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

Delta, United Airlines, and KLM can get you from State of Washington to London in just under 15h 05m. Your travel time can differ by up to 19h 50m. The distance from State of Washington to London is about 4763 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 £129. Virgin Atlantic flights start at £202 while deals on British Airways start at £246 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 £1,126 for a flight from State of Washington to London. The cheapest flight overall is £239 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £424.

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.

£249+ 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 26 September 2026.

Sun 11/1013:59 -

1 stop15h 06m

Tue 27/1009:50 -

1 stop17h 18m

Deal found 23/9£562

Wed 4/1106:22 -

1 stop21h 13m

Wed 25/1106:30 -

2 stops24h 14m

Deal found 21/9£564

Mon 5/1015:25 -

1 stop11h 55m

Tue 13/1006:30 -

2 stops16h 20m

Deal found 23/9£564

Wed 28/1013:25 -

1 stop13h 35m

Tue 3/1111:30 -

2 stops20h 29m

Deal found 23/9£564

Wed 18/1109:33 -

2 stops15h 52m

Wed 25/1106:30 -

2 stops21h 39m

Deal found 23/9£567

Sun 11/1006:22 -

1 stop19h 53m

Tue 27/1016:35 -

2 stops38h 09m

Deal found 23/9£568

Wed 30/916:19 -

1 stop17h 16m

Thu 15/1010:55 -

1 stop15h 34m

Deal found 22/9£569

Wed 7/1015:30 -

1 stop16h 05m

Tue 27/1011:20 -

2 stops19h 30m

Deal found 23/9£573

Mon 30/1114:35 -

1 stop16h 55m

Mon 14/1211:40 -

1 stop13h 20m

Deal found 24/9£582

Sun 4/1007:00 -

1 stop15h 45m

Sun 11/1007:25 -

1 stop17h 34m

Deal found 22/9£582

Thu 5/1114:35 -

1 stop12h 20m

Fri 13/1111:55 -

1 stop13h 05m

Deal found 22/9£583

Thu 15/1021:50 -

Nonstop9h 45m

Thu 22/1006:30 -

1 stop18h 05m

Deal found 21/9£583

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 26 September 2026.

