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The Houses of Parliament and Big Ben in London, with a red double-decker bus crossing the Lambeth Bridge.

£224 Cheap Flights from Washington (WAS) to London (LON)

Cheap Flights from Washington to London (WAS-LON)

Prices were available within the past 7 days and start at £224 for one-way flights and £450 for return, for the period specified. Prices and availability are subject to change.
SAS
Sat, 24 Oct - Mon, 26 Oct
IAD
Washington
LHR
London
£450
Return
Found 19 hours ago
Select SAS flight, departing Sat, 24 Oct from Washington to London, returning Mon, 26 Oct, priced at £450 Found 19 hours ago
TAP Portugal
Tue, 13 Oct - Tue, 20 Oct
IAD
Washington
LGW
London
£476
Return
Found 3 hours ago
Select TAP Portugal flight, departing Tue, 13 Oct from Washington to London, returning Tue, 20 Oct, priced at £476 Found 3 hours ago
Icelandair
Fri, 19 Feb - Wed, 24 Feb
BWI
Baltimore
LHR
London
£508
Return
Found 19 hours ago
Select Icelandair flight, departing Fri, 19 Feb from Baltimore to London, returning Wed, 24 Feb, priced at £508 Found 19 hours ago
Icelandair
Sat, 28 Nov - Mon, 11 Jan
BWI
Baltimore
LGW
London
£522
Return
Found 3 days ago
Select Icelandair flight, departing Sat, 28 Nov from Baltimore to London, returning Mon, 11 Jan, priced at £522 Found 3 days ago
American Airlines
Tue, 2 Mar - Sat, 13 Mar
DCA
Washington
LGW
London
£580
Return
Found 2 days ago
Select American Airlines flight, departing Tue, 2 Mar from Washington to London, returning Sat, 13 Mar, priced at £580 Found 2 days ago
JetBlue Airways
Wed, 25 Nov - Thu, 3 Dec
DCA
Washington
LHR
London
£583
Return
Found 3 hours ago
Select JetBlue Airways flight, departing Wed, 25 Nov from Washington to London, returning Thu, 3 Dec, priced at £583 Found 3 hours ago
British Airways
Wed, 6 Jan - Wed, 13 Jan
IAD
Washington
LCY
London
£599
Return
Found 3 hours ago
Select British Airways flight, departing Wed, 6 Jan from Washington to London, returning Wed, 13 Jan, priced at £599 Found 3 hours ago
British Airways
Mon, 7 Dec - Sun, 13 Dec
BWI
Baltimore
LCY
London
£616
Return
Found 3 days ago
Select British Airways flight, departing Mon, 7 Dec from Baltimore to London, returning Sun, 13 Dec, priced at £616 Found 3 days ago
Royal Air Maroc
Fri, 5 Mar - Wed, 24 Mar
IAD
Washington
STN
London
£622
Return
Found 2 hours ago
Select Royal Air Maroc flight, departing Fri, 5 Mar from Washington to London, returning Wed, 24 Mar, priced at £622 Found 2 hours ago
Iberia
Mon, 5 Oct - Wed, 28 Oct
DCA
Washington
LCY
London
£700
Return
Found 13 hours ago
Select Iberia flight, departing Mon, 5 Oct from Washington to London, returning Wed, 28 Oct, priced at £700 Found 13 hours ago

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Heathrow LHR. Cheapest option available. Average driving time to city centre is 28 minutes. Flights from £610
LHR
Heathrow
Cheapest
Average driving time to city centre28 min
Flights from £610
Select flight to Gatwick LGW. Average driving time to city centre is 52 minutes. Flights from £848
LGW
Gatwick
Average driving time to city centre52 min
Flights from £848
Select flight to London City LCY. Closest option available. Average driving time to city centre is 21 minutes. Flights from £814
LCY
London City
Closest
Average driving time to city centre21 min
Flights from £814

Find the cheapest month to fly from Washington (WAS) to London (LON)

October is typically the cheapest month to fly

From £398 - £578 per traveller.

Book with confidence

Compare flights from Washington to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to London. Operating between them flights per day, 10 airlines cover the route. And fly direct, getting you to London in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington, DC to London.

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.

Grab a great deal on your flight from Washington, DC (WAS) to London (LON)

The easiest way to view the best deals on flights from Washington to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington, DC to London start at just £450 and range up to £700.

To find an even better deal, try

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Washington and London
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper

Why you should book your Washington to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington, DC to London for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.

Travel information

Origin airport
Ronald Reagan National Airport
Destination airport
London
Distance
3,677 miles away
Return price
£450
*Available to Expedia members.