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

United Airlines, Scandinavian Airlines, and Delta can get you from State of Washington to London in just under 9h 45m. Your travel time can differ by up to 31h 15m. The distance from State of Washington to London is about 4783 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

What are the cheapest airlines to fly from State of Washington to London one-way?

To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £128. Virgin Atlantic flights start at £200 while deals on British Airways start at £244 one-way.

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 £244 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £471.

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.

£251+ 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 19 October 2026.

Tue 10/1107:45 -

3 stops29h 35m

Tue 17/1118:00 -

3 stops27h 00m

Deal found 19/10£566

Tue 24/1114:35 -

2 stops19h 45m

Tue 1/1208:50 -

2 stops16h 10m

Deal found 18/10£567

Sun 15/1113:50 -

3 stops35h 45m

Sun 22/1118:10 -

3 stops25h 50m

Deal found 18/10£568

Mon 16/1114:35 -

1 stop12h 15m

Tue 24/1120:35 -

1 stop28h 25m

Deal found 16/10£569

Tue 1/1214:35 -

1 stop12h 15m

Tue 8/1212:15 -

1 stop12h 45m

Deal found 16/10£569

Wed 9/1214:35 -

1 stop20h 55m

Thu 17/1220:35 -

1 stop28h 25m

Deal found 16/10£570

Fri 13/1115:13 -

2 stops34h 07m

Mon 16/1106:40 -

2 stops24h 20m

Deal found 16/10£571

Mon 23/1114:35 -

2 stops22h 45m

Tue 8/1220:35 -

1 stop28h 25m

Deal found 16/10£573

Thu 5/1107:45 -

3 stops28h 35m

Thu 12/1119:30 -

2 stops25h 30m

Deal found 18/10£574

Mon 16/1114:35 -

3 stops23h 05m

Mon 30/1118:40 -

3 stops30h 20m

Deal found 16/10£574

Mon 23/1114:35 -

2 stops20h 25m

Tue 8/1208:50 -

2 stops16h 10m

Deal found 16/10£575

Sun 6/1214:35 -

1 stop20h 55m

Fri 11/1212:15 -

1 stop12h 45m

Deal found 17/10£575

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 19 October 2026.

