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

United Airlines, Lufthansa, and Delta can get you from London Heathrow Airport to State of Washington in just under 13h 15m. Your travel time can differ by up to 11h 50m. 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 £353 on Iberia. Other airlines that offer cheap prices include Aer Lingus from £384 and British Airways from £398 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 £1,561, our data indicates the cheapest price to be £436. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around £376.

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 American Airlines, Air Canada or Air France 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.

£353+ Flights from London Heathrow Airport to Washington

Q: 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 £457 and £555 in October. The cheapest return flight price found within the last 3 days was £442 on Scandinavian Airlines (17 Oct-24 Oct).

Cheap flight deals from Heathrow to Washington

Round-trip from	£442
One-way from	£366
Popular in	July
Cheapest in	January
Average price	£496
Good round-trip deal	£511 or less
Good one-way deal	£575 or less

Scandinavian Airlines
17/10-24/10
3 total stops
54h 35m total
London to Washington

Search Deals

Aer Lingus
7/10
1 total stop
28h 40m total
London to Washington

Search Deals

Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

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

Find flight deals from Heathrow to Washington

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 17 September 2025.

Mon 22/908:30LHR - SEA

2 stops18h 06mAir Canada

Mon 6/1010:00SEA - LHR

2 stops15h 35mAir Canada

Deal found 15/9£442

Wed 8/1006:30LHR - SEA

2 stops15h 46mMultiple Airlines

Tue 14/1005:30SEA - LHR

2 stops17h 00mMultiple Airlines

Deal found 15/9£444

Wed 5/1112:15LHR - SEA

1 stop12h 45mIcelandair

Sun 15/315:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 15/9£444

Wed 1/1010:30LHR - SEA

1 stop18h 53mFinnair

Sun 5/1000:34SEA - LHR

2 stops21h 46mFinnair

Deal found 15/9£445

Sun 16/1106:00LHR - SEA

2 stops25h 15mSWISS

Sat 29/1110:05SEA - LHR

2 stops16h 05mSWISS

Deal found 15/9£446

Sun 28/906:00LHR - SEA

2 stops23h 15mSWISS

Wed 15/1013:00SEA - LHR

2 stops20h 50mSWISS

Deal found 16/9£447

Mon 29/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 13/1005:25SEA - LHR

1 stop20h 25mVirgin Atlantic

Deal found 16/9£447

Fri 26/910:50LHR - SEA

1 stop14h 09mLufthansa

Sun 12/1013:57SEA - LHR

1 stop13h 48mLufthansa

Deal found 16/9£448

Mon 13/1006:30LHR - SEA

1 stop13h 25mMultiple Airlines

Mon 20/1014:55SEA - LHR

1 stop14h 25mMultiple Airlines

Deal found 15/9£449

Wed 15/1008:40LHR - SEA

2 stops17h 56mAir Canada

Wed 22/1014:55SEA - LHR

1 stop14h 25mAir Canada

Deal found 15/9£449

Fri 17/1008:40LHR - SEA

2 stops17h 56mAir Canada

Mon 20/1010:00SEA - LHR

2 stops15h 35mAir Canada

Deal found 15/9£450

Thu 16/1008:40LHR - SEA

2 stops17h 56mAir Canada

Sat 8/1115:40SEA - LHR

1 stop12h 10mAir Canada

Deal found 16/9£451

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 17 September 2025.

