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Cheap flights from Washington to Heathrow (LHR) from $214

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — LHR
May 15 — May 221
From?
To?
Wed 5/15
Wed 5/22
1 adult, Economy
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How far in advance should I book a flight from State of Washington to London Heathrow Airport?

To save up to 65% on this flight, we recommend booking at least 8 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from State of Washington to London Heathrow Airport from $646 1-2 weeks out and tickets from $1,159 for flights departing within the next 72 hours.

What is the cheapest month to fly from State of Washington to London Heathrow Airport?

Flights from State of Washington to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from State of Washington to London Heathrow Airport in November, with the cheapest ticket starting at $560.

When is the cheapest time to fly from State of Washington to London Heathrow Airport (WA - LHR)?

When flying from State of Washington to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Icelandair flights from Washington to Heathrow

Explore cheap flight options specifically provided by Icelandair for the route between Washington and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
Take a look at some of the lowest-priced Icelandair flights heading from Washington to London. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 10/83:50 pmSEA - LHR
1 stop12h 05mIcelandair
Tue 10/159:25 pmLHR - SEA
1 stop28h 30mIcelandair
Deal found 5/9$583
Wed 10/163:50 pmSEA - LHR
1 stop12h 05mIcelandair
Wed 10/239:25 pmLHR - SEA
1 stop28h 30mIcelandair
Deal found 5/9$591
Mon 9/306:55 pmSEA - LHR
1 stop17h 25mIcelandair
Tue 10/81:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$605
Mon 9/306:55 pmSEA - LHR
1 stop17h 25mIcelandair
Fri 10/111:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$606
Mon 10/73:50 pmSEA - LHR
1 stop20h 30mIcelandair
Fri 10/181:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$607
Sun 9/296:55 pmSEA - LHR
1 stop33h 00mIcelandair
Tue 10/81:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$608
Tue 10/83:50 pmSEA - LHR
1 stop12h 05mIcelandair
Tue 10/229:25 pmLHR - SEA
1 stop28h 30mIcelandair
Deal found 5/8$609
Sun 9/226:55 pmSEA - LHR
1 stop17h 25mIcelandair
Wed 10/21:05 pmLHR - SEA
1 stop15h 30mIcelandair
Deal found 5/9$613
Tue 10/293:35 pmSEA - LHR
1 stop12h 20mIcelandair
Wed 11/612:15 pmLHR - SEA
1 stop12h 45mIcelandair
Deal found 5/9$631

Cheap British Airways flights from Washington to Heathrow

Explore cheap flight options specifically provided by British Airways for the route between Washington and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
Some of the lowest-priced British Airways flights we've found at this time heading from Washington to London. Deals are refreshing constantly so come back soon for more options.
Sun 9/291:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Wed 10/99:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$614
Wed 10/23:41 pmSEA - LHR
1 stop14h 44mBritish Airways
Fri 10/189:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$619
Tue 10/17:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Wed 10/99:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$623
Wed 9/257:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Sat 10/59:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$664
Wed 10/237:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Sun 11/102:50 pmLHR - SEA
Nonstop9h 55mBritish Airways
Deal found 5/8$665
Wed 9/187:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Wed 9/254:00 pmLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$677
Tue 10/17:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Sun 10/139:45 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$692
Thu 10/241:30 pmSEA - LHR
Nonstop9h 20mBritish Airways
Sun 11/102:50 pmLHR - SEA
Nonstop9h 55mBritish Airways
Deal found 5/8$715
Tue 9/101:30 pmSEA - LHR
Nonstop9h 20mBritish Airways
Thu 9/269:45 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$720

Cheap Washington to Heathrow flights in May & June 2024

Find cheap flight options from Washington to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Prices were last updated on May 10, 2024.
Check out some of the best flight deals from Washington to London in 2024. For more flight deals, be sure to check back very soon.
Wed 5/151:22 pmSEA - LHR
1 stop15h 23mBritish Airways
Fri 5/242:45 pmLHR - SEA
1 stop16h 20mBritish Airways
Deal found 5/10$756
Tue 5/217:40 amSEA - LHR
1 stop14h 50mUnited Airlines
Tue 6/49:00 amLHR - SEA
1 stop15h 59mUnited Airlines
Deal found 5/9$757
Wed 5/157:15 amSEA - LHR
2 stops19h 25mUnited Airlines
Fri 5/317:25 amLHR - SEA
1 stop17h 34mUnited Airlines
Deal found 5/9$761
Mon 5/201:00 pmSEA - LHR
1 stop13h 40mUnited Airlines
Wed 5/292:05 pmLHR - SEA
2 stops30h 49mUnited Airlines
Deal found 5/9$763
Tue 5/146:38 amSEