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

United Airlines, Alaska Airlines, and Virgin Atlantic can get you from London Heathrow Airport to State of Washington in just under 13h 20m. Your travel time can differ by up to 23h 54m. The distance from London Heathrow Airport to State of Washington is about 4783 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from London Heathrow Airport to State of Washington one-way?

One-way options have recently been found by users for as low as £333 on British Airways. Other airlines that offer cheap prices include Icelandair from £337 and Virgin Atlantic from £364 one-way.

In terms of precipitation, rainfall in State of Washington ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit State of Washington when rainfall is around 18.0 mm.

If weather is an important factor for your trip to State of Washington, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What are the most popular routes from London Heathrow Airport to State of Washington?

When deciding which route to take from London Heathrow Airport to State of Washington consider London Heathrow - Seattle/Tacoma Intl, London Heathrow - Portland or London Heathrow - Spokane as they are the most popular.

What are the cheapest flights from London Heathrow Airport to State of Washington?

Looking for the cheapest flight from London Heathrow Airport to State of Washington? While on average our users pay £1,820, our data indicates the cheapest price to be £314. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around £319.

What are the most popular airlines that fly from London Heathrow Airport to State of Washington?

When booking a flight from London Heathrow Airport to State of Washington, you may want to consider flying on Virgin Atlantic, British Airways or Alaska Airlines as they are the most popular for this route.

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

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

How can I find direct flights from Heathrow to Washington?

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

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

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

£378+ Cheap Flights from London Heathrow Airport to Washington

Cheap flight deals from Heathrow to Washington

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Washington
Explore the most affordable flight options available from Heathrow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Sat 26/914:05 -

2 stops16h 42m

Thu 22/1010:50 -

1 stop18h 30m

Deal found 12/9£432

Tue 29/915:05 -

1 stop15h 42m

Wed 7/1005:50 -

2 stops16h 40m

Deal found 11/9£433

Mon 21/910:00 -

2 stops36h 24m

Tue 29/908:30 -

1 stop19h 55m

Deal found 11/9£434

Tue 15/1214:45 -

Nonstop10h 05m

Sun 20/1218:55 -

Nonstop9h 25m

Deal found 11/9£437

Wed 28/1014:45 -

Nonstop10h 20m

Thu 19/1118:55 -

Nonstop9h 25m

Deal found 12/9£438

Sat 12/1213:00 -

2 stops33h 37m

Sat 30/108:40 -

2 stops18h 40m

Deal found 12/9£439

Sat 19/910:55 -

1 stop15h 59m

Fri 2/1021:50 -

Nonstop9h 45m

Deal found 10/9£439

Tue 29/909:30 -

2 stops17h 22m

Wed 7/1005:50 -

2 stops16h 40m

Deal found 10/9£440

Sat 19/911:45 -

1 stop19h 35m

Mon 5/1014:30 -

2 stops22h 55m

Deal found 11/9£441

Sat 12/1215:40 -

2 stops38h 19m

Sat 9/105:00 -

1 stop23h 15m

Deal found 11/9£442

Sun 6/1214:45 -

Nonstop10h 05m

Tue 5/118:50 -

Nonstop9h 30m

Deal found 11/9£442

Mon 26/1014:45 -

1 stop16h 08m

Mon 2/1113:58 -

1 stop14h 22m

Deal found 11/9£505

Best flights from Heathrow to Washington
Discover carefully curated flight deals from Heathrow to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Wed 23/1211:05 -

