Question 1

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

Accepted Answer

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. <a href='/flight-routes/London-YXU/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 2

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

Accepted Answer

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. <a href='/flight-routes/London-YXU/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 3

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

Accepted Answer

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. <a href='/flight-routes/London-YXU/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 4

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

Accepted Answer

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. <a href='/flight-routes/London-YXU/Washington-USWA'>Visit our flight page for the latest deals!>/a>

Question 5

Which airlines provide the cheapest flights from London to Washington?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from London to Washington were found on WestJet ($263) and Air Canada ($274).

Question 6

Which airlines provide the cheapest flights from London to Washington?

Accepted Answer

In the past 3 days, the cheapest round-trip tickets from London to Washington were found on WestJet ($263) and Air Canada ($274).

Question 7

What’s the cheapest day of the week to fly from London to Washington?

Accepted Answer

If you are looking for a flight deal from London to Washington, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Washington, Thursday is the cheapest day to fly and Tuesday is the most expensive.

Question 8

What’s the cheapest day of the week to fly from London to Washington?

Accepted Answer

If you are looking for a flight deal from London to Washington, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Washington, Thursday is the cheapest day to fly and Tuesday is the most expensive.

Question 9

What is the cheapest time of day to fly to Washington?

Accepted Answer

The cheapest time of day to fly to Washington is generally in the evening, when round-trip flights cost $330 on average. Morning departures are around 45% more expensive than evening flights, on average. The most expensive time of day to fly to Washington is generally in the morning, which is peak travel time and where the average cost of a ticket is $477.

Question 10

How long does a flight from London to Washington take?

Accepted Answer

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from London is to Seattle, which takes 7h 36m.

Question 11

How long does a flight from London to Washington take?

Accepted Answer

The duration of a flight to Washington depends on your arrival airport. The shortest route to Washington from London is to Seattle, which takes 7h 36m.

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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.

What’s the cheapest day of the week to fly from London to Washington?

If you are looking for a flight deal from London to Washington, look for departures on Saturdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Washington, Thursday is the cheapest day to fly and Tuesday is the most expensive.

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 ($263) and Air Canada ($274).

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 7h 36m.

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.

What is the cheapest time of day to fly to Washington?

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