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.

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.

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.

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.

Question 5

Which airlines fly most frequently between London and Washington?

Accepted Answer

London and Washington are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (21 flights per week), American Airlines (14 flights per week), and Air France (14 flights per week).

Question 6

Which airlines fly most frequently between London and Washington?

Accepted Answer

London and Washington are connected by different airlines. The airlines that fly that route the most regularly are Alaska Airlines (21 flights per week), American Airlines (14 flights per week), and Air France (14 flights per week).

Question 7

Which cabin class options are there for flights between London and Washington?

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 8

Which cabin class options are there for flights between London and Washington?

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 9

Which airlines provide the cheapest flights from London to Washington?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from London to Washington were found on Icelandair ($618) and United Airlines ($731).

Question 10

Which airlines provide the cheapest flights from London to Washington?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from London to Washington were found on Icelandair ($618) and United Airlines ($731).

Question 11

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

Accepted Answer

Your flight ticket price will generally be cheaper if you fly to Washington on a Monday and more expensive on a Friday. On your return trip to London, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

Question 12

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

Accepted Answer

Your flight ticket price will generally be cheaper if you fly to Washington on a Monday and more expensive on a Friday. On your return trip to London, you should consider flying back on a Wednesday, and avoid Fridays for better deals.

Question 13

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 afternoon, when round-trip flights cost $841 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the evening, which is peak travel time and where the average cost of a ticket is $886.

Question 14

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 afternoon, when round-trip flights cost $841 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Washington is generally in the evening, which is peak travel time and where the average cost of a ticket is $886.

Question 15

What is the cheapest month to fly from London to Washington?

Accepted Answer

The cheapest month for flights from London to Washington is October, when tickets cost $359 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,502 and $1,200 respectively.

Question 16

What is the cheapest month to fly from London to Washington?

Accepted Answer

The cheapest month for flights from London to Washington is October, when tickets cost $359 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,502 and $1,200 respectively.

Question 17

What is the cheapest London to Washington flight route?

Accepted Answer

The cheapest ticket to Washington from London found in the last 5 days was to Seattle, at $403 round-trip. The most popular route is from London Heathrow Airport (LHR) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 5 days was $403.

Question 18

What is the cheapest London to Washington flight route?

Accepted Answer

The cheapest ticket to Washington from London found in the last 5 days was to Seattle, at $403 round-trip. The most popular route is from London Heathrow Airport (LHR) to Seattle (SEA), and the cheapest round-trip airline ticket found on this route in the last 5 days was $403.

Question 19

How far in advance should I book a flight from London to Washington?

Accepted Answer

To get a below average price on the flight from London to Washington, you should book around 5 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Question 20

How far in advance should I book a flight from London to Washington?

Accepted Answer

To get a below average price on the flight from London to Washington, you should book around 5 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Question 21

Which airlines fly non-stop between London and Washington?

Accepted Answer

There are 6 airlines that fly nonstop from London to Washington. They are: American Airlines, KLM, Alaska Airlines, Delta, Virgin Atlantic and British Airways. The cheapest price of all airlines flying this route was found with KLM at $485 for a round-trip flight to Seattle (SEA). On average, KLM offers the best prices for nonstop flights between London and Washington.

Question 22

Which airlines fly non-stop between London and Washington?

Accepted Answer

There are 6 airlines that fly nonstop from London to Washington. They are: American Airlines, KLM, Alaska Airlines, Delta, Virgin Atlantic and British Airways. The cheapest price of all airlines flying this route was found with KLM at $485 for a round-trip flight to Seattle (SEA). On average, KLM offers the best prices for nonstop flights between London and Washington.

Question 23

What’s the earliest departure time from London to Washington?

Accepted Answer

The earliest flight from London to Washington departs at 9:50 am, landing in Seattle at 11:35 am.

Question 24

How many flights are there between London and Washington per day?

Accepted Answer

Each day, there are 5 nonstop flights that take off from London and land in Washington, with an average flight time of 10h 00m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 35 flights and there are the same amount of flights each day (5).

Question 25

How many flights are there between London and Washington per day?

Accepted Answer

Each day, there are 5 nonstop flights that take off from London and land in Washington, with an average flight time of 10h 00m. The most common departure time is 5:00 pm and most flights take off in the afternoon. Each week, there are 35 flights and there are the same amount of flights each day (5).

Question 26

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 routes to Washington from London are to Seattle, which takes 16h 21m, Spokane, which takes 18h 27m, and Pasco, which takes 18h 37m.

Question 27

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 routes to Washington from London are to Seattle, which takes 16h 21m, Spokane, which takes 18h 27m, and Pasco, which takes 18h 37m.

Question 28

What’s the latest departure time from London to Washington?

Accepted Answer

If you prefer to fly at night, the latest flight from London to Washington jets off at 6:30 pm and lands in Seattle at 8:42 pm.

Question 29

Can I save money by flying with a layover from London to Washington?

Accepted Answer

No, with an average price for the route of $737, prices are generally cheapest when you fly direct.

Question 30

Can I save money by flying with a layover from London to Washington?

Accepted Answer

No, with an average price for the route of $737, prices are generally cheapest when you fly direct.

Question 31

How much is a round-trip flight from London to State of Washington?

Accepted Answer

Flight prices are below average for this route right now.Flights to State of Washington from London usually cost between $731 and $962 in September.
The lowest price found in the past 5 days was $599 on Icelandair (Sep 1-Oct 31).

Low season	February
High season	August
Cheapest flight	$395

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KAYAK's insights & trends for London to Washington flights

How much is a round-trip flight from London to State of Washington?

What is the cheapest London to Washington flight route?

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

Can I save money by flying with a layover from London to Washington?

What is the cheapest month to fly from London to Washington?

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

How far in advance should I book a flight from London to Washington?

Which airlines fly non-stop between London and Washington?

Which airlines fly most frequently between London and Washington?

Which airlines provide the cheapest flights from London to Washington?

How long does a flight from London to Washington take?

Which cabin class options are there for flights between London and Washington?

How many flights are there between London and Washington per day?

What’s the earliest departure time from London to Washington?

What’s the latest departure time from London to Washington?

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