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

United Airlines, KLM, and Delta can get you from State of Washington to London in just under 9h 50m. Your travel time can differ by up to 27h 20m. 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 £200 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 £317 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 £480.

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.

£244+ 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 25 October 2026.

Wed 30/1214:35 -

1 stop12h 15m

Sun 10/120:35 -

1 stop28h 25m

Deal found 22/10£556

Mon 23/1114:35 -

3 stops35h 00m

Tue 8/1206:40 -

2 stops18h 20m

Deal found 22/10£557

Wed 4/1114:50 -

2 stops22h 55m

Wed 11/1119:30 -

3 stops30h 52m

Deal found 22/10£557

Sun 15/1114:35 -

1 stop20h 55m

Tue 8/1212:15 -

1 stop12h 45m

Deal found 25/10£557

Mon 16/1114:35 -

2 stops22h 45m

Mon 23/1118:20 -

3 stops30h 40m

Deal found 23/10£558

Mon 7/1214:35 -

1 stop12h 15m

Tue 26/112:15 -

1 stop12h 45m

Deal found 25/10£559

Mon 7/1214:35 -

3 stops34h 00m

Mon 14/1219:30 -

3 stops29h 30m

Deal found 23/10£560

Tue 17/1114:35 -

1 stop12h 15m

Thu 10/1212:15 -

1 stop12h 45m

Deal found 21/10£560

Tue 8/1214:35 -

1 stop20h 55m

Tue 15/1212:15 -

1 stop12h 45m

Deal found 23/10£560

Mon 9/1114:35 -

1 stop20h 55m

Sun 13/1220:35 -

1 stop28h 25m

Deal found 21/10£561

Sun 1/1114:35 -

1 stop20h 55m

Wed 11/1112:15 -

1 stop12h 45m

Deal found 22/10£562

Tue 24/1107:45 -

3 stops25h 10m

Tue 1/1209:15 -

2 stops35h 45m

Deal found 23/10£563

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 25 October 2026.

