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

Virgin Atlantic, Alaska Airlines, and Delta can get you from State of Washington to London in just under 9h 35m. Your travel time can differ by up to 7h 40m. 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.

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 £236 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £422.

What are the most reliable airlines from State of Washington to London?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from State of Washington to London on time: Scandinavian Airlines (95%), KLM (94%), SAUDIA (94%).

Can I find deals for flights from Washington to London that include hotel bookings?

Yes. In addition to deals on Washington to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Washington to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to London.

Can I find deals for business class flights from Washington to London?

Yes. Cheapflights offers flight deals from Washington to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£189+ 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 20 September 2026.

Thu 1/1010:50 -

2 stops19h 45m

Sun 4/1006:35 -

2 stops15h 47m

Deal found 17/9£577

Fri 25/917:30 -

Nonstop9h 50m

Wed 7/1009:55 -

1 stop14h 40m

Deal found 17/9£577

Wed 11/1108:30 -

2 stops16h 20m

Mon 16/1117:50 -

1 stop25h 57m

Deal found 18/9£578

Fri 30/1015:35 -

1 stop12h 20m

Mon 9/1111:55 -

1 stop13h 05m

Deal found 17/9£578

Sat 10/1019:15 -

1 stop34h 05m

Sat 17/1019:10 -

1 stop29h 49m

Deal found 16/9£578

Wed 28/1019:00 -

1 stop12h 40m

Mon 9/1111:55 -

1 stop13h 05m

Deal found 16/9£578

Thu 19/1108:40 -

2 stops18h 40m

Thu 26/1106:35 -

2 stops19h 47m

Deal found 18/9£578

Sun 8/1114:35 -

1 stop18h 45m

Tue 17/1118:55 -

1 stop24h 52m

Deal found 14/9£579

Wed 14/1019:00 -

2 stops18h 40m

Sat 14/1107:55 -

2 stops17h 05m

Deal found 14/9£579

Thu 12/1117:50 -

1 stop13h 10m

Mon 16/1110:25 -

1 stop13h 30m

Deal found 18/9£579

Fri 25/921:50 -

Nonstop9h 45m

Fri 2/1011:40 -

Nonstop10h 20m

Deal found 19/9£579

Tue 29/913:19 -

2 stops20h 06m

Tue 6/1019:15 -

2 stops31h 17m

Deal found 16/9£580

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 20 September 2026.