Thu 6/1107:30LHR - SEA

2 stops18h 40mUnited Airlines

Thu 13/1119:13SEA - LHR

2 stops18h 07mUnited Airlines

Deal found 14/9£448

Tue 6/120:15LHR - SEA

1 stop25h 05mLufthansa

Tue 10/210:05SEA - LHR

2 stops16h 05mLufthansa

Deal found 16/9£449

Tue 18/1106:30LHR - SEA

1 stop13h 15mDelta

Tue 2/1216:50SEA - LHR

Nonstop9h 40mDelta

Deal found 16/9£459

Mon 1/1211:00LHR - SEA

1 stop31h 05mBritish Airways

Mon 19/110:30SEA - LHR

1 stop17h 10mBritish Airways

Deal found 16/9£460

Wed 19/1106:30LHR - SEA

1 stop13h 15mMultiple Airlines

Thu 27/1116:48SEA - LHR

Nonstop9h 42mMultiple Airlines

Deal found 16/9£461

Wed 8/1009:30LHR - PDX

2 stops17h 16mAir Canada

Thu 16/1006:15PDX - LHR

2 stops19h 20mAir Canada

Deal found 17/9£504

Thu 5/314:30LHR - PSC

2 stops30h 41mAmerican Airlines

Mon 9/309:00PSC - LHR

2 stops19h 35mAmerican Airlines

Deal found 13/9£515

Sun 23/1112:15LHR - PDX

1 stop12h 45mIcelandair

Thu 27/1114:45PDX - LHR

1 stop20h 45mIcelandair

Deal found 16/9£518

Thu 30/1015:30LHR - SEA

1 stop28h 40mUnited Airlines

Tue 4/1108:36SEA - LHR

2 stops17h 49mUnited Airlines

Deal found 16/9£448

Mon 24/1106:30LHR - SEA

1 stop13h 15mDelta

Mon 1/1216:50SEA - LHR

Nonstop9h 40mDelta

Deal found 16/9£459

Thu 30/1011:35LHR - GEG

1 stop16h 10mMultiple Airlines

Thu 6/1112:45GEG - LHR

1 stop34h 40mMultiple Airlines

Deal found 15/9£480

Tue 10/307:40LHR - GEG

2 stops20h 29mLufthansa

Tue 17/313:45GEG - LHR

2 stops38h 05mLufthansa

Deal found 15/9£485

Wed 8/1008:20LHR - PDX

1 stop16h 44mBritish Airways

Thu 16/1019:25PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 17/9£499

Mon 13/1006:30LHR - SEA

1 stop13h 25mUnited Airlines

Mon 20/1007:00SEA - LHR

2 stops19h 10mUnited Airlines

Deal found 15/9£455

Mon 6/1014:10LHR - PDX

1 stop27h 10mAir Canada

Fri 17/1006:15PDX - LHR

2 stops19h 20mAir Canada

Deal found 17/9£504

Tue 2/1211:45LHR - SEA

1 stop32h 05mDelta

Wed 18/216:55SEA - LHR

Nonstop9h 35mDelta

Deal found 14/9£459

Sun 5/1010:35LHR - GEG

1 stop20h 40mMultiple Airlines

Fri 17/1007:15GEG - LHR

1 stop16h 10mMultiple Airlines

Deal found 16/9£482

Fri 21/1115:00LHR - PDX

2 stops26h 15mAir Canada

Sat 29/1109:50PDX - LHR

1 stop18h 00mAir Canada

Deal found 16/9£504

Sat 6/1209:00LHR - PSC

2 stops19h 47mUnited Airlines

Sun 14/1206:25PSC - LHR

1 stop21h 35mUnited Airlines

Deal found 14/9£460

Wed 19/1106:30LHR - SEA

1 stop13h 15mDelta

Wed 26/1116:48SEA - LHR

Nonstop9h 42mDelta

Deal found 16/9£461

Wed 19/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Thu 27/1105:30PDX - LHR