2 stops37h 14m

Fri 1/105:00 -

2 stops18h 55m

Deal found 10/9£483

Tue 22/1206:20 -

1 stop15h 30m

Wed 6/106:00 -

2 stops20h 30m

Deal found 8/9£491

Thu 21/114:45 -

1 stop17h 05m

Mon 25/105:02 -

1 stop23h 18m

Deal found 10/9£514

Wed 18/1106:40 -

2 stops23h 20m

Wed 9/1211:01 -

2 stops26h 39m

Deal found 11/9£612

Mon 2/1113:35 -

Nonstop10h 15m

Mon 16/1113:22 -

1 stop14h 13m

Deal found 9/9£677

Fri 18/1207:40 -

1 stop19h 26m

Thu 7/107:00 -

2 stops15h 40m

Deal found 7/9£495

Tue 2/214:45 -

1 stop17h 05m

Tue 16/212:56 -

1 stop15h 24m

Deal found 12/9£522

Fri 23/1017:00 -

1 stop28h 37m

Fri 30/1014:17 -

1 stop15h 03m

Deal found 8/9£525

Wed 18/1106:40 -

2 stops23h 20m

Sun 13/1211:01 -

3 stops20h 59m

Deal found 11/9£612

Sat 19/1216:40 -

1 stop28h 20m

Sat 2/119:10 -

2 stops26h 45m

Deal found 10/9£604

Wed 18/1111:00 -

1 stop16h 47m

Wed 9/1217:45 -

Nonstop9h 35m

Deal found 12/9£681

Wed 27/110:20 -

2 stops18h 36m

Sun 31/107:00 -

2 stops25h 00m

Deal found 11/9£622

Tue 22/1213:35 -

1 stop16h 57m

Sat 2/119:10 -

1 stop30h 30m

Deal found 9/9£620

Sun 20/1214:45 -

Nonstop10h 05m

Mon 4/118:55 -

Nonstop9h 25m

Deal found 12/9£667

Tue 29/907:05 -

2 stops24h 15m

Fri 2/1015:55 -

2 stops18h 35m

Deal found 8/9£714

Fri 5/307:30 -

2 stops18h 08m

Sat 20/310:00 -

1 stop18h 50m

Deal found 8/9£665

Thu 21/114:45 -

1 stop31h 47m

Mon 25/106:08 -

1 stop22h 12m

Deal found 9/9£673

Wed 18/1114:30 -

1 stop32h 11m

Wed 9/1219:10 -

1 stop32h 40m

Deal found 11/9£678

Wed 21/1017:00 -

1 stop14h 02m

Sun 1/1106:08 -

1 stop22h 12m

Deal found 7/9£678

Wed 27/114:30 -

1 stop32h 11m

Sun 31/110:47 -

1 stop17h 13m

Deal found 7/9£684

Mon 14/1214:45 -

1 stop14h 26m

Sun 27/1206:00 -

1 stop22h 20m

Deal found 7/9£741

Thu 21/110:25 -

2 stops33h 50m

Mon 25/112:45 -

1 stop12h 55m

Deal found 11/9£723

Tue 15/1214:45 -

1 stop14h 26m

Sun 27/1206:00 -

1 stop22h 20m

Deal found 9/9£742

Sun 4/1007:25 -

1 stop17h 34m

Thu 8/1007:11 -

1 stop19h 59m

Deal found 9/9£738

Fri 11/1214:45 -

1 stop14h 26m

Tue 29/1216:37 -

1 stop11h 43m

Deal found 10/9£743

Sun 4/1006:50 -

2 stops20h 02m

Fri 9/1009:05 -

2 stops17h 05m

Deal found 9/9£744

Thu 1/1017:00 -

1 stop28h 26m

Mon 5/1019:18 -

1 stop11h 47m

Deal found 12/9£758

Fri 11/1215:20 -

2 stops28h 04m

Sun 27/1223:42 -

2 stops22h 58m

Deal found 7/9£776

Sun 13/1214:45 -

1 stop17h 33m

Sun 27/1206:00 -

1 stop22h 20m

Deal found 11/9£790

Sun 27/906:40 -

2 stops15h 05m

Sun 27/915:55 -

1 stop21h 45m

Deal found 11/9£1,456

Find flight deals from Heathrow to Washington

Round-trip from	£433
One-way from	£378
Popular in	August
Cheapest in	February
Average price	£544
Good round-trip deal	£475 or less
Good one-way deal	£558 or less

Air Canada
29/9-7/10
3 total stops
32h 22m total
London to Washington

Search Deals

3/11-31/12
2 total stops
19h 59m total
London to Washington

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£27 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£6 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 London Heathrow to Washington.