Tue 2/312:30 -

2 stops37h 10m

Fri 5/309:00 -

2 stops19h 59m

Deal found 21/10£572

Tue 17/1116:50 -

Nonstop9h 50m

Thu 26/1106:30 -

1 stop13h 17m

Deal found 20/10£602

Tue 24/1116:50 -

Nonstop9h 50m

Tue 8/1212:20 -

Nonstop10h 30m

Deal found 20/10£608

Wed 14/414:30 -

2 stops19h 10m

Tue 27/407:05 -

2 stops22h 57m

Deal found 22/10£622

Wed 13/116:55 -

Nonstop9h 45m

Sun 24/108:55 -

1 stop14h 18m

Deal found 24/10£649

Tue 2/305:06 -

1 stop23h 14m

Fri 5/314:45 -

1 stop31h 42m

Deal found 20/10£658

Tue 8/1212:30 -

1 stop14h 45m

Tue 15/1206:35 -

2 stops19h 18m

Deal found 24/10£702

Mon 14/1216:50 -

Nonstop9h 50m

Mon 21/1212:20 -

Nonstop10h 30m

Deal found 23/10£708

Mon 16/1117:50 -

1 stop17h 35m

Mon 7/1210:25 -

1 stop13h 30m

Deal found 21/10£716

Wed 14/413:12 -

2 stops36h 43m

Tue 27/417:35 -

1 stop31h 45m

Deal found 24/10£864

Tue 24/1105:06 -

1 stop17h 54m

Tue 1/1209:25 -

1 stop13h 09m

Deal found 24/10£878

Wed 7/409:50 -

2 stops23h 50m

Tue 20/407:05 -

2 stops22h 57m

Deal found 25/10£623

Tue 2/309:14 -

1 stop19h 06m

Fri 5/314:45 -

1 stop16h 12m

Deal found 20/10£658

Fri 22/107:20 -

2 stops24h 40m

Sat 6/217:00 -

2 stops39h 09m

Deal found 25/10£631

Wed 14/407:00 -

2 stops16h 10m

Sun 25/411:45 -

2 stops19h 57m

Deal found 20/10£714

Tue 17/1107:00 -

1 stop16h 25m

Tue 24/1109:00 -

2 stops19h 57m

Deal found 24/10£741

Mon 23/1123:07 -

2 stops1h 53m

Tue 8/1216:45 -

1 stop30h 28m

Deal found 22/10£758

Sun 15/1114:07 -

2 stops15h 43m

Fri 27/1106:30 -

2 stops18h 18m

Deal found 24/10£759

Wed 14/413:23 -

1 stop17h 42m

Sun 25/417:00 -

1 stop15h 18m

Deal found 20/10£699

Sun 15/1115:00 -

1 stop16h 00m

Sat 12/1210:25 -

1 stop34h 40m

Deal found 21/10£770

Sun 13/1216:50 -

Nonstop9h 50m

Wed 23/1208:40 -

1 stop35h 10m

Deal found 21/10£722

Wed 9/1215:25 -

1 stop16h 20m

Wed 16/1210:00 -

2 stops20h 02m

Deal found 25/10£764

Sun 15/1111:22 -

1 stop16h 38m

Fri 27/1113:45 -

1 stop15h 12m

Deal found 24/10£768

Thu 19/1106:25 -

1 stop16h 40m

Wed 25/1106:30 -

2 stops16h 16m

Deal found 25/10£791

Tue 24/1105:06 -

2 stops17h 44m

Tue 1/1212:35 -

2 stops19h 18m

Deal found 21/10£870

Mon 16/1116:50 -

Nonstop9h 50m

Wed 9/1212:20 -

Nonstop10h 30m

Deal found 21/10£723

Mon 28/1212:15 -

2 stops22h 15m

Tue 5/118:40 -

2 stops35h 24m

Deal found 24/10£729

Tue 8/1215:14 -

1 stop13h 06m

Tue 15/1214:45 -

1 stop17h 08m

Deal found 24/10£734

Fri 19/313:16 -

2 stops26h 19m

Sat 27/317:25 -

1 stop30h 55m

Deal found 23/10£903

Sun 10/114:40 -

2 stops34h 55m

Sun 21/320:15 -

1 stop27h 40m

Deal found 24/10£849

Find flight deals from Washington to London

Round-trip from	£556
One-way from	£244
Popular in	June
Cheapest in	January
Average price	£669
Good one-way deal	£243 or less

Lufthansa
11/4-14/4
3 total stops
53h 23m total
Washington to London

Search Deals

Icelandair
4/12-31/12
1 total stop
12h 15m 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 (£17 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

Wed 21/4

13:22-10:30

1 stop13h 08m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£246

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 - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sat 27/2

18:40-12:20

Nonstop9h 40m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£260

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 28/1

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£276

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 22/1

15:25-15:45

1 stop16h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£276

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Thu 28/1

07:15-15:45

2 stops24h 30m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£279

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Fri 16/4

13:30-16:00

1 stop18h 30m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£283

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 6/2

16:05-15:45

1 stop15h 40m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£283

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Fri 26/2

08:40-11:50

1 stop19h 10m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£284

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

£287

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Showing 1-10 of 59 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-LHR

SEA-LGW

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

GEG-LHR

SEA-LHR

SEA-LGW

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 £525). Flying from State of Washington to London in June is currently the most expensive (average of £914). 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 Saturday (23 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 £539 and £774 in April.
The cheapest return price found within the last 5 days was £556 on Lufthansa (11 Apr–14 Apr).

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, KLM, and Delta can get you from State of Washington to London in just under 9h 50m. Your travel time can differ by up to 27h 20m. 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 £200 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 (95%), KLM (94%), SAUDIA (94%).
What are the cheapest flights from State of Washington to London?
On average you can expect to pay £317 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 £480.
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 £525). Flying from State of Washington to London in June is currently the most expensive (average of £914). 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£493	Average£729	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
British Airways	Cheapest£521	Average£683	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£579	Average£666	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?

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 £244

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. 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 25 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 25 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 25 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 25 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 25 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 25 October 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 25 October 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 25 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 25 October 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 25 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 25 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 25 October 2026.

The most flights from USWA to LON are scheduled on a Saturday (23 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 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 £539 and £774 in April.The cheapest return price found within the last 5 days was £556 on Lufthansa (11 Apr–14 Apr).

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 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 25 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 25 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 25 October 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 25 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 25 October 2026.

State of Washington to London flights typically cost between £539 and £774 in April.
The cheapest return price found within the last 5 days was £556 on Lufthansa (11 Apr–14 Apr).