Tue 2/312:30 -

2 stops41h 00m

Fri 5/306:35 -

2 stops22h 24m

Deal found 16/10£569

Mon 11/111:45 -

2 stops21h 55m

Tue 26/106:40 -

2 stops23h 24m

Deal found 17/10£632

Wed 10/216:55 -

Nonstop9h 45m

Tue 16/206:30 -

1 stop13h 17m

Deal found 14/10£645

Sun 31/118:40 -

Nonstop9h 40m

Thu 4/214:45 -

Nonstop10h 05m

Deal found 16/10£649

Wed 13/106:00 -

2 stops25h 45m

Fri 22/110:00 -

1 stop13h 13m

Deal found 15/10£655

Mon 11/119:05 -

1 stop30h 05m

Tue 26/117:25 -

1 stop31h 45m

Deal found 17/10£663

Sun 28/215:00 -

1 stop16h 00m

Sat 6/320:15 -

1 stop24h 50m

Deal found 16/10£677

Tue 24/1116:50 -

Nonstop9h 50m

Fri 27/1112:20 -

Nonstop10h 30m

Deal found 14/10£695

Sun 14/310:38 -

1 stop13h 17m

Sun 28/309:50 -

Nonstop9h 45m

Deal found 16/10£701

Tue 16/210:52 -

2 stops16h 03m

Wed 24/314:40 -

1 stop13h 00m

Deal found 18/10£822

Thu 5/1112:02 -

2 stops14h 53m

Mon 9/1111:55 -

2 stops16h 37m

Deal found 16/10£995

Wed 3/208:30 -

2 stops17h 55m

Wed 24/206:35 -

1 stop14h 25m

Deal found 14/10£649

Tue 2/309:14 -

1 stop19h 06m

Fri 5/314:45 -

1 stop16h 12m

Deal found 16/10£659

Wed 11/1108:30 -

2 stops16h 30m

Wed 18/1110:00 -

1 stop13h 14m

Deal found 14/10£685

Fri 13/1119:05 -

1 stop30h 05m

Wed 25/1110:05 -

1 stop39h 05m

Deal found 18/10£693

Mon 8/305:00 -

2 stops18h 10m

Wed 31/307:25 -

2 stops24h 13m

Deal found 15/10£659

Sun 13/1218:45 -

Nonstop9h 35m

Wed 13/114:45 -

Nonstop10h 05m

Deal found 17/10£685

Mon 14/1209:50 -

1 stop13h 00m

Fri 18/1212:20 -

Nonstop10h 30m

Deal found 17/10£736

Wed 2/1215:14 -

1 stop13h 06m

Wed 9/1214:45 -

1 stop17h 08m

Deal found 18/10£695

Wed 18/1105:00 -

2 stops18h 55m

Wed 25/1109:00 -

2 stops19h 57m

Deal found 15/10£704

Sun 27/1219:05 -

1 stop19h 30m

Thu 7/106:30 -

1 stop18h 40m

Deal found 17/10£807

Fri 20/1107:38 -

1 stop18h 17m

Thu 3/1206:30 -

1 stop13h 20m

Deal found 16/10£761

Tue 1/1215:14 -

1 stop13h 06m

Tue 8/1214:45 -

1 stop17h 08m

Deal found 17/10£695

Wed 30/1205:00 -

1 stop20h 40m

Tue 2/218:00 -

2 stops36h 29m

Deal found 18/10£716

Tue 3/1112:02 -

2 stops14h 53m

Sun 8/1111:55 -

2 stops16h 37m

Deal found 15/10£959

Thu 29/1017:05 -

1 stop15h 40m

Sun 1/1110:00 -

2 stops20h 05m

Deal found 17/10£1,005

Sun 14/211:44 -

1 stop16h 36m

Sat 27/214:45 -

1 stop17h 33m

Deal found 14/10£697

Wed 14/416:46 -

1 stop14h 19m

Sun 25/417:00 -

1 stop13h 57m

Deal found 14/10£701

Thu 12/1113:16 -

2 stops25h 19m

Tue 17/1106:30 -

2 stops24h 37m

Deal found 16/10£1,033

Wed 25/1114:59 -

1 stop13h 21m

Fri 4/1214:45 -

1 stop31h 49m

Deal found 19/10£713

Find flight deals from Washington to London

Round-trip from	£566
One-way from	£251
Popular in	June
Cheapest in	January
Average price	£659
Good one-way deal	£244 or less

United Airlines
2/3-5/3
3 total stops
57h 19m total
Washington to London

Search Deals

Delta
5/4-31/12
2 total stops
17h 45m total
Washington to London

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£95 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

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 5/4

07:15-09:00

2 stops17h 45m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£251

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Fri 26/2

16:55-10:40

Nonstop9h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£263

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Fri 15/1

16:55-10:40

Nonstop9h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£263

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Fri 15/1

06:00-07:50

1 stop17h 50m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£266

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

£277

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 17/4

21:30-15:05

Nonstop9h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£281

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 16/1

16:55-10:40

Nonstop9h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£281

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Fri 9/4

13:22-12:50

1 stop15h 28m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£284

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

£284

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 14/1

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£284

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 58 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 £521). Flying from State of Washington to London in June is currently the most expensive (average of £915). 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.

Weekly flight availability from State of Washington to London

The most flights from USWA to LON are scheduled on a Tuesday (25 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).

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 £548 and £773 in November.
The cheapest return price found within the last 5 days was £566 on Multiple Airlines (16 Nov–30 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 64 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, Scandinavian Airlines, and Delta can get you from State of Washington to London in just under 9h 45m. Your travel time can differ by up to 31h 15m. The distance from State of Washington to London is about 4783 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines to fly from State of Washington to London one-way?
To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at £128. Virgin Atlantic flights start at £200 while deals on British Airways start at £244 one-way.
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 £244 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £471.
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 £521). Flying from State of Washington to London in June is currently the most expensive (average of £915). 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.

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Top 3 airlines flying from Washington to London

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest£495	Average£732	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
British Airways	Cheapest£523	Average£686	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£581	Average£688	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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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.

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Cheap flights from Washington to London from £251

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. 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 19 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 19 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 19 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 19 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 19 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 19 October 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 19 October 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 19 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 19 October 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 19 October 2026.

Find flight deals from Washington to London

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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 19 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.

Weekly flight availability from State of Washington to London

Explore weekly flight availability from Washington to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 October 2026.

The most flights from USWA to LON are scheduled on a Tuesday (25 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).

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 £548 and £773 in November.The cheapest return price found within the last 5 days was £566 on Multiple Airlines (16 Nov–30 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 64 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 cheapest airlines to fly from State of Washington to London one-way?

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?

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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 19 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 19 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 19 October 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 19 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 19 October 2026.

State of Washington to London flights typically cost between £548 and £773 in November.
The cheapest return price found within the last 5 days was £566 on Multiple Airlines (16 Nov–30 Nov).