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 15h 40m. Your travel time can differ by up to 5h 41m. The distance from State of Washington to London is about 4807 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 £126. Virgin Atlantic flights start at £197 while deals on British Airways start at £240 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 £1,112 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 £429.

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%), SAUDIA (95%), KLM (92%).

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, British Airways or Alaska Airlines.

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.

£178+ 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 10 September 2026.

Tue 6/1015:55 -

1 stop17h 45m

Wed 21/1010:35 -

2 stops44h 29m

Deal found 5/9£553

Wed 14/1019:00 -

1 stop17h 20m

Tue 20/1013:05 -

1 stop12h 50m

Deal found 8/9£555

Mon 5/1019:00 -

2 stops15h 50m

Sat 10/1005:55 -

1 stop15h 50m

Deal found 5/9£556

Sun 20/915:55 -

2 stops19h 20m

Fri 2/1019:55 -

2 stops25h 50m

Deal found 5/9£558

Sun 27/919:00 -

3 stops35h 55m

Tue 6/1011:00 -

2 stops17h 40m

Deal found 6/9£559

Mon 19/1015:40 -

2 stops22h 05m

Tue 27/1006:20 -

2 stops18h 40m

Deal found 7/9£559

Sat 3/1015:55 -

1 stop18h 35m

Sat 10/1006:40 -

2 stops15h 05m

Deal found 5/9£559

Fri 2/1015:55 -

1 stop15h 00m

Mon 5/1020:10 -

2 stops25h 35m

Deal found 5/9£560

Tue 22/915:55 -

1 stop17h 45m

Thu 1/1019:30 -

1 stop26h 15m

Deal found 4/9£560

Fri 6/1114:35 -

3 stops34h 00m

Wed 25/1119:30 -

2 stops29h 30m

Deal found 8/9£561

Wed 14/1015:40 -

2 stops21h 35m

Thu 22/1009:25 -

2 stops16h 30m

Deal found 7/9£561

Sun 27/915:55 -

1 stop21h 45m

Fri 2/1006:40 -

1 stop15h 05m

Deal found 4/9£561

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 September 2026.