Search Deals

Price to beat on a one-way flight from London Heathrow to Washington.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Fri 25/12

06:30-10:40

2 stops36h 10m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£380

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Sun 27/12

06:30-20:50

2 stops22h 20m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£380

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Tue 15/12

12:20-14:50

Nonstop10h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£388

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Thu 10/12

12:20-14:50

Nonstop10h 30m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£388

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Tue 9/3

07:30-23:21

3 stops23h 51m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£388

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Wed 4/11

20:50-15:12

3 stops50h 22m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£391

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Tue 3/11

14:30-21:57

1 stop15h 27m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£400

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Wed 18/11

16:20-19:17

3 stops34h 57m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£404

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Tue 8/12

08:00-23:44

3 stops23h 44m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£404

LondonSeattle

LHR London Heathrow - SEA Seattle/Tacoma Intl

LHRSEA

London Heathrow

Sat 10/10

08:15-20:34

1 stop20h 19m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£419

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 Heathrow to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Heathrow with our price prediction graph.

LHR-SEA

LHR-BLI

LHR-PDX

LHR-PSC

LHR-GEG

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 London Heathrow Airport to Washington

LHR-USWA

LHR-SEA

LHR-BLI

LHR-PDX

LHR-PSC

What is the cheapest month to book a flight from London Heathrow Airport to State of Washington?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of £509). Flying from London Heathrow Airport to State of Washington in December is currently the most expensive (average of £676). 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 LHR to WA?

When flying from London Heathrow Airport to State of Washington, 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 London Heathrow Airport to State of Washington

The most flights from LHR to USWA are scheduled on a Tuesday (24 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost for a return flight from London Heathrow Airport to State of Washington?

Airfare is below average for this route at the moment.

London Heathrow Airport to State of Washington flights typically cost between £493 and £647 in September.
The cheapest return price found within the last 5 days was £433 on Air Canada (29 Sept–7 Oct).

How far ahead should I book a flight from London Heathrow Airport to State of Washington?

The price you pay for your flight from London Heathrow Airport to State of Washington may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Washington

Get a feel of what it's like to fly with Alaska Airlines,KLM, andVirgin Atlantic from London Heathrow Airport to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

7.9

Good

12,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

Alaska Airlines

7.9

Good

12,917 reviews

Alaska Airlines

7.9

Good

12,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

KLM

7.8

Good

1,576 reviews

Alaska Airlines

7.9

Good

12,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

Virgin Atlantic

7.4

Good

694 reviews

Alaska Airlines

7.9

Good

12,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

Icelandair

6.9

Okay

741 reviews

Alaska Airlines

7.9

Good

12,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

British Airways

6.7

Okay

8,213 reviews

Alaska Airlines

7.9

Good

12,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

Related info for your journey

How long is the flight from London Heathrow Airport to State of Washington?
United Airlines, Alaska Airlines, and Virgin Atlantic can get you from London Heathrow Airport to State of Washington in just under 13h 20m. Your travel time can differ by up to 23h 54m. The distance from London Heathrow Airport to State of Washington is about 4783 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from London Heathrow Airport to State of Washington one-way?
One-way options have recently been found by users for as low as £333 on British Airways. Other airlines that offer cheap prices include Icelandair from £337 and Virgin Atlantic from £364 one-way.
What are the most popular routes from London Heathrow Airport to State of Washington?
When deciding which route to take from London Heathrow Airport to State of Washington consider London Heathrow - Seattle/Tacoma Intl, London Heathrow - Portland or London Heathrow - Spokane as they are the most popular.
What are the most reliable airlines from London Heathrow Airport to State of Washington?
The top 3 most reliable airlines when flying from London Heathrow Airport to State of Washington are SAUDIA (79%), Scandinavian Airlines (78%) and KLM (75%).
What are the cheapest flights from London Heathrow Airport to State of Washington?
Looking for the cheapest flight from London Heathrow Airport to State of Washington? While on average our users pay £1,820, our data indicates the cheapest price to be £314. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around £319.
Can I find deals for flights from Heathrow to Washington that include hotel bookings?
Yes. In addition to deals on Heathrow to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Washington?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Washington.
Can I find deals for business class flights from Heathrow to Washington?
Yes. Cheapflights offers flight deals from Heathrow to Washington 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 London Heathrow Airport to State of Washington?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of £509). Flying from London Heathrow Airport to State of Washington in December is currently the most expensive (average of £676). 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.