Sun 8/1106:00 -

2 stops17h 15m

Tue 17/1117:50 -

1 stop25h 57m

Deal found 14/9£582

Sat 7/1118:45 -

Nonstop9h 35m

Tue 17/1114:45 -

Nonstop10h 15m

Deal found 15/9£583

Fri 8/111:25 -

1 stop14h 35m

Fri 12/208:55 -

1 stop14h 08m

Deal found 18/9£589

Wed 30/1208:31 -

1 stop18h 44m

Fri 8/114:30 -

1 stop14h 16m

Deal found 17/9£600

Wed 10/217:45 -

Nonstop9h 35m

Mon 15/213:35 -

Nonstop10h 15m

Deal found 15/9£605

Fri 12/214:45 -

1 stop15h 10m

Thu 18/206:00 -

1 stop19h 00m

Deal found 15/9£620

Fri 13/1116:50 -

Nonstop9h 50m

Mon 16/1112:20 -

Nonstop10h 30m

Deal found 14/9£620

Thu 18/212:00 -

2 stops21h 40m

Sun 28/206:40 -

2 stops23h 22m

Deal found 17/9£631

Wed 3/219:05 -

1 stop37h 15m

Wed 3/310:55 -

1 stop38h 15m

Deal found 18/9£656

Wed 14/1007:00 -

2 stops17h 40m

Wed 21/1009:15 -

2 stops17h 17m

Deal found 16/9£657

Sun 10/117:45 -

Nonstop9h 35m

Wed 20/113:50 -

1 stop16h 25m

Deal found 19/9£779

Thu 31/1211:32 -

2 stops15h 23m

Sun 17/111:55 -

1 stop13h 05m

Deal found 14/9£792

Fri 13/1118:45 -

Nonstop9h 35m

Thu 19/1114:45 -

Nonstop10h 15m

Deal found 14/9£583

Mon 11/114:25 -

1 stop18h 55m

Fri 12/208:40 -

2 stops19h 47m

Deal found 18/9£589

Wed 28/1016:20 -

1 stop16h 25m

Sun 8/1110:00 -

1 stop13h 14m

Deal found 18/9£591

Fri 9/1007:00 -

1 stop20h 10m

Fri 16/1015:05 -

1 stop26h 26m

Deal found 18/9£601

Mon 12/1023:55 -

2 stops29h 30m

Mon 19/1008:15 -

1 stop16h 55m

Deal found 14/9£628

Tue 20/1010:39 -

2 stops23h 01m

Fri 23/1006:40 -

2 stops24h 09m

Deal found 15/9£631

Mon 1/219:05 -

1 stop30h 50m

Tue 9/217:20 -

1 stop31h 50m

Deal found 17/9£657

Mon 1/313:20 -

1 stop21h 05m

Wed 31/320:15 -

1 stop22h 55m

Deal found 16/9£598

Sat 16/119:05 -

1 stop32h 45m

Mon 25/113:00 -

3 stops39h 10m

Deal found 14/9£601

Sat 17/1007:02 -

2 stops22h 43m

Wed 4/1119:05 -

2 stops33h 57m

Deal found 17/9£664

Sun 8/1108:08 -

1 stop20h 12m

Sat 14/1114:45 -

1 stop16h 15m

Deal found 19/9£608

Thu 29/1017:45 -

Nonstop9h 55m

Sat 7/1106:30 -

1 stop13h 17m

Deal found 17/9£614

Thu 15/1010:10 -

3 stops30h 40m

Thu 22/1017:30 -

3 stops33h 41m

Deal found 17/9£641

Wed 4/1113:40 -

1 stop20h 45m

Mon 16/1118:55 -

2 stops30h 16m

Deal found 19/9£599

Wed 14/1007:02 -

2 stops17h 38m

Fri 23/1009:15 -

2 stops19h 45m

Deal found 16/9£665

Sat 17/1017:48 -

1 stop13h 17m

Tue 20/1017:00 -

1 stop12h 56m

Deal found 17/9£608

Wed 7/1019:15 -

1 stop37h 25m

Tue 20/1017:35 -

1 stop31h 45m

Deal found 16/9£672

Tue 29/1206:15 -

2 stops18h 45m

Fri 8/110:00 -

2 stops19h 27m

Deal found 17/9£617

Find flight deals from Washington to London

Round-trip from	£577
One-way from	£189
Popular in	June
Cheapest in	January
Average price	£688
Good round-trip deal	£658 or less
Good one-way deal	£280 or less

Virgin Atlantic
8/11-24/11
2 total stops
41h 42m total
Washington to London

Search Deals

19/10-31/12
2 total stops
35h 35m total
Washington to London

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£104 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in 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

Sat 31/10

15:45-10:50

2 stops36h 05m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£189

PortlandLondon

PDX Portland - LTN London Luton

PDXLTN

Portland

Sat 31/10

15:45-08:15

3 stops33h 30m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£220

PortlandLondon

PDX Portland - LTN London Luton

PDXLTN

Portland

Thu 1/10

15:30-17:25

3 stops41h 55m

London Luton

Wed 31/12

00:00-15:00

Nonstop0h 00m

£228

PortlandLondon

PDX Portland - STN London Stansted

PDXSTN

Portland

Sat 10/10

15:30-07:25

3 stops31h 55m

London Stansted

Wed 31/12

00:00-15:00

Nonstop0h 00m

£228

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Thu 1/10

15:30-14:55

2 stops39h 25m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£234

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Sun 14/3

10:00-11:50

1 stop18h 50m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£250

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Sun 14/3

18:45-11:20

Nonstop9h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£250

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Wed 17/3

10:00-11:50

1 stop18h 50m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£250

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Tue 5/1

19:49-21:20

2 stops17h 31m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Tue 12/1

19:49-20:35

2 stops16h 46m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£253

Flights are sorted by cheapest return flights first.

Deals found on 15/9

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-STN

SEA-LHR

SEA-LCY

SEA-LGW

PDX-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-STN

SEA-LHR

SEA-LCY

SEA-LGW

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 £505). Flying from State of Washington to London in June is currently the most expensive (average of £907). 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 £540 and £743 in November.
The cheapest return price found within the last 5 days was £577 on Virgin Atlantic (8 Nov–24 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?
Virgin Atlantic, Alaska Airlines, and Delta can get you from State of Washington to London in just under 9h 35m. Your travel time can differ by up to 7h 40m. 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 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 £1,112 for a flight from State of Washington to London. The cheapest flight overall is £236 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £422.
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 £505). Flying from State of Washington to London in June is currently the most expensive (average of £907). 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£461	Average£683	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£492	Average£729	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Virgin Atlantic	Cheapest£524	Average£636	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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When you search for this flight from Washington to London, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Washington today and book when prices fit your budget.

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Cheap flights from Washington to London from £189

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/10. 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 20 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 20 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 20 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 20 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 20 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 20 September 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 20 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 20 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 20 September 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Find flight deals from Washington to London

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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 20 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 20 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 £540 and £743 in November.The cheapest return price found within the last 5 days was £577 on Virgin Atlantic (8 Nov–24 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 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 20 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 20 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 20 September 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 20 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 20 September 2026.

State of Washington to London flights typically cost between £540 and £743 in November.
The cheapest return price found within the last 5 days was £577 on Virgin Atlantic (8 Nov–24 Nov).