How long is the flight from State of Washington to London?

United Airlines, Delta, and Scandinavian Airlines can get you from State of Washington to London in just under 20h. Your travel time can differ by up to 15h 03m. The distance from State of Washington to London is about 4807 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from State of Washington to London?

The most popular route from State of Washington to London is Seattle/Tacoma Intl - London Heathrow. You may also consider Seattle/Tacoma Intl - London Gatwick or Seattle/Tacoma Intl - London Stansted.

What are the cheapest flights from State of Washington to London?

On average you can expect to pay £318 for a flight from State of Washington to London. The cheapest flight overall is £243 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £448.

What are the most reliable airlines from State of Washington to London?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to London on time: Scandinavian Airlines (95%), KLM (94%), SAUDIA (94%).

What are the most popular airlines that fly from State of Washington to London?

Before booking your flight from State of Washington to London check out the most popular airlines for this route: Virgin Atlantic, Alaska Airlines or British Airways.

Can I find deals for flights from Washington to London that include hotel bookings?

Yes. In addition to deals on Washington to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Washington to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to London.

Can I find deals for business class flights from Washington to London?

Yes. Cheapflights offers flight deals from Washington to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£243+ Cheap Flights from Washington to London

Cheap flight deals from Washington to London

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Washington to London
Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Tue 17/1107:45 -

3 stops24h 35m

Tue 24/1109:15 -

3 stops35h 45m

Deal found 29/10£552

Mon 9/1114:35 -

1 stop20h 55m

Fri 20/1112:15 -

1 stop12h 45m

Deal found 30/10£555

Sat 14/1113:50 -

3 stops34h 45m

Sat 21/1107:00 -

3 stops22h 57m

Deal found 28/10£555

Wed 25/1114:35 -

1 stop20h 55m

Mon 30/1120:35 -

1 stop28h 25m

Deal found 29/10£555

Sun 8/1114:35 -

1 stop12h 20m

Wed 25/1109:50 -

2 stops37h 32m

Deal found 29/10£556

Thu 12/1114:35 -

1 stop12h 15m

Sat 21/1112:15 -

1 stop12h 45m

Deal found 29/10£557

Thu 5/1107:45 -

3 stops29h 35m

Thu 12/1118:00 -

3 stops27h 00m

Deal found 26/10£558

Mon 16/1107:45 -

2 stops23h 15m

Tue 24/1120:15 -

1 stop23h 45m

Deal found 29/10£558

Fri 11/1214:35 -

1 stop20h 55m

Sun 10/120:35 -

1 stop28h 25m

Deal found 28/10£558

Sun 15/1114:35 -

1 stop20h 55m

Tue 8/1212:15 -

1 stop12h 45m

Deal found 25/10£559

Wed 9/1214:35 -

3 stops21h 35m

Wed 23/1219:30 -

3 stops29h 30m

Deal found 27/10£560

Sun 15/1114:35 -

1 stop12h 15m

Mon 7/1220:35 -

1 stop28h 25m

Deal found 25/10£560

Best flights from Washington to London
Discover carefully curated flight deals from Washington to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Tue 2/312:22 -