See more FAQs

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Luton to Boston flights

Top 10 airlines flying from Heathrow to Washington

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£332	Average£511	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£333	Average£481	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
United Airlines	Cheapest£367	Average£486	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£388	Average£634	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Delta	Cheapest£395	Average£645	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Virgin Atlantic	Cheapest£414	Average£798	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air France	Cheapest£426	Average£608	FlexibilityNo cancel fee	On-time77%	Search Air France flights
KLM	Cheapest£429	Average£609	FlexibilityNo cancel fee	On-time75%	Search KLM flights
British Airways	Cheapest£447	Average£627	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Alaska Airlines	Cheapest£451	Average£562	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Washington?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Washington from Heathrow today with Cheapflights!

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Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Washington 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 Heathrow to Washington with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Washington flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Washington become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Washington on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from London Heathrow Airport to Washington from £378

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Washington

Cheapest flights from Heathrow to WashingtonExplore the most affordable flight options available from Heathrow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Explore the most affordable flight options available from Heathrow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Best flights from Heathrow to WashingtonDiscover carefully curated flight deals from Heathrow to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Discover carefully curated flight deals from Heathrow to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Direct flights from Heathrow to WashingtonExplore direct flight options from Heathrow to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2026.

Explore direct flight options from Heathrow to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2026.

Last-minute flights from Heathrow to WashingtonDiscover last-minute flight deals from Heathrow to Washington. Data last updated 12 September 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Washington. Data last updated 12 September 2026 and is based on user searches.

One-way flights from Heathrow to WashingtonSearch for one-way flight options from Heathrow to Washington. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Search for one-way flight options from Heathrow to Washington. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

Find flight deals from Heathrow to Washington

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Washington that are best for you.

Best time to book a flight from Heathrow to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Heathrow with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London Heathrow Airport to State of Washington?

What is the cheapest time of day to fly from LHR to WA?

Find hourly flight availability from Heathrow to Washington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2026.

When flying from London Heathrow Airport to State of Washington, 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 London Heathrow Airport to State of Washington

The most flights from LHR to USWA are scheduled on a Tuesday (24 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost for a return flight from London Heathrow Airport to State of Washington?

Airfare is below average for this route at the moment.

London Heathrow Airport to State of Washington flights typically cost between £493 and £647 in September.The cheapest return price found within the last 5 days was £433 on Air Canada (29 Sept–7 Oct).

How far ahead should I book a flight from London Heathrow Airport to State of Washington?

The price you pay for your flight from London Heathrow Airport to State of Washington may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Washington

Get a feel of what it's like to fly with Alaska Airlines,KLM, andVirgin Atlantic from London Heathrow Airport to Washington by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines to fly from London Heathrow Airport to State of Washington one-way?

What are the most popular routes from London Heathrow Airport to State of Washington?

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

What are the cheapest flights from London Heathrow Airport to State of Washington?

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

How can I find direct flights from Heathrow to Washington?

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

What is the cheapest month to book a flight from London Heathrow Airport to State of Washington?

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Cheapest flights from Heathrow to Washington
Explore the most affordable flight options available from Heathrow to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2026.

Best flights from Heathrow to Washington
Discover carefully curated flight deals from Heathrow to Washington that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2026.

Direct flights from Heathrow to Washington
Explore direct flight options from Heathrow to Washington based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2026.

Last-minute flights from Heathrow to Washington
Discover last-minute flight deals from Heathrow to Washington. Data last updated 12 September 2026 and is based on user searches.

One-way flights from Heathrow to Washington
Search for one-way flight options from Heathrow to Washington. Find affordable one-way fares based on user searches. Data last updated 12 September 2026.

London Heathrow Airport to State of Washington flights typically cost between £493 and £647 in September.
The cheapest return price found within the last 5 days was £433 on Air Canada (29 Sept–7 Oct).