Mon 19/1015:40 -

2 stops22h 05m

Tue 27/1006:20 -

2 stops18h 40m

Deal found 7/9£559

Tue 3/1116:05 -

1 stop15h 40m

Sun 8/1110:00 -

1 stop13h 14m

Deal found 9/9£585

Wed 24/211:25 -

2 stops20h 20m

Sun 7/310:00 -

2 stops20h 20m

Deal found 9/9£603

Wed 2/1210:39 -

2 stops21h 21m

Thu 10/1219:30 -

2 stops32h 54m

Deal found 9/9£624

Sun 31/118:50 -

Nonstop9h 30m

Thu 4/214:45 -

Nonstop9h 55m

Deal found 6/9£638

Tue 13/1019:15 -

1 stop37h 25m

Thu 22/1017:35 -

1 stop31h 45m

Deal found 4/9£649

Mon 1/213:39 -

2 stops19h 26m

Mon 15/219:05 -

2 stops36h 02m

Deal found 7/9£683

Fri 5/310:10 -

1 stop17h 40m

Fri 12/307:30 -

2 stops18h 39m

Deal found 4/9£689

Sun 25/1012:29 -

1 stop15h 11m

Wed 4/1106:30 -

2 stops16h 21m

Deal found 7/9£714

Sun 31/117:45 -

Nonstop9h 35m

Tue 16/211:50 -

1 stop18h 10m

Deal found 9/9£753

Fri 23/1015:30 -

1 stop13h 50m

Sat 31/1009:30 -

2 stops18h 43m

Deal found 7/9£793

Mon 19/1019:00 -

1 stop11h 40m

Sun 1/1111:55 -

1 stop13h 05m

Deal found 4/9£809

Sun 3/114:35 -

1 stop16h 30m

Sun 10/106:00 -

1 stop19h 00m

Deal found 8/9£570

Sat 19/917:30 -

Nonstop9h 50m

Sun 27/906:15 -

1 stop13h 00m

Deal found 9/9£609

Wed 24/206:00 -

2 stops17h 15m

Sun 7/313:45 -

1 stop29h 50m

Deal found 9/9£619

Tue 16/207:20 -

2 stops24h 40m

Sat 20/217:00 -

2 stops37h 02m

Deal found 6/9£624

Fri 6/1114:35 -

2 stops23h 05m

Wed 11/1108:50 -

2 stops16h 10m

Deal found 4/9£581

Tue 13/1019:15 -

1 stop37h 25m

Tue 20/1017:35 -

1 stop31h 45m

Deal found 6/9£649

Sat 24/1021:29 -

1 stop31h 51m

Sat 31/1014:45 -

1 stop15h 17m

Deal found 6/9£686

Wed 17/211:30 -

2 stops22h 10m

Wed 24/218:40 -

2 stops32h 25m

Deal found 4/9£624

Thu 3/1210:25 -

2 stops21h 20m

Sun 13/1210:00 -

2 stops20h 09m

Deal found 9/9£633

Sun 25/1019:10 -

2 stops19h 20m

Sat 31/1006:00 -

2 stops19h 00m

Deal found 7/9£585

Sun 7/216:05 -

3 stops30h 25m

Sat 20/206:35 -

2 stops35h 05m

Deal found 5/9£709

Sun 4/1007:02 -

2 stops17h 23m

Tue 20/1018:35 -

2 stops32h 36m

Deal found 5/9£713

Wed 11/1119:05 -

1 stop19h 30m

Wed 18/1110:05 -

1 stop39h 05m

Deal found 8/9£655

Tue 20/1017:30 -

Nonstop9h 50m

Fri 23/1006:30 -

1 stop13h 22m

Deal found 8/9£666

Sun 31/117:45 -

Nonstop9h 35m

Thu 18/208:20 -

1 stop19h 22m

Deal found 9/9£753

Fri 5/307:20 -

2 stops24h 40m

Fri 12/306:40 -

2 stops23h 40m

Deal found 4/9£634

Mon 14/1218:55 -

Nonstop9h 25m

Sun 20/1214:45 -

Nonstop10h 05m

Deal found 4/9£698

Thu 22/1008:30 -

2 stops16h 50m

Thu 29/1006:50 -

2 stops21h 06m

Deal found 7/9£713

Find flight deals from Washington to London

Round-trip from	£553
One-way from	£178
Popular in	June
Cheapest in	January
Average price	£670
Good round-trip deal	£661 or less
Good one-way deal	£276 or less

Scandinavian Airlines
6/10-21/10
3 total stops
62h 14m total
Washington to London

Search Deals

1/10-31/12
2 total stops
25h 00m total
Washington to London

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£107 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

PortlandLondon

PDX Portland - STN London Stansted

PDXSTN

Portland

Mon 19/10

15:30-16:50

2 stops17h 20m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£182

PortlandLondon

PDX Portland - LTN London Luton

PDXLTN

Portland

Mon 19/10

15:30-07:35

3 stops32h 05m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£196

PortlandLondon

PDX Portland - LTN London Luton

PDXLTN

Portland

Thu 1/10

15:30-12:40

3 stops37h 10m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£199

PortlandLondon

PDX Portland - STN London Stansted

PDXSTN

Portland

Mon 12/10

15:30-20:00

3 stops44h 30m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£199

PortlandLondon

PDX Portland - STN London Stansted

PDXSTN

Portland

Wed 14/10

15:30-10:45

2 stops35h 15m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£201

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Mon 19/10

15:30-08:20

3 stops32h 50m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£204

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Mon 12/10

15:30-14:40

1 stop15h 10m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£238

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sun 3/1

14:35-10:55

1 stop12h 20m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£239

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Mon 1/3

14:45-10:55

1 stop12h 10m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£239

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Wed 30/12

14:35-10:50

1 stop12h 15m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£239

Flights are sorted by cheapest return flights first.

Deals found on 9/9

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-STN

SEA-LGW

SEA-LTN

PDX-LCY

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-STN

SEA-LGW

SEA-LTN

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 £486). Flying from State of Washington to London in June is currently the most expensive (average of £898). 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 £536 and £757 in October.
The cheapest return price found within the last 5 days was £553 on Scandinavian Airlines (6 Oct–21 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 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?
Delta, Virgin Atlantic, and Scandinavian Airlines can get you from State of Washington to London in just under 15h 40m. Your travel time can differ by up to 5h 41m. The distance from State of Washington to London is about 4807 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 £126. Virgin Atlantic flights start at £197 while deals on British Airways start at £240 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%), SAUDIA (95%), KLM (92%).
What are the cheapest flights from State of Washington to London?
On average you can expect to pay £1,112 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 £429.
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 £486). Flying from State of Washington to London in June is currently the most expensive (average of £898). 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£456	Average£650	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£487	Average£707	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Virgin Atlantic	Cheapest£501	Average£619	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 £178

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. 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 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 10 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 10 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 10 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 10 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 10 September 2026.

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

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

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

Find flight deals from Washington to London

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One-way from

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Cheapest in

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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 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 10 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 £536 and £757 in October.The cheapest return price found within the last 5 days was £553 on Scandinavian Airlines (6 Oct–21 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 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 10 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 10 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 10 September 2026.

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

State of Washington to London flights typically cost between £536 and £757 in October.
The cheapest return price found within the last 5 days was £553 on Scandinavian Airlines (6 Oct–21 Oct).