1 stop35h 03m

Fri 5/306:35 -

2 stops22h 24m

Deal found 29/10£573

Wed 14/412:00 -

2 stops20h 00m

Tue 20/409:55 -

1 stop15h 32m

Deal found 25/10£632

Wed 13/111:45 -

2 stops22h 45m

Sun 24/106:40 -

2 stops20h 25m

Deal found 25/10£633

Wed 13/116:55 -

Nonstop9h 45m

Sun 24/112:20 -

Nonstop10h 25m

Deal found 25/10£658

Tue 2/309:14 -

1 stop19h 06m

Fri 5/314:45 -

1 stop16h 12m

Deal found 25/10£669

Mon 16/1116:50 -

Nonstop9h 50m

Thu 3/1206:20 -

1 stop15h 30m

Deal found 26/10£720

Sat 13/219:05 -

1 stop30h 05m

Sat 20/210:05 -

1 stop39h 05m

Deal found 26/10£739

Thu 7/117:50 -

1 stop17h 35m

Sun 24/116:10 -

1 stop31h 45m

Deal found 26/10£773

Tue 24/1105:06 -

2 stops21h 44m

Tue 1/1220:35 -

2 stops35h 18m

Deal found 27/10£866

Tue 24/1105:06 -

1 stop17h 54m

Tue 1/1209:25 -

1 stop13h 09m

Deal found 27/10£881

Sun 13/1205:00 -

2 stops22h 50m

Sun 20/1206:30 -

2 stops25h 23m

Deal found 29/10£1,060

Fri 12/213:13 -

2 stops20h 37m

Fri 19/209:00 -

2 stops19h 55m

Deal found 26/10£1,160

Wed 14/406:50 -

2 stops19h 00m

Tue 27/416:25 -

2 stops36h 40m

Deal found 28/10£1,256

Sun 18/405:00 -

1 stop20h 40m

Wed 5/508:45 -

2 stops22h 53m

Deal found 28/10£666

Sun 3/114:25 -

1 stop12h 20m

Fri 22/112:20 -

Nonstop10h 25m

Deal found 26/10£674

Mon 30/1112:31 -

2 stops21h 09m

Wed 16/1206:40 -

2 stops25h 15m

Deal found 27/10£677

Sun 3/116:55 -

Nonstop9h 45m

Sun 24/112:20 -

Nonstop10h 25m

Deal found 29/10£680

Tue 2/315:15 -

1 stop13h 05m

Fri 5/314:45 -

1 stop17h 11m

Deal found 25/10£696

Thu 3/1207:38 -

1 stop15h 12m

Mon 7/1206:30 -

1 stop13h 20m

Deal found 26/10£683

Thu 10/1216:50 -

Nonstop9h 50m

Mon 14/1212:20 -

Nonstop10h 30m

Deal found 26/10£686

Wed 10/305:00 -

2 stops18h 10m

Sun 14/311:35 -

1 stop16h 42m

Deal found 28/10£729

Wed 10/213:18 -

2 stops43h 12m

Tue 16/210:05 -

1 stop39h 05m

Deal found 29/10£845

Mon 30/1116:50 -

Nonstop9h 50m

Thu 3/1206:30 -

1 stop13h 20m

Deal found 28/10£704

Fri 12/205:45 -

2 stops19h 15m

Fri 19/206:30 -

2 stops25h 12m

Deal found 29/10£720

Tue 15/1206:00 -

2 stops25h 45m

Fri 25/1210:00 -

2 stops21h 55m

Deal found 26/10£884

Wed 18/1107:00 -

1 stop16h 25m

Wed 25/1106:35 -

2 stops22h 22m

Deal found 27/10£749

Wed 14/413:12 -

2 stops35h 58m

Tue 27/417:35 -

1 stop31h 45m

Deal found 28/10£848

Sun 13/1215:14 -

1 stop13h 06m

Sun 20/1214:45 -

1 stop17h 08m

Deal found 29/10£858

Sun 3/116:55 -

Nonstop9h 45m

Sun 10/106:30 -

1 stop13h 19m

Deal found 28/10£753

Sat 14/1116:10 -

2 stops31h 30m

Sat 21/1116:40 -

2 stops36h 17m

Deal found 29/10£796

Find flight deals from Washington to London

Round-trip from	£552
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£671
Good one-way deal	£244 or less

17/11-24/11
6 total stops
60h 20m total
Washington to London

Search Deals

Iberia
18/4-31/12
1 total stop
20h 50m total
Washington to London

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£94 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Price to beat on a one-way flight from Washington to London (LON).

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Sun 18/4

07:02-18:25

2 stops27h 23m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£245

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 21/4

13:22-10:30

1 stop13h 08m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£250

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 21/4

15:20-13:45

1 stop14h 25m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£250

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 21/4

07:02-10:10

2 stops19h 08m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£250

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 27/2

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£288

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 26/2

15:30-15:45

1 stop16h 15m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£288

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 2/4

18:35-16:00

1 stop13h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£299

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Tue 24/11

14:35-17:55

3 stops19h 20m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£313

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Mon 30/11

19:29-12:50

3 stops57h 21m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£348

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 18/1

17:50-15:00

1 stop13h 10m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£407

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 57 resultsSorted by cheapest first

...

Best time to book a flight from Washington to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington with our price prediction graph.

SEA-LGW

SEA-LHR

GEG-LHR

ALW-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

USWA-LON

SEA-LGW

SEA-LHR

GEG-LHR

ALW-LHR

What is the cheapest month to book a flight from State of Washington to London?

Currently, January is the cheapest month in which you can book a flight from State of Washington to London (average of £526). Flying from State of Washington to London in June is currently the most expensive (average of £917). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WA to LON?

When flying from State of Washington to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from State of Washington to London?

Airfare is typical for this route at the moment.

State of Washington to London flights typically cost between £506 and £779 in November.
The cheapest return price found within the last 5 days was £552 on Multiple Airlines (17 Nov–24 Nov).

How far ahead should I book a flight from State of Washington to London?

The best time to book flights from State of Washington to London is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

How long is the flight from State of Washington to London?
United Airlines, Delta, and Scandinavian Airlines can get you from State of Washington to London in just under 20h. Your travel time can differ by up to 15h 03m. The distance from State of Washington to London is about 4807 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the most popular routes from State of Washington to London?
The most popular route from State of Washington to London is Seattle/Tacoma Intl - London Heathrow. You may also consider Seattle/Tacoma Intl - London Gatwick or Seattle/Tacoma Intl - London Stansted.
What are the most reliable airlines from State of Washington to London?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to London on time: Scandinavian Airlines (95%), KLM (94%), SAUDIA (94%).
What are the cheapest flights from State of Washington to London?
On average you can expect to pay £318 for a flight from State of Washington to London. The cheapest flight overall is £243 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £448.
Can I find deals for flights from Washington to London that include hotel bookings?
Yes. In addition to deals on Washington to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Washington to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to London.
Can I find deals for business class flights from Washington to London?
Yes. Cheapflights offers flight deals from Washington to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from State of Washington to London?
Currently, January is the cheapest month in which you can book a flight from State of Washington to London (average of £526). Flying from State of Washington to London in June is currently the most expensive (average of £917). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Hounslow

Luton

Milton Keynes

Slough

Wembley

Gatwick

Ilford

Hayes

Croydon

Barnet

Eastbourne

Brentford

Southend-on-Sea

Southall

Enfield

Watford

Kingston upon Thames

Dagenham

Dover

Folkestone

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to England

Flights by cabin class

London flight routes

Other flight options

Popular flights

Top destinations

Alternative routes for Washington to London

John F Kennedy Intl to Heathrow flights

Newark to Heathrow flights

John F Kennedy Intl to Gatwick flights

Boston to Heathrow flights

Newark to Gatwick flights

LaGuardia to Heathrow flights

John F Kennedy Intl to London City flights

John F Kennedy Intl to Stansted flights

Dulles Intl to Heathrow flights

Baltimore to Heathrow flights

LaGuardia to Gatwick flights

San Francisco to Heathrow flights

Los Angeles to Heathrow flights

Newark to London City flights

O'Hare Intl to Heathrow flights

Newark to Luton flights

Seattle to Heathrow flights

Newark to Stansted flights

Dallas/Fort Worth to Heathrow flights

Boston to Gatwick flights

Orlando to Heathrow flights

Boston to London City flights

Atlanta to Heathrow flights

Reagan-National to Heathrow flights

Boston to Stansted flights

Dulles Intl to Gatwick flights

Miami to Heathrow flights

Dulles Intl to London City flights

San Francisco to Gatwick flights

Denver to Heathrow flights

San Francisco to Stansted flights

Boston to Luton flights

Hobby to Heathrow flights

Los Angeles to Gatwick flights

Baltimore to Gatwick flights

San Francisco to London City flights

Reagan-National to Gatwick flights

Philadelphia to Heathrow flights

Los Angeles to London City flights

Los Angeles to Stansted flights

O'Hare Intl to Gatwick flights

Dulles Intl to Luton flights

O'Hare Intl to Stansted flights

George Bush Intcntl to Heathrow flights

Sky Harbor Intl to Heathrow flights

O'Hare Intl to London City flights

Baltimore to Luton flights

San Francisco to Luton flights

Top 3 airlines flying from Washington to London

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest£494	Average£732	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
British Airways	Cheapest£522	Average£685	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£580	Average£668	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

Fly with Cheapflights

How does Cheapflights help users find flights from Washington to London?

When you search for this flight from Washington to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Washington to London?

Millions of users choose and trust Cheapflights to book the best flight deals from Washington to London for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Washington to London with no change fees?

Yes! Cheapflights helps users easily find flights from Washington to London with no change fees.

Can Cheapflights notify me if prices for flights from Washington to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Washington to London from £243

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Washington to London

Cheapest flights from Washington to LondonExplore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Washington to LondonDiscover carefully curated flight deals from Washington to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Washington to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Washington to LondonExplore direct flight options from Washington to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Explore direct flight options from Washington to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Washington to LondonSearch for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Washington to London

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington to London that are best for you.

Best time to book a flight from Washington to London

Have a flexible travel schedule? Discover the best time to fly to London from Washington with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from State of Washington to London?

What is the cheapest time of day to fly from WA to LON?

Find hourly flight availability from Washington to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 October 2026.

When flying from State of Washington to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from State of Washington to London?

Airfare is typical for this route at the moment.

State of Washington to London flights typically cost between £506 and £779 in November.The cheapest return price found within the last 5 days was £552 on Multiple Airlines (17 Nov–24 Nov).

How far ahead should I book a flight from State of Washington to London?

The best time to book flights from State of Washington to London is 51 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

How long is the flight from State of Washington to London?

What are the most popular routes from State of Washington to London?

What are the most reliable airlines from State of Washington to London?

What are the cheapest flights from State of Washington to London?

Can I find deals for flights from Washington to London that include hotel bookings?

How can I find direct flights from Washington to London?

Can I find deals for business class flights from Washington to London?

What is the cheapest month to book a flight from State of Washington to London?

Travelling to a place near London?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington to London

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to London by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to England

Book a non-stop flight to one of these other cities located in England.

Search flights from Washington to London by cabin class

Find flights from Washington to London, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 30 October 2026.

Washington and London flights

Browse other Washington and London flight options. Last updated on 30 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Washington to London flights

Consider these flights travelling from Washington to London.

Top 3 airlines flying from Washington to London

Fly with Cheapflights

How does Cheapflights help users find flights from Washington to London?

Why should you use Cheapflights to find cheap flight tickets from Washington to London?

Can Cheapflights find flights from Washington to London with no change fees?

Can Cheapflights notify me if prices for flights from Washington to London become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Washington to London
Explore the most affordable flight options available from Washington to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Washington to London
Discover carefully curated flight deals from Washington to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Direct flights from Washington to London
Explore direct flight options from Washington to London based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Washington to London
Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

State of Washington to London flights typically cost between £506 and £779 in November.
The cheapest return price found within the last 5 days was £552 on Multiple Airlines (17 Nov–24 Nov).