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

Delta, Scandinavian Airlines, and Virgin Atlantic can get you from State of Washington to London in just under 9h 55m. Your travel time can differ by up to 9h 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 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 £216 while deals on British Airways start at £241 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 £1,115 for a flight from State of Washington to London. The cheapest flight overall is £235 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £430.

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.

£179+ 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 15 September 2026.

Sun 1/1114:35 -

1 stop16h 30m

Fri 6/1106:00 -

1 stop19h 00m

Deal found 13/9£473

Fri 9/1015:40 -

2 stops25h 10m

Sun 18/1005:55 -

2 stops22h 45m

Deal found 13/9£475

Sun 1/1114:35 -

1 stop16h 35m

Fri 6/1111:55 -

1 stop13h 05m

Deal found 13/9£501

Sun 1/1107:45 -

3 stops29h 50m

Fri 6/1118:00 -

2 stops26h 00m

Deal found 13/9£549

Tue 13/1014:10 -

1 stop19h 45m

Tue 20/1013:10 -

2 stops37h 22m

Deal found 13/9£571

Mon 12/1005:50 -

3 stops27h 15m

Sun 18/1022:00 -

2 stops22h 20m

Deal found 12/9£571

Mon 16/1118:45 -

Nonstop9h 25m

Sun 22/1114:55 -

Nonstop9h 55m

Deal found 13/9£571

Tue 13/1007:00 -

2 stops17h 40m

Tue 20/1009:15 -

2 stops21h 41m

Deal found 13/9£572

Mon 16/1117:50 -

1 stop17h 35m

Mon 23/1110:25 -

1 stop13h 30m

Deal found 12/9£572

Sat 17/1015:40 -

1 stop13h 25m

Sat 14/1107:00 -

1 stop18h 00m

Deal found 11/9£572

Mon 5/1014:10 -

1 stop16h 30m

Mon 12/1016:25 -

1 stop32h 34m

Deal found 11/9£572

Tue 22/908:40 -

2 stops17h 45m

Sat 10/1007:25 -

1 stop17h 34m

Deal found 11/9£573

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 15 September 2026.