Wed 28/1009:30 -

1 stop18h 10m

Tue 3/1106:30 -

2 stops18h 28m

Deal found 21/9£564

Tue 2/312:30 -

1 stop34h 55m

Fri 5/306:35 -

2 stops25h 03m

Deal found 25/9£570

Sun 14/312:35 -

1 stop15h 05m

Fri 2/410:50 -

1 stop13h 28m

Deal found 22/9£583

Fri 6/1107:05 -

1 stop16h 00m

Fri 13/1106:20 -

2 stops25h 39m

Deal found 23/9£602

Sun 14/207:30 -

1 stop18h 30m

Sun 21/214:55 -

Nonstop9h 55m

Deal found 22/9£603

Fri 6/1107:05 -

1 stop16h 00m

Fri 13/1112:20 -

1 stop19h 39m

Deal found 23/9£607

Mon 9/1115:13 -

1 stop13h 07m

Wed 18/1114:45 -

1 stop17h 01m

Deal found 23/9£638

Sun 14/211:45 -

2 stops20h 15m

Sat 20/206:40 -

2 stops23h 22m

Deal found 25/9£638

Wed 10/219:05 -

1 stop37h 15m

Tue 16/217:20 -

1 stop31h 50m

Deal found 22/9£663

Sat 10/1020:45 -

2 stops33h 55m

Sun 8/1116:10 -

1 stop31h 45m

Deal found 25/9£866

Mon 9/1115:25 -

1 stop16h 20m

Fri 13/1110:00 -

2 stops20h 04m

Deal found 23/9£882

Wed 18/1116:25 -

1 stop16h 05m

Wed 25/1108:40 -

2 stops19h 29m

Deal found 24/9£564

Fri 6/1107:00 -

1 stop16h 05m

Fri 13/1106:30 -

2 stops16h 16m

Deal found 22/9£595

Sun 8/1106:00 -

2 stops25h 45m

Tue 10/1110:00 -

2 stops21h 00m

Deal found 21/9£613

Tue 1/1205:00 -

2 stops18h 05m

Tue 8/1206:30 -

2 stops21h 47m

Deal found 22/9£567

Sun 10/107:20 -

2 stops24h 40m

Sat 23/106:40 -

2 stops23h 22m

Deal found 24/9£638

Tue 2/315:46 -

1 stop12h 34m

Fri 5/314:45 -

1 stop14h 10m

Deal found 21/9£641

Thu 12/1119:05 -

1 stop30h 50m

Tue 17/1117:20 -

1 stop31h 50m

Deal found 22/9£663

Fri 6/1112:55 -

2 stops23h 40m

Fri 13/1109:30 -

2 stops19h 28m

Deal found 22/9£665

Tue 2/315:15 -

1 stop13h 05m

Fri 5/314:45 -

1 stop17h 11m

Deal found 21/9£641

Tue 13/1017:30 -

Nonstop9h 50m

Sat 31/1006:20 -

1 stop15h 30m

Deal found 21/9£583

Sun 8/1114:30 -

2 stops20h 00m

Tue 24/1110:20 -

2 stops19h 44m

Deal found 24/9£650

Mon 1/216:55 -

Nonstop9h 45m

Fri 5/206:30 -

1 stop13h 17m

Deal found 25/9£650

Tue 2/305:20 -

1 stop20h 20m

Fri 5/311:10 -

2 stops41h 52m

Deal found 23/9£675

Thu 15/1019:15 -

1 stop30h 40m

Thu 22/1017:35 -

1 stop31h 45m

Deal found 21/9£678

Tue 10/1116:05 -

1 stop15h 40m

Tue 17/1110:00 -

2 stops21h 00m

Deal found 26/9£695

Mon 28/1223:15 -

1 stop23h 35m

Mon 15/212:20 -

Nonstop10h 25m

Deal found 21/9£595

Sun 15/1112:31 -

2 stops21h 09m

Sun 22/1106:40 -

2 stops25h 17m

Deal found 22/9£660

Fri 6/1115:13 -

1 stop13h 07m

Fri 13/1114:45 -

1 stop17h 01m

Deal found 22/9£675

Mon 9/1115:13 -

1 stop12h 57m

Mon 16/1114:55 -

1 stop16h 51m

Deal found 25/9£817

Find flight deals from Washington to London

Round-trip from	£562
One-way from	£249
Popular in	June
Cheapest in	January
Average price	£697
Good round-trip deal	£677 or less
Good one-way deal	£294 or less

KLM
11/10-27/10
2 total stops
32h 24m total
Washington to London

Search Deals

Delta
28/12-31/12
2 total stops
18h 30m total
Washington to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£106 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Price to beat on a round-trip flight from Washington to London (LON).

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

Mon 28/12

17:40-20:10

2 stops18h 30m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Tue 29/12

05:00-05:55

2 stops16h 55m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 30/12

07:45-07:25

1 stop15h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Sat 13/3

19:44-12:20

1 stop32h 36m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Sat 13/3

16:00-06:40

2 stops30h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Fri 19/3

18:00-10:40

Nonstop9h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£282

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 31/10

19:05-11:50

1 stop33h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£283

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Thu 25/3

18:00-10:40

Nonstop9h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£283

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 7/11

12:20-20:35

3 stops24h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£286

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 2/11

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£286

Flights are sorted by cheapest return flights first.

Deals found on 21/9

Showing 1-10 of 60 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.

GEG-LHR

SEA-STN

SEA-LHR

SEA-LGW

PSC-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

GEG-LHR

SEA-STN

SEA-LHR

SEA-LGW

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 £524). Flying from State of Washington to London in June is currently the most expensive (average of £920). 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 (24 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 £505 and £720 in November.
The cheapest return price found within the last 5 days was £582 on Multiple Airlines (7 Nov–16 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?
Delta, United Airlines, and KLM can get you from State of Washington to London in just under 15h 05m. Your travel time can differ by up to 19h 50m. The distance from State of Washington to London is about 4763 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 £129. Virgin Atlantic flights start at £202 while deals on British Airways start at £246 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 £1,126 for a flight from State of Washington to London. The cheapest flight overall is £239 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £424.
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 £524). Flying from State of Washington to London in June is currently the most expensive (average of £920). 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
British Airways	Cheapest£467	Average£691	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£498	Average£737	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Virgin Atlantic	Cheapest£531	Average£643	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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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?

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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 £249

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/12. 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 26 September 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 26 September 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 26 September 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 26 September 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 26 September 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 26 September 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 26 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 26 September 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 26 September 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 26 September 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 26 September 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 26 September 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 (24 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 £505 and £720 in November.The cheapest return price found within the last 5 days was £582 on Multiple Airlines (7 Nov–16 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 26 September 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 26 September 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 26 September 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 26 September 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 26 September 2026.

State of Washington to London flights typically cost between £505 and £720 in November.
The cheapest return price found within the last 5 days was £582 on Multiple Airlines (7 Nov–16 Nov).