirectly?

Air Canada
Brussels Airlines
Aer Lingus
TAP Air Portugal
SWISS

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

When is high season?

June

This is the most expensive time to fly to Washington DC. If this is when you want to go, book your flight from London Heathrow in advance.

When is the cheapest time to fly?

December

Flights from London Heathrow to Washington DC are usually cheaper at this time of year.

How long is the flight?

8 hrs

This is the shortest flight time from London Heathrow to Washington DC.

How long should I stay in Washington DC?

7 days

Most people spend this amount of time in Washington DC.

Alternative flights from the UK to Washington DC

Check out prices for other routes

London to Washington DC

from £450 pp

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Manchester to Washington DC

from £502 pp

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Edinburgh to Washington DC

from £513 pp

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Birmingham to Washington DC

from £512 pp

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London City Airport to Washington DC

from £588 pp

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London Gatwick to Washington DC

from £450 pp

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Alternative flights from London Heathrow

You might find cheaper flights nearby

Washington DC Ronald Reagan Washington National Airport from London Heathrow

from £533 pp

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Washington DC Washington Dulles International Airport from London Heathrow

from £477 pp

Find flights

Today alone, Netflights has searched over 17,073 flights. 27 / Oct / 2022 is currently the lowest priced day of the year to fly the London Heathrow/Washington DC route. There are around 2,810 flights on any given week from the UK to Washington DC and the cheapest month to fly right now is October.

Min / Max Temperature (°C)

LOWEST

-3 °C

AVG

13 °C

HIGHEST

31 °C

Rainfall (mm)

LOWEST

73 mm

AVG

91.9 mm

HIGHEST

126 mm

Key facts about Washington DC

Currency

United States dollar

Language

English

Timezone

5 hrs behind GMT

How to get cheap flights from London Heathrow to Washington DC

Tips and advice from our flight experts

We've gathered all the available flights from London Heathrow to Washington DC on your chosen dates. We've already searched 17,073 flights worldwide today, to make it easy for you to compare your options. Generally, the most popular airlines are Lufthansa, Air Canada & Finnair. Lufthansa is the most popular, but that doesn’t mean they're the best choice for your travel dates.

Normally, Washington DC Washington Dulles International Airport is the cheapest airport to fly into Washington DC. This isn’t necessarily the case for your chosen dates, but it’s worth bearing in mind. There are 2,810 flights every week to Washington DC, and the flight from London Heathrow normally takes about 12 hrs 35 mins.

Washington DC has two airports, so you have more than one option. It could also be worth changing London Heathrow to include other airports, to see more flights and, possibly, better prices. At the moment, the cheapest flight is £477. The most expensive flights tend to be during June, as demand is high at this time of year.

As well as helping you out with flights, Netflights can find you great prices on accommodation and car hire too. If you’re travelling to the USA in December, you'll find that both flights and hotels will be cheaper, as it's low season.