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Washington To London Flights

  • One-Way
  • Round-Trip
  • Multi-City

From

Indira Gandhi International Airport

To

Chhatrapati Shivaji International Airport

DEPARTURE DATE

calender

Friday

Return Date

Book a round trip
to save more

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TRAVELLER & CLASS

1 Traveller

Economy

September
October
November
December
January
February
March
April
August

December is by far the best month, wherein you can get cheapest flights for Washington to London. Meanwhile, December is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.

Things to know
arrow One Way Fare
December

December- During this month the footfall is less so, the flight is gradually inexpensive.

round Round Trip Fare
December

December - is the cheapest month to book round trip flights.

disclDisclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Best Flight From Washington To London

Cheapest
Air Canada
Air Canada

IAD

12:35

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

15h 00m
ellipse
1 Stop

LHR

08:35

London

London Heathrow Airport

Sun, 07 Sep 2025

£406
Icelandair
Icelandair

IAD

20:30

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

10h 25m
ellipse
1 Stop

LHR

11:55

London

London Heathrow Airport

Sun, 07 Sep 2025

£463
Finnair
Finnair

IAD

17:50

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 25m
ellipse
Non Stop

LHR

06:15

London

London Heathrow Airport

Sun, 07 Sep 2025

£548
Delta Airlines
Delta Airlines

IAD

17:50

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 30m
ellipse
Non Stop

LHR

06:20

London

London Heathrow Airport

Sun, 07 Sep 2025

£592
Air France
Air France

IAD

17:50

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 30m
ellipse
Non Stop

LHR

06:20

London

London Heathrow Airport

Sun, 07 Sep 2025

£629
KLM Royal Dutch Airlines
KLM Royal Dutch Airlines

IAD

17:50

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 30m
ellipse
Non Stop

LHR

06:20

London

London Heathrow Airport

Sun, 07 Sep 2025

£629
Air Canada
Air Canada

IAD

17:13

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

10h 22m
ellipse
1 Stop

LHR

08:35

London

London Heathrow Airport

Sun, 07 Sep 2025

£940
Aer Lingus
Aer Lingus

IAD

17:50

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 25m
ellipse
Non Stop

LHR

06:15

London

London Heathrow Airport

Sun, 07 Sep 2025

£1208
American Airlines
American Airlines

IAD

19:25

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 20m
ellipse
Non Stop

LHR

07:45

London

London Heathrow Airport

Sun, 07 Sep 2025

£5874
Iberia
Iberia

IAD

22:45

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 25m
ellipse
Non Stop

LHR

11:10

London

London Heathrow Airport

Sun, 07 Sep 2025

£5904
British Airways
British Airways

IAD

19:25

Washington

Washington Dulles International Airport

Sat , 06 Sep 2025

07h 20m
ellipse
Non Stop

LHR

07:45

London

London Heathrow Airport

Sun, 07 Sep 2025

£5984
ellipse

Early Morning Flight Washington to London

wallet
Cheapest Flight
Found
£406
group
Average Flight
Time
15h 00m
calendra
Date/Time
06 Sep 2025
12:35 AM
plane
Airlines
Air Canada
Ellipse

Late Night Flight Washington to London

wallet
Cheapest Flight
Found
£463
group
Average Flight
Time
10h 25m
calendar
Date/Time
06 Sep 2025
20:30 PM
plane
Airlines
Icelandair

Flights from Washington to London with Easemytrip

Flying from Washington to London has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.

The air route between Washington to London is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Washington Dulles International Airport (IAD) and London Heathrow Airport (LHR). You can expect a flight distance of approximately 5901 km, and most direct services cover it in around 13:39.

Let’s take a closer look at everything you need to know before booking your flight from Washington to London.

Travel Overview: Washington to London

Flight Details Information
Route Distance 5901 km
Average Flight Time 13:39 hrs
Departure Airport Washington Dulles International Airport (IAD)
Arrival Airport London Heathrow Airport (LHR)
Cabin Classes Available Economy Class, Premium Economy, Business Class, First Class
Direct Flights YES
Common Airlines Air Canada, Icelandair, Finnair, Delta Airlines

The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.

Read more

FAQs about flights from Washington to London

Are there direct flights from Washington to London?

How early should I book?

Which airlines offer the most frequent service?

Is it cheaper to fly round-trip or one-way?

Can I mix airlines for departure and return?

Is it possible to change or cancel my booking after confirmation?

Can I book additional baggage or in-flight services in advance?