How does KAYAK find such low prices on flights from London to Washington?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Washington. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Washington?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Washington is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from London to Washington?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Washington with an airline and back with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Washington?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

How long does a flight from London to Washington take?

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from London is to Seattle , which takes 9h 28m .

How long does a flight from London to Washington take?

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from London is to Seattle , which takes 9h 28m .

$160 CHEAP FLIGHTS from London to Washington

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

...and more

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Flight Deals

Book Cheap London to Washington Plane Tickets

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from London to Washington

Wed, Mar 11 - Sun, Mar 15

8:10 pm - 2:19 pm

YXU

SEA

21h 09m

1 stop

11:55 am - 6:35 am

SEA

YXU

15h 40m

2 stops

$378WestJet

Wed, Mar 11 - Sun, Mar 15

8:10 pm - 2:19 pm

YXU

SEA

21h 09m

1 stop

3:10 pm - 6:35 am

SEA

YXU

12h 25m

1 stop

$381WestJet

Sat, May 2 - Sat, May 9

6:15 am - 12:43 pm

YXU

SEA

9h 28m

2 stops

7:35 pm - 5:25 am

SEA

YXU

6h 50m

1 stop

$437Multiple Airlines

Sat, May 2 - Sat, May 9

6:15 am - 6:45 pm

YXU

SEA

15h 30m

1 stop

7:35 pm - 5:25 am

SEA

YXU

6h 50m

1 stop

$444WestJet

Sat, May 2 - Sat, May 9

6:15 am - 4:50 pm

YXU

SEA

13h 35m

2 stops

7:35 pm - 5:25 am

SEA

YXU

6h 50m

1 stop

$464Multiple Airlines

Sun, Mar 8 - Wed, Mar 11

8:10 pm - 10:25 am

YXU

SEA

17h 15m

2 stops

3:10 pm - 6:35 am

SEA

YXU

12h 25m

1 stop

$479WestJet

Mon, Mar 2 - Wed, Mar 4

5:10 am - 2:40 pm

YXU

PDX

12h 30m

2 stops

7:05 pm - 8:46 am

PDX

YXU

10h 41m

2 stops

$589Air Canada

Mon, Mar 2 - Wed, Mar 4

9:25 am - 6:30 pm

YXU

PDX

12h 05m

2 stops

7:05 pm - 8:46 am

PDX

YXU

10h 41m

2 stops

$609Air Canada

Mon, Mar 2 - Wed, Mar 4

9:25 am - 8:43 pm

YXU

PDX

14h 18m

2 stops

12:57 pm - 5:05 pm

PDX

YXU

25h 08m

3 stops

$814United Airlines

Mon, Mar 2 - Wed, Mar 4

5:40 pm - 11:55 am

YXU

PDX

21h 15m

2 stops

12:57 pm - 5:05 pm

PDX

YXU

25h 08m

3 stops

$822United Airlines

Booking Insights

KAYAK's insights & trends for London to Washington flights

Get data-powered insights and trends into flights from London to Washington to help you find the cheapest flights, the best time to fly and much more.

Airlines

In the past 3 days, the cheapest round-trip tickets from London to Washington were found on WestJet ($378) and Air Canada ($589).

Find deals

Low season	May
High season	May
Cheapest flight	$160

Best time to beat the crowds with an average 35% drop in price.

Most popular time to fly and prices are also 35% lower on average.

Flight from London to Seattle

How does KAYAK find such low prices on flights from London to Washington?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Washington.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Washington?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Washington is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from London to Washington?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Washington with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Washington?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Washington

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Popular routes

Return flight deals

Information on your arrival and departure airports

London (YXU)

$160 Find Cheap Flights from London to Washington

KAYAK searches hundreds of travel sites at once for deals on flights to Washington

Book Cheap London to Washington Plane Tickets

Recent round-trip flight deals from London to Washington

Recent one-way flight deals from London to Washington

KAYAK's insights & trends for London to Washington flights

Get data-powered insights and trends into flights from London to Washington to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from London to Washington?

In the past 3 days, the cheapest round-trip tickets from London to Washington were found on WestJet ($378) and Air Canada ($589).

How long does a flight from London to Washington take?

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from London is to Seattle, which takes 9h 28m.

Good to know

FAQs - booking Washington flights

How does KAYAK find such low prices on flights from London to Washington?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Washington.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Washington?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Washington is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from London to Washington?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from London to Washington with an airline and back with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Washington?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Washington up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Washington

Information on your arrival and departure airports

Cabin class types available on flights to Washington

Complete your trip to Washington with a hotel stay or car rental

Flights to other popular destinations

Flights from other airports in London to Washington

Flights from London to popular cities in Washington

Find deals for your return flight