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

Delta, Virgin Atlantic, and Scandinavian Airlines can get you from State of Washington to London in just under 9h 45m. Your travel time can differ by up to 11h 58m. 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 £127. Virgin Atlantic flights start at £199 while deals on British Airways start at £243 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 £642 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 £418.

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 (97%), KLM (96%), SAUDIA (96%).

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.

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Best

Direct

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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 10 November 2026.

Wed 25/1114:35 -

1 stop20h 55m

Wed 2/1220:35 -

1 stop28h 25m

Deal found 8/11£518

Fri 4/1214:35 -

1 stop20h 55m

Wed 9/1212:15 -

1 stop12h 45m

Deal found 5/11£519

Sun 6/1214:35 -

1 stop20h 55m

Sat 12/1220:35 -

1 stop28h 25m

Deal found 5/11£521

Thu 10/1214:35 -

1 stop12h 15m

Fri 25/1212:15 -

1 stop12h 45m

Deal found 5/11£521

Thu 3/1207:45 -

2 stops27h 05m

Wed 9/1219:30 -

2 stops24h 30m

Deal found 5/11£522

Fri 4/1214:35 -

1 stop20h 55m

Thu 10/1212:15 -

1 stop12h 45m

Deal found 8/11£523

Sat 28/1114:35 -

1 stop12h 15m

Sat 12/1220:35 -

1 stop28h 25m

Deal found 9/11£524

Sun 15/1114:35 -

2 stops23h 05m

Wed 18/1118:40 -

2 stops30h 20m

Deal found 7/11£525

Sat 5/1214:35 -

1 stop20h 55m

Sun 13/1212:15 -

1 stop12h 45m

Deal found 10/11£527

Thu 26/1114:35 -

3 stops33h 30m

Thu 3/1217:40 -

3 stops31h 20m

Deal found 8/11£527

Fri 4/1214:35 -

1 stop20h 55m

Sun 13/1212:15 -

1 stop12h 45m

Deal found 8/11£529

Tue 24/1107:45 -

3 stops24h 35m

Tue 1/1211:15 -

3 stops33h 45m

Deal found 5/11£530

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 10 November 2026.

Mon 12/421:50 -

Nonstop9h 45m

Tue 27/417:45 -

Nonstop10h 18m

Deal found 5/11£624

Wed 17/211:57 -

2 stops21h 43m

Wed 24/206:40 -

2 stops23h 24m

Deal found 9/11£632

Wed 13/116:55 -

Nonstop9h 45m

Sun 24/112:20 -

Nonstop10h 25m

Deal found 7/11£659

Wed 13/115:25 -

1 stop16h 20m

Sun 24/110:00 -

1 stop13h 13m

Deal found 8/11£660

Wed 10/219:05 -

1 stop37h 25m

Tue 16/210:05 -

1 stop39h 05m

Deal found 6/11£662

Mon 1/309:00 -

2 stops16h 10m

Wed 3/310:25 -

2 stops18h 57m

Deal found 5/11£692

Sun 7/313:47 -

1 stop14h 33m

Sun 14/314:45 -

1 stop16h 14m

Deal found 8/11£706

Wed 28/406:00 -

1 stop16h 20m

Sat 8/508:55 -

1 stop19h 33m

Deal found 5/11£708

Mon 7/1206:40 -

2 stops20h 10m

Fri 11/1212:15 -

2 stops18h 10m

Deal found 6/11£740

Fri 9/422:03 -

2 stops32h 37m

Sat 17/415:40 -

1 stop13h 00m

Deal found 7/11£905

Tue 16/216:05 -

1 stop15h 40m

Thu 25/210:00 -

2 stops20h 04m

Deal found 6/11£631

Tue 19/116:05 -

1 stop15h 40m

Tue 2/210:00 -

2 stops20h 00m

Deal found 9/11£631

Wed 28/405:20 -

1 stop19h 30m

Sat 8/506:30 -

2 stops16h 15m

Deal found 5/11£703

Wed 13/119:05 -

1 stop19h 30m

Wed 27/110:05 -

1 stop39h 05m

Deal found 5/11£726

Mon 14/1216:50 -

Nonstop9h 50m

Thu 24/1212:20 -

Nonstop10h 30m

Deal found 7/11£735

Thu 11/217:40 -

1 stop34h 40m

Sat 20/214:45 -

1 stop17h 14m

Deal found 9/11£737

Sun 6/1210:10 -

1 stop17h 40m

Thu 10/1216:40 -

1 stop28h 20m

Deal found 9/11£762

Wed 25/1116:50 -

Nonstop9h 50m

Thu 10/1206:30 -

1 stop13h 20m

Deal found 7/11£717

Fri 26/207:40 -

2 stops24h 05m

Fri 5/310:00 -

2 stops20h 05m

Deal found 5/11£671

Wed 23/1219:05 -

1 stop19h 30m

Mon 11/110:05 -

1 stop39h 05m

Deal found 9/11£791

Tue 1/1207:00 -

1 stop14h 55m

Sat 12/1218:00 -

2 stops36h 15m

Deal found 5/11£793

Sat 1/521:50 -

Nonstop9h 45m

Sun 23/506:30 -

1 stop17h 50m

Deal found 5/11£735

Thu 11/205:10 -

2 stops17h 10m

Sat 20/206:30 -

2 stops18h 07m

Deal found 9/11£741

Thu 25/213:13 -

2 stops35h 57m

Tue 2/317:25 -

1 stop31h 45m

Deal found 9/11£827

Wed 16/1207:00 -

1 stop14h 55m

Fri 25/1207:40 -

2 stops21h 22m

Deal found 9/11£831

Tue 24/1106:00 -

1 stop16h 25m

Fri 27/1112:20 -

Nonstop10h 30m

Deal found 6/11£779

Thu 1/413:00 -

1 stop11h 50m

Sat 10/417:45 -

1 stop13h 57m

Deal found 10/11£766

Wed 14/413:12 -

2 stops25h 18m

Tue 27/410:05 -

1 stop39h 30m

Deal found 6/11£845

Wed 3/219:05 -

1 stop37h 25m

Wed 17/217:25 -

2 stops35h 30m

Deal found 6/11£846

Tue 29/1207:15 -

1 stop19h 40m

Wed 6/112:20 -

Nonstop10h 25m

Deal found 5/11£786

Find flight deals from Washington to London

Round-trip from	£496
One-way from	£243
Popular in	June
Cheapest in	January
Average price	£647
Good round-trip deal	£585 or less
Good one-way deal	£262 or less

Icelandair
3/1-19/1
2 total stops
25h 00m total
Washington to London

Search Deals

Iberia
21/4-31/12
1 total stop
19h 25m total
Washington to London

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£88 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 November 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 21/4

06:00-09:25

1 stop19h 25m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£243

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Sun 11/4

22:45-07:30

2 stops24h 45m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£249

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

£249

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 27/2

22:49-07:10

2 stops24h 21m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£252

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Mon 26/4

09:30-16:00

2 stops22h 30m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Thu 11/3

10:10-11:50

1 stop17h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£283

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 1/5

18:35-16:00

1 stop13h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£286

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

£286

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 6/3

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£286

SpokaneLondon

GEG Spokane - LHR London Heathrow

GEGLHR

Spokane

Thu 8/4

17:34-20:00

2 stops18h 26m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£286

Flights are sorted by cheapest return flights first.

Deals found on 8/11

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

GEG-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

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 £542). 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.

Weekly flight availability from State of Washington to London

The most flights from USWA to LON are scheduled on a Thursday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

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

Airfare is below average for this route at the moment.

State of Washington to London flights typically cost between £512 and £788 in January.
The cheapest return price found within the last 5 days was £496 on Icelandair (3 Jan–19 Jan).

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 55 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, Virgin Atlantic, and Scandinavian Airlines can get you from State of Washington to London in just under 9h 45m. Your travel time can differ by up to 11h 58m. 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 £127. Virgin Atlantic flights start at £199 while deals on British Airways start at £243 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 (97%), KLM (96%), SAUDIA (96%).
What are the cheapest flights from State of Washington to London?
On average you can expect to pay £642 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 £418.
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 £542). 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.

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Top 3 airlines flying from Washington to London

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest£492	Average£728	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
British Airways	Cheapest£520	Average£682	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£578	Average£665	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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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 £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 21/4. 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 10 November 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 10 November 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 10 November 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 10 November 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 10 November 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 10 November 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 10 November 2026.

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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 10 November 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 10 November 2026.

The most flights from USWA to LON are scheduled on a Thursday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

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

Airfare is below average for this route at the moment.

State of Washington to London flights typically cost between £512 and £788 in January.The cheapest return price found within the last 5 days was £496 on Icelandair (3 Jan–19 Jan).

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 55 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 10 November 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 10 November 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 10 November 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 10 November 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 10 November 2026.

State of Washington to London flights typically cost between £512 and £788 in January.
The cheapest return price found within the last 5 days was £496 on Icelandair (3 Jan–19 Jan).