Wed 28/1017:45 -

Nonstop9h 55m

Sun 8/1106:30 -

1 stop13h 17m

Deal found 12/9£573

Sun 11/1015:55 -

2 stops16h 30m

Wed 14/1006:40 -

2 stops21h 24m

Deal found 10/9£575

Tue 13/1013:45 -

1 stop19h 35m

Tue 20/1009:20 -

2 stops20h 38m

Deal found 13/9£582

Sat 13/222:45 -

2 stops24h 25m

Sat 20/216:40 -

1 stop28h 20m

Deal found 12/9£590

Tue 6/1010:50 -

2 stops18h 35m

Sun 11/1018:55 -

2 stops25h 25m

Deal found 14/9£592

Tue 20/1021:40 -

Nonstop9h 25m

Fri 23/1017:00 -

Nonstop10h 00m

Deal found 14/9£619

Wed 7/1007:00 -

2 stops17h 25m

Wed 14/1009:25 -

2 stops17h 07m

Deal found 10/9£641

Sat 21/1119:05 -

1 stop30h 50m

Wed 25/1110:55 -

1 stop38h 15m

Deal found 9/9£682

Sun 10/115:00 -

1 stop16h 00m

Thu 14/110:25 -

1 stop13h 30m

Deal found 11/9£716

Sun 31/107:30 -

1 stop15h 20m

Fri 19/213:35 -

Nonstop10h 15m

Deal found 9/9£752

Sat 10/1015:30 -

1 stop15h 05m

Mon 2/1111:55 -

1 stop13h 05m

Deal found 11/9£771

Tue 6/1013:05 -

1 stop11h 45m

Fri 16/1008:25 -

2 stops19h 37m

Deal found 13/9£891

Wed 21/1021:50 -

Nonstop9h 45m

Sat 31/1008:55 -

1 stop12h 55m

Deal found 12/9£574

Mon 1/206:05 -

2 stops18h 05m

Sun 14/220:05 -

1 stop23h 42m

Deal found 12/9£622

Sun 13/1214:35 -

1 stop16h 30m

Wed 30/1208:00 -

1 stop17h 00m

Deal found 12/9£632

Wed 28/1016:20 -

1 stop16h 25m

Sun 8/1110:00 -

1 stop13h 14m

Deal found 14/9£587

Mon 5/1007:00 -

2 stops21h 35m

Fri 16/1009:15 -

2 stops21h 41m

Deal found 13/9£664

Fri 16/1019:15 -

1 stop37h 25m

Tue 20/1017:35 -

1 stop31h 45m

Deal found 10/9£682

Thu 19/1112:31 -

2 stops43h 29m

Sun 22/1106:40 -

2 stops25h 17m

Deal found 9/9£696

Thu 5/1111:25 -

2 stops23h 00m

Wed 11/1107:45 -

2 stops22h 12m

Deal found 12/9£637

Thu 1/1010:50 -

2 stops21h 55m

Sun 4/1018:55 -

2 stops25h 25m

Deal found 12/9£637

Thu 29/1017:45 -

Nonstop9h 55m

Sat 7/1106:30 -

1 stop13h 17m

Deal found 12/9£610

Sun 27/907:02 -

2 stops17h 23m

Tue 13/1018:35 -

2 stops32h 36m

Deal found 12/9£674

Thu 12/1119:05 -

1 stop19h 30m

Mon 16/1110:05 -

1 stop39h 05m

Deal found 9/9£688

Wed 16/1214:35 -

1 stop14h 25m

Wed 23/1208:00 -

1 stop17h 00m

Deal found 14/9£650

Sat 10/1013:12 -

1 stop34h 53m

Sun 8/1113:35 -

Nonstop10h 15m

Deal found 11/9£793

Tue 10/1108:30 -

2 stops16h 20m

Tue 17/1118:55 -

1 stop24h 52m

Deal found 10/9£656

Thu 15/1017:45 -

1 stop15h 50m

Sun 18/1018:30 -

Nonstop10h 25m

Deal found 13/9£619

Mon 1/219:05 -

1 stop30h 50m

Sun 14/217:20 -

1 stop31h 50m

Deal found 12/9£696

Thu 21/110:00 -

3 stops23h 40m

Mon 25/106:40 -

2 stops22h 47m

Deal found 11/9£782

Find flight deals from Washington to London

Round-trip from	£432
One-way from	£179
Popular in	June
Cheapest in	January
Average price	£686
Good round-trip deal	£653 or less
Good one-way deal	£300 or less

Icelandair
11/2-20/2
2 total stops
40h 40m total
Washington to London

Search Deals

19/10-31/12
2 total stops
17h 20m 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

£179

PortlandLondon

PDX Portland - STN London Stansted

PDXSTN

Portland

Mon 12/10

15:30-08:35

3 stops33h 05m

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 26/10

15:45-07:50

3 stops33h 05m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£226

PortlandLondon

PDX Portland - LGW London Gatwick

PDXLGW

Portland

Tue 1/12

14:45-10:55

1 stop12h 10m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£227

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

£229

SeattleLondon

SEA Seattle/Tacoma Intl - LHR London Heathrow

SEALHR

Seattle/Tacoma Intl

Mon 28/12

23:44-06:40

2 stops22h 56m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£244

SeattleLondon

SEA Seattle/Tacoma Intl - LGW London Gatwick

SEALGW

Seattle/Tacoma Intl

Sun 28/2

07:15-15:45

2 stops24h 30m

London Gatwick

Wed 31/12

00:00-15:00

Nonstop0h 00m

£247

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Sun 7/3

10:00-11:50

1 stop17h 50m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£248

PortlandLondon

PDX Portland - LHR London Heathrow

PDXLHR

Portland

Mon 1/3

17:45-11:20

Nonstop9h 35m

London Heathrow

Wed 31/12

00:00-15:00

Nonstop0h 00m

£248

Flights are sorted by cheapest return flights first.

Deals found on 11/9

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.

PDX-STN

PDX-LTN

PDX-LGW

PDX-LHR

SEA-STN

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

PDX-STN

PDX-LTN

PDX-LGW

PDX-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 £493). Flying from State of Washington to London in June is currently the most expensive (average of £902). 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 below average for this route at the moment.

State of Washington to London flights typically cost between £555 and £774 in February.
The cheapest return price found within the last 5 days was £432 on Icelandair (11 Feb–20 Feb).

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, Scandinavian Airlines, and Virgin Atlantic can get you from State of Washington to London in just under 9h 55m. Your travel time can differ by up to 9h 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 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 £216 while deals on British Airways start at £241 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 £1,115 for a flight from State of Washington to London. The cheapest flight overall is £235 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at £430.
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 £493). Flying from State of Washington to London in June is currently the most expensive (average of £902). 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£458	Average£677	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£488	Average£723	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights
Virgin Atlantic	Cheapest£520	Average£631	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 £179

This is the cheapest retur 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 15 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 15 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 15 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 15 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 15 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 15 September 2026.

Last-minute flights from Washington to LondonDiscover last-minute flight deals from Washington to London. Data last updated 15 September 2026 and is based on user searches.

Discover last-minute flight deals from Washington to London. Data last updated 15 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 15 September 2026.

Search for one-way flight options from Washington to London. Find affordable one-way fares based on user searches. Data last updated 15 September 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 15 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 15 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 below average for this route at the moment.

State of Washington to London flights typically cost between £555 and £774 in February.The cheapest return price found within the last 5 days was £432 on Icelandair (11 Feb–20 Feb).

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 15 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 15 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 15 September 2026.

Last-minute flights from Washington to London
Discover last-minute flight deals from Washington to London. Data last updated 15 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 15 September 2026.

State of Washington to London flights typically cost between £555 and £774 in February.
The cheapest return price found within the last 5 days was £432 on Icelandair (11 Feb–20 Feb).