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

United Airlines, Turkish Airlines, and Delta can get you from State of Washington to London in just under 15h 05m. Your travel time can differ by up to 22h 20m. 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.

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 £806 for a flight from State of Washington to London. The cheapest flight overall is £240 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £464.

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%).

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 2 October 2026.

Mon 19/1022:59 -

2 stops38h 36m

Thu 22/1017:00 -

2 stops38h 13m

Deal found 1/10£568

Thu 12/1117:50 -

1 stop13h 10m

Mon 16/1110:25 -

1 stop13h 30m

Deal found 1/10£569

Sun 29/1114:35 -

1 stop12h 15m

Tue 15/1212:15 -

1 stop12h 45m

Deal found 30/9£569

Sun 8/1110:10 -

3 stops23h 20m

Sun 15/1121:00 -

2 stops23h 00m

Deal found 30/9£570

Sun 15/1114:35 -

2 stops23h 05m

Sun 22/1113:55 -

3 stops35h 05m

Deal found 1/10£570

Sun 8/1110:10 -

3 stops29h 25m

Sat 21/1119:20 -

3 stops31h 02m

Deal found 30/9£571

Sun 8/1116:15 -

1 stop19h 10m

Thu 12/1110:25 -

1 stop13h 30m

Deal found 30/9£571

Tue 3/1108:40 -

3 stops29h 00m

Sat 7/1110:35 -

3 stops34h 25m

Deal found 1/10£571

Thu 3/1217:50 -

1 stop13h 10m

Mon 7/1210:25 -

1 stop13h 30m

Deal found 1/10£572

Fri 13/1114:35 -

1 stop20h 55m

Wed 18/1120:35 -

1 stop28h 25m

Deal found 30/9£572

Wed 11/1114:35 -

3 stops33h 50m

Sat 21/1107:55 -

2 stops17h 05m

Deal found 29/9£572

Tue 3/1107:45 -

2 stops25h 05m

Sat 7/1118:40 -

3 stops34h 19m

Deal found 1/10£572

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 2 October 2026.

