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

Icelandair, Scandinavian Airlines, and Virgin Atlantic can get you from State of Washington to London in just under 11h 35m. Your travel time can differ by up to 9h 58m. 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 £125. Virgin Atlantic flights start at £214 while deals on British Airways start at £239 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 £517 for a flight from State of Washington to London. The cheapest flight overall is £238 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £406.

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: SAUDIA (97%), Scandinavian Airlines (90%), KLM (88%).

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.

£174+ 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 August 2026.

Wed 4/1107:45 -

3 stops27h 45m

Sun 15/1109:15 -

3 stops34h 45m

Deal found 21/8£479

Tue 6/1008:00 -

3 stops27h 55m

Wed 14/1018:05 -

2 stops30h 54m

Deal found 23/8£479

Sat 3/1015:55 -

1 stop31h 45m

Sat 10/1016:15 -

2 stops26h 20m

Deal found 21/8£480

Wed 4/1114:50 -

2 stops22h 55m

Wed 11/1107:00 -

2 stops21h 59m

Deal found 22/8£480

Sun 27/915:55 -

1 stop15h 45m

Fri 9/1006:20 -

1 stop15h 25m

Deal found 21/8£480

Sun 27/915:40 -

3 stops33h 30m

Tue 6/1011:00 -

2 stops17h 40m

Deal found 20/8£480

Fri 2/1015:55 -

1 stop13h 40m

Fri 9/1006:40 -

2 stops15h 05m

Deal found 21/8£481

Fri 2/1010:55 -

2 stops21h 05m

Sun 4/1006:40 -

2 stops15h 05m

Deal found 21/8£482

Fri 25/915:55 -

1 stop15h 30m

Sun 4/1007:05 -

1 stop14h 40m

Deal found 20/8£482

Sat 3/1015:55 -

1 stop17h 45m

Sat 10/1006:40 -

2 stops39h 05m

Deal found 21/8£482

Sun 27/915:55 -

2 stops34h 25m

Fri 9/1007:05 -

1 stop14h 40m

Deal found 21/8£483

Thu 24/912:35 -

2 stops43h 25m

Sun 27/906:40 -

2 stops15h 05m

Deal found 22/8£485

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 August 2026.

Mon 21/915:40 -

2 stops23h 10m

Tue 29/909:40 -

2 stops19h 00m

Deal found 20/8£525

Sun 4/1015:55 -

2 stops20h 00m

Tue 13/1007:05 -

2 stops23h 59m

Deal found 25/8£551

Sat 17/1019:00 -

1 stop11h 35m

Fri 30/1011:55 -

1 stop13h 05m

Deal found 20/8£580

Sun 17/116:55 -

Nonstop9h 45m

Thu 4/206:30 -

1 stop13h 17m

Deal found 22/8£633

Mon 30/1110:12 -

2 stops21h 33m

Wed 9/1210:00 -

1 stop13h 13m

Deal found 22/8£638

Wed 11/1119:05 -

1 stop30h 50m

Wed 18/1110:55 -

1 stop38h 15m

Deal found 25/8£647

Tue 22/915:54 -

1 stop12h 31m

Tue 29/909:00 -

1 stop15h 59m

Deal found 23/8£666

Wed 13/113:39 -

2 stops19h 26m

Wed 27/109:15 -

2 stops21h 57m

Deal found 21/8£680

Sun 20/913:50 -

1 stop11h 40m

Wed 30/909:20 -

1 stop15h 15m

Deal found 23/8£684

Sun 4/1017:40 -

1 stop13h 00m

Sun 11/1015:35 -

1 stop32h 35m

Deal found 23/8£698

Sun 13/915:00 -

1 stop16h 05m

Wed 16/917:00 -

1 stop13h 58m

Deal found 21/8£839

Tue 13/1019:00 -

2 stops16h 15m

Tue 20/1006:00 -

2 stops22h 40m

Deal found 21/8£567

Sun 13/915:55 -

2 stops20h 00m

Sat 19/906:40 -

1 stop15h 05m

Deal found 22/8£586

Mon 23/1119:05 -

1 stop19h 30m

Tue 1/1206:30 -

1 stop18h 40m

Deal found 20/8£651

Fri 9/1018:00 -

2 stops19h 05m

Mon 19/1021:50 -

2 stops25h 50m

Deal found 23/8£592

Tue 15/919:00 -

1 stop11h 40m

Tue 22/915:40 -

1 stop13h 00m

Deal found 23/8£661

Fri 9/1015:55 -

2 stops18h 35m

Fri 16/1006:40 -

2 stops24h 33m

Deal found 25/8£613

Tue 2/210:15 -

2 stops22h 20m

Tue 23/218:55 -

1 stop24h 25m

Deal found 20/8£676

Mon 16/1119:35 -

2 stops26h 55m

Tue 24/1111:10 -

1 stop33h 50m

Deal found 25/8£677

Tue 12/113:39 -

2 stops19h 26m

Tue 26/109:15 -

2 stops19h 18m

Deal found 21/8£680

Tue 20/1015:31 -

1 stop16h 04m

Wed 4/1106:30 -

1 stop13h 10m

Deal found 25/8£704

Wed 11/1119:05 -

1 stop19h 30m

Wed 18/1110:05 -

1 stop39h 05m

Deal found 25/8£653

Sun 1/1110:39 -

2 stops21h 21m

Sun 13/1218:40 -

2 stops33h 24m

Deal found 21/8£620

Wed 7/1013:45 -

1 stop22h 00m

Wed 14/1008:25 -

2 stops18h 40m

Deal found 23/8£691

Sat 5/923:59 -

1 stop23h 46m

Tue 8/907:25 -

1 stop17h 34m

Deal found 22/8£696

Tue 6/1019:00 -

2 stops16h 15m

Tue 13/1009:40 -

2 stops16h 15m

Deal found 21/8£636

Tue 15/918:05 -

1 stop16h 45m

Thu 17/910:20 -

1 stop13h 40m

Deal found 24/8£791

Mon 28/915:23 -

2 stops18h 07m

Wed 14/1009:15 -

2 stops17h 56m

Deal found 25/8£725

Sat 5/1211:31 -

2 stops20h 14m

Sun 20/1210:00 -

2 stops16h 43m

Deal found 22/8£733

Thu 12/1119:05 -

1 stop30h 50m

Mon 16/1110:55 -

1 stop38h 15m

Deal found 20/8£675

Find flight deals from Washington to London

Round-trip from	£479
One-way from	£174
Popular in	June
Cheapest in	January
Average price	£649
Good round-trip deal	£663 or less
Good one-way deal	£264 or less

4/11-15/11
6 total stops
62h 30m total
Washington to London

Search Deals

19/10
2 total stops
17h 20m total
Washington to London

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£110 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 August 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

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Mon 21/9

15:40-22:50

2 stops23h 10m

London Luton

Tue 29/9

09:40-20:40

2 stops19h 00m

£525

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 4/10

15:55-19:55

2 stops20h 00m

London Heathrow

Tue 13/10

07:05-23:04

2 stops23h 59m

£551

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Tue 13/10

19:00-19:15

2 stops16h 15m

London Luton

Tue 20/10

06:00-20:40

2 stops22h 40m

£567

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sat 17/10

19:00-14:35

1 stop11h 35m

London Gatwick

Fri 30/10

11:55-18:00

1 stop13h 05m

£580

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 13/9

15:55-19:55

2 stops20h 00m

London Heathrow

Sat 19/9

06:40-13:45

1 stop15h 05m

£586

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Fri 9/10

18:00-21:05

2 stops19h 05m

London Luton

Mon 19/10

21:50-15:40

2 stops25h 50m

£592

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Fri 9/10

15:55-18:30

2 stops18h 35m

London Heathrow

Fri 16/10

06:40-23:13

2 stops24h 33m

£613

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 1/11

10:39-16:00

2 stops21h 21m

London Heathrow

Sun 13/12

18:40-20:04

2 stops33h 24m

£620

Fastest return journey

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Sun 17/1

16:55-10:40

Nonstop9h 45m

London Heathrow

Thu 4/2

06:30-11:47

1 stop13h 17m

£633

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Tue 6/10

19:00-19:15

2 stops16h 15m

London Luton

Tue 13/10

09:40-17:55

2 stops16h 15m

£636

Flights are sorted by cheapest return flights first.

Deals found on 24/8

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-LTN

SEA-LHR

SEA-LGW

SEA-STN

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-LTN

SEA-LHR

SEA-LGW

SEA-STN

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 £483). Flying from State of Washington to London in June is currently the most expensive (average of £891). 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 Monday (24 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (19 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 £518 and £739 in November.
The cheapest return price found within the last 5 days was £479 on Multiple Airlines (4 Nov–15 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 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?
Icelandair, Scandinavian Airlines, and Virgin Atlantic can get you from State of Washington to London in just under 11h 35m. Your travel time can differ by up to 9h 58m. 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 £125. Virgin Atlantic flights start at £214 while deals on British Airways start at £239 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: SAUDIA (97%), Scandinavian Airlines (90%), KLM (88%).
What are the cheapest flights from State of Washington to London?
On average you can expect to pay £517 for a flight from State of Washington to London. The cheapest flight overall is £238 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £406.
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 £483). Flying from State of Washington to London in June is currently the most expensive (average of £891). 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£453	Average£671	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£483	Average£720	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Virgin Atlantic	Cheapest£491	Average£603	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 £174

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. 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 25 August 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 August 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 August 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 August 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 August 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 August 2026.

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

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

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

The most flights from USWA to LON are scheduled on a Monday (24 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (19 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 £518 and £739 in November.The cheapest return price found within the last 5 days was £479 on Multiple Airlines (4 Nov–15 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 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 August 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 August 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 August 2026.

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

State of Washington to London flights typically cost between £518 and £739 in November.
The cheapest return price found within the last 5 days was £479 on Multiple Airlines (4 Nov–15 Nov).