1 stop22h 45mBritish Airways

Deal found 16/9£513

Wed 5/1113:45LHR - PDX

Nonstop10h 10mMultiple Airlines

Wed 19/1114:30PDX - LHR

1 stop13h 50mMultiple Airlines

Deal found 17/9£500

Fri 6/314:30LHR - PDX

1 stop26h 45mAir Canada

Tue 10/315:15PDX - LHR

1 stop13h 35mAir Canada

Deal found 16/9£507

Mon 17/1106:30LHR - SEA

1 stop13h 15mDelta

Wed 26/1116:48SEA - LHR

Nonstop9h 42mDelta

Deal found 16/9£461

Thu 30/1006:35LHR - GEG

2 stops37h 10mUnited Airlines

Thu 6/1105:10GEG - LHR

1 stop20h 30mUnited Airlines

Deal found 15/9£463

Mon 17/1106:30LHR - SEA

1 stop13h 15mDelta

Tue 25/1119:20SEA - LHR

Nonstop9h 30mDelta

Deal found 16/9£461

Tue 10/306:35LHR - GEG

2 stops37h 34mUnited Airlines

Tue 17/314:05GEG - LHR

1 stop14h 55mUnited Airlines

Deal found 16/9£464

Mon 6/1006:30LHR - PDX

2 stops16h 16mMultiple Airlines

Fri 17/1006:15PDX - LHR

2 stops16h 15mMultiple Airlines

Deal found 17/9£518

Wed 29/1007:30LHR - GEG

2 stops20h 15mUnited Airlines

Wed 5/1106:00GEG - LHR

2 stops23h 30mUnited Airlines

Deal found 14/9£465

Mon 3/1113:45LHR - PDX

Nonstop10h 10mMultiple Airlines

Mon 17/1117:45PDX - LHR

Nonstop9h 35mMultiple Airlines

Deal found 16/9£521

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 17 September 2025.

Wed 8/1013:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Tue 14/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 15/9£444

Mon 17/1112:20LHR - SEA

Nonstop10h 28mVirgin Atlantic

Wed 26/1116:48SEA - LHR

Nonstop9h 42mVirgin Atlantic

Deal found 16/9£444

Tue 24/214:45LHR - SEA

Nonstop10h 05mVirgin Atlantic

Tue 3/319:20SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 16/9£445

Mon 29/913:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 13/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 15/9£448

Tue 10/309:25LHR - SEA

Nonstop10h 05mBritish Airways

Tue 17/314:25SEA - LHR

Nonstop9h 35mBritish Airways

Deal found 15/9£450

Tue 2/1214:55LHR - SEA

Nonstop10h 00mBritish Airways

Wed 18/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 14/9£459

Mon 6/1013:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 20/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 15/9£460

Tue 14/1013:25LHR - SEA

Nonstop10h 05mVirgin Atlantic

Mon 20/1017:35SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 14/9£461

Wed 26/1113:45LHR - PDX

Nonstop10h 10mBritish Airways

Wed 21/117:45PDX - LHR

Nonstop9h 35mBritish Airways

Deal found 16/9£510

Mon 3/1113:45LHR - PDX

Nonstop10h 10mMultiple Airlines

Mon 17/1117:45PDX - LHR

Nonstop9h 35mMultiple Airlines

Deal found 16/9£521

Mon 3/1113:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Mon 17/1117:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 16/9£522

Wed 4/313:45LHR - PDX

Nonstop10h 10mAmerican Airlines

Fri 13/318:45PDX - LHR

Nonstop9h 35mAmerican Airlines

Deal found 16/9£524

Last-minute flights from Heathrow to Washington
Discover last-minute flight deals from Heathrow to Washington. Data last updated 17 September 2025 and is based on user searches.

Mon 22/908:30LHR - SEA

2 stops18h 06mAir Canada

Mon 6/1010:00SEA - LHR

2 stops15h 35mAir Canada

Deal found 15/9£442

Mon 22/919:45LHR - SEA

1 stop23h 30mVirgin Atlantic

Mon 6/1021:59SEA - LHR

1 stop14h 01mVirgin Atlantic

Deal found 15/9£445

Mon 22/906:00LHR - SEA

2 stops22h 42mAustrian Airlines

Mon 6/1008:00SEA - LHR

1 stop14h 55mAustrian Airlines

Deal found 15/9£446

Tue 23/914:05LHR - SEA

2 stops27h 17mAir Canada

Sun 12/1007:15SEA - LHR

1 stop15h 15mAir Canada

Deal found 16/9£456

Wed 24/913:05LHR - SEA

1 stop12h 45mIcelandair

Thu 16/1015:45SEA - LHR

1 stop12h 10mIcelandair

Deal found 16/9£455

Thu 25/906:30LHR - SEA

1 stop13h 25mLufthansa

Sun 12/1013:12SEA - LHR

1 stop13h 28mLufthansa

Deal found 16/9£449

Fri 26/910:50LHR - SEA

1 stop14h 09mLufthansa

Mon 13/1013:12SEA - LHR

1 stop13h 28mLufthansa

Deal found 16/9£448

Mon 29/908:20LHR - PDX

1 stop16h 44mBritish Airways

Mon 20/1013:16PDX - LHR

1 stop13h 14mBritish Airways

Deal found 16/9£498

Sun 5/1010:35LHR - GEG

1 stop20h 40mMultiple Airlines

Fri 17/1007:15GEG - LHR

1 stop16h 10mMultiple Airlines

Deal found 16/9£482

Sun 5/1012:20LHR - GEG

1 stop18h 55mUnited Airlines

Fri 17/1005:05GEG - LHR

2 stops20h 15mUnited Airlines

Deal found 16/9£488

Thu 30/1006:35LHR - GEG

2 stops37h 10mUnited Airlines

Thu 6/1113:47GEG - LHR

2 stops22h 48mUnited Airlines

Deal found 15/9£463

Thu 30/1011:35LHR - GEG

1 stop16h 10mMultiple Airlines

Thu 6/1112:45GEG - LHR

1 stop34h 40mMultiple Airlines

Deal found 15/9£480

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 17 September 2025.