Tue 2/312:30 -

2 stops37h 10m

Fri 5/309:00 -

2 stops22h 38m

Deal found 27/9£575

Sun 22/1115:00 -

2 stops23h 15m

Mon 30/1106:05 -

2 stops17h 50m

Deal found 26/9£643

Sun 14/312:35 -

1 stop15h 05m

Wed 31/306:30 -

2 stops21h 22m

Deal found 27/9£662

Tue 20/1019:15 -

1 stop37h 25m

Tue 27/1017:20 -

1 stop31h 50m

Deal found 26/9£662

Tue 2/309:14 -

1 stop19h 06m

Fri 5/314:45 -

1 stop16h 12m

Deal found 27/9£665

Sat 7/1110:39 -

2 stops21h 21m

Tue 17/1106:40 -

2 stops21h 33m

Deal found 28/9£669

Sun 1/1116:50 -

Nonstop9h 50m

Thu 12/1106:30 -

1 stop13h 17m

Deal found 28/9£679

Sun 17/106:00 -

2 stops25h 45m

Sun 24/110:00 -

1 stop13h 13m

Deal found 28/9£699

Thu 24/1217:50 -

1 stop17h 35m

Thu 31/1210:25 -

1 stop13h 30m

Deal found 26/9£868

Sun 22/1119:05 -

1 stop37h 15m

Tue 1/1217:20 -

1 stop31h 50m

Deal found 29/9£663

Sun 14/312:35 -

1 stop15h 05m

Fri 2/408:40 -

2 stops22h 58m

Deal found 28/9£665

Tue 2/305:20 -

2 stops21h 30m

Fri 5/311:35 -

1 stop17h 27m

Deal found 1/10£686

Sun 14/307:05 -

1 stop17h 00m

Fri 2/410:50 -

1 stop20h 48m

Deal found 29/9£689

Mon 1/216:06 -

1 stop12h 14m

Mon 8/214:45 -

1 stop17h 08m

Deal found 27/9£699

Tue 3/1116:50 -

Nonstop9h 50m

Sat 7/1106:30 -

1 stop13h 17m

Deal found 1/10£717

Wed 21/1019:15 -

1 stop30h 40m

Wed 28/1010:55 -

1 stop38h 15m

Deal found 30/9£663

Tue 10/1105:10 -

2 stops18h 05m

Tue 17/1106:30 -

2 stops25h 29m

Deal found 28/9£686

Wed 18/1105:00 -

2 stops16h 55m

Wed 25/1106:35 -

2 stops22h 22m

Deal found 1/10£687

Wed 9/1216:50 -

Nonstop9h 50m

Fri 18/1212:20 -

Nonstop10h 30m

Deal found 28/9£701

Thu 12/1106:00 -

2 stops19h 00m

Thu 19/1110:00 -

2 stops30h 45m

Deal found 28/9£729

Wed 4/1120:05 -

1 stop29h 05m

Wed 11/1117:25 -

1 stop31h 45m

Deal found 1/10£669

Tue 2/315:15 -

1 stop13h 05m

Fri 5/314:45 -

1 stop17h 11m

Deal found 26/9£740

Fri 13/1115:13 -

1 stop12h 57m

Fri 20/1114:55 -

1 stop16h 54m

Deal found 28/9£817

Wed 18/1106:25 -

2 stops17h 40m

Wed 25/1106:30 -

2 stops16h 16m

Deal found 29/9£686

Tue 27/1007:00 -

1 stop17h 25m

Tue 3/1110:05 -

1 stop16h 36m

Deal found 28/9£704

Sun 22/1115:25 -

1 stop16h 20m

Tue 8/1210:00 -

2 stops21h 55m

Deal found 29/9£734

Sun 15/1105:08 -

1 stop23h 02m

Sun 22/1114:55 -

1 stop16h 54m

Deal found 1/10£822

Tue 27/1013:00 -

2 stops17h 45m

Tue 3/1106:30 -

2 stops18h 28m

Deal found 28/9£686

Thu 22/1019:15 -

1 stop37h 35m

Mon 26/1010:55 -

1 stop38h 15m

Deal found 28/9£693

Wed 11/1115:13 -

1 stop13h 07m

Wed 18/1114:45 -

1 stop17h 01m

Deal found 27/9£787

Find flight deals from Washington to London

Round-trip from	£568
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£619
Good round-trip deal	£677 or less
Good one-way deal	£294 or less

Scandinavian Airlines
19/10-22/10
4 total stops
76h 49m total
Washington to London

Search Deals

Alaska Airlines
29/12-31/12
1 total stop
14h 59m total
Washington to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£104 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 October 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

Wed 30/12

05:00-05:55

2 stops16h 55m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£247

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Mon 28/12

23:42-05:55

1 stop22h 13m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£247

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Tue 29/12

19:03-20:10

2 stops17h 07m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Tue 9/3

15:20-12:20

1 stop13h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Mon 15/2

15:20-12:20

1 stop13h 00m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Wed 10/3

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

Sun 7/3

07:02-07:25

1 stop16h 23m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Tue 29/12

23:42-06:40

2 stops22h 58m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Tue 16/3

11:30-12:00

1 stop17h 30m

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

Flights are sorted by cheapest return flights first.

Deals found on 28/9

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.

SEA-LHR

SEA-LGW

SEA-STN

GEG-LHR

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

SEA-LHR

SEA-LGW

SEA-STN

GEG-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 £524). Flying from State of Washington to London in June is currently the most expensive (average of £921). 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 (20 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 £538 and £749 in October.
The cheapest return price found within the last 5 days was £568 on Scandinavian Airlines (19 Oct–22 Oct).

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, Turkish Airlines, and Delta can get you from State of Washington to London in just under 15h 05m. Your travel time can differ by up to 22h 20m. 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 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 £806 for a flight from State of Washington to London. The cheapest flight overall is £240 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £464.
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 £921). 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£499	Average£738	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
British Airways	Cheapest£527	Average£692	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£531	Average£644	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.

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

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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 £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 29/12. 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 2 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 2 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 2 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 2 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 2 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 2 October 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 2 October 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 2 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 2 October 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 2 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 2 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 2 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 (20 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 £538 and £749 in October.The cheapest return price found within the last 5 days was £568 on Scandinavian Airlines (19 Oct–22 Oct).

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 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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Other flights 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 2 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 2 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 2 October 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 2 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 2 October 2026.

State of Washington to London flights typically cost between £538 and £749 in October.
The cheapest return price found within the last 5 days was £568 on Scandinavian Airlines (19 Oct–22 Oct).