Tue 7/1021:10LHR - SEA

1 stop28h 40mAer Lingus

Deal found 15/9£366

Mon 15/1209:55LHR - SEA

2 stops32h 33mMultiple Airlines

Deal found 15/9£368

Tue 14/1020:50LHR - SEA

3 stops31h 45mMultiple Airlines

Deal found 15/9£372

Fri 14/1106:00LHR - SEA

2 stops22h 46mMultiple Airlines

Deal found 15/9£373

Tue 4/1109:25LHR - SEA

Nonstop10h 05mFinnair

Deal found 15/9£374

Wed 29/1018:30LHR - SEA

2 stops33h 07mMultiple Airlines

Deal found 15/9£375

Wed 15/1020:50LHR - SEA

2 stops45h 59mMultiple Airlines

Deal found 16/9£377

Sun 14/1209:55LHR - SEA

2 stops34h 40mMultiple Airlines

Deal found 15/9£379

Thu 30/1006:00LHR - SEA

2 stops21h 37mMultiple Airlines

Deal found 15/9£381

Thu 4/1214:50LHR - SEA

1 stop31h 30mWestJet

Deal found 15/9£381

Wed 24/914:10LHR - PDX

2 stops35h 08mMultiple Airlines

Deal found 16/9£444

Thu 13/1110:10LHR - PDX

2 stops20h 31mVirgin Atlantic

Deal found 16/9£445

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

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 6/11

07:30-18:10

2 stops18h 40m

Seattle/Tacoma Intl

Thu 13/11

19:13-21:20

2 stops18h 07m

£448

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Thu 30/10

15:30-13:10

1 stop28h 40m

Seattle/Tacoma Intl

Tue 4/11

08:36-10:25

2 stops17h 49m

£448

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 6/1

20:15-13:20

1 stop25h 05m

Seattle/Tacoma Intl

Tue 10/2

10:05-10:10

2 stops16h 05m

£449

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 13/10

06:30-11:55

1 stop13h 25m

Seattle/Tacoma Intl

Mon 20/10

07:00-10:10

2 stops19h 10m

£455

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 18/11

06:30-11:45

1 stop13h 15m

Seattle/Tacoma Intl

Tue 2/12

16:50-10:30

Nonstop9h 40m

£459

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 24/11

06:30-11:45

1 stop13h 15m

Seattle/Tacoma Intl

Mon 1/12

16:50-10:30

Nonstop9h 40m

£459

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Tue 2/12

11:45-11:50

1 stop32h 05m

Seattle/Tacoma Intl

Wed 18/2

16:55-10:30

Nonstop9h 35m

£459

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Mon 1/12

11:00-10:05

1 stop31h 05m

Seattle/Tacoma Intl

Mon 19/1

10:30-11:40

1 stop17h 10m

£460

LondonPasco

LHR - PSC

LHRPSC

London Heathrow

Sat 6/12

09:00-20:47

2 stops19h 47m

Pasco Tri Cities

Sun 14/12

06:25-12:00

1 stop21h 35m

£460

LondonSeattle

LHR - SEA

LHRSEA

London Heathrow

Wed 19/11

06:30-11:45

1 stop13h 15m

Seattle/Tacoma Intl

Thu 27/11

16:48-10:30

Nonstop9h 42m

£461

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 60 results

...

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.

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

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

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of £622). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of £946). 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 Monday (21 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (10 on average).

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

Reviews of airlines servicing Washington

Get a feel of what it's like to fly with KLM, Air France, 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.

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,386 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Air France

7.4

Good

1,468 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Virgin Atlantic

7.4

Good

664 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Icelandair

7.0

Good

544 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

British Airways

6.7

Okay

7,363 reviews

KLM

7.8

Good

1,386 reviews

Check prices

Reviews

1 / 20

4.0

Okay

Mark,Sept 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Related info for your journey

How long is the flight from London Heathrow Airport to State of Washington?
United Airlines, Lufthansa, and Delta can get you from London Heathrow Airport to State of Washington in just under 13h 15m. Your travel time can differ by up to 11h 50m. 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 £353 on Iberia. Other airlines that offer cheap prices include Aer Lingus from £384 and British Airways from £398 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 Scandinavian Airlines (95%), KLM (93%) and Air France (93%).
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 £1,561, our data indicates the cheapest price to be £436. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around £376.
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, January is the cheapest month in which you can book a flight from London Heathrow Airport to State of Washington (average of £622). Flying from London Heathrow Airport to State of Washington in July is currently the most expensive (average of £946). 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

Browse thousands of different options on Cheapflights for your next trip

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Heathrow to Dallas/Fort Worth flights

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Complete your trip

State of Washington car hire

Seattle/Tacoma Intl Airport car hire

Spokane Airport car hire

Pasco Tri Cities Airport car hire

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Wenatchee Pangborn Field Airport car hire

Pullman Moscow Regional Airport car hire

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Direct flights to United States

Top 10 airlines flying from Heathrow to Washington

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£349	Average£464	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Air France	Cheapest£379	Average£566	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Lufthansa	Cheapest£389	Average£534	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£390	Average£535	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£398	Average£592	FlexibilityNo cancel fee	On-time75%	Search KLM flights
United Airlines	Cheapest£399	Average£607	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£400	Average£652	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
British Airways	Cheapest£421	Average£587	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£432	Average£655	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Delta	Cheapest£438	Average£586	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

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Cheap flights from London Heathrow Airport to Washington from £353

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 16/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Washington

Keep the following information in mind while searching for Heathrow to Washington flight deals. Data was last updated 17 September 2025.

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Find 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 17 September 2025.

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 17 September 2025.

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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

Everything you need to know about your flight from London Heathrow Airport to Washington

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 17 September 2025.

Weekly flight availability from London Heathrow Airport to State of Washington

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

Reviews of airlines servicing Washington

Get a feel of what it's like to fly with KLM, Air France, 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

Find useful and relevant information for your journey from Heathrow to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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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Alternative routes for Heathrow to Washington

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Heathrow to 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 17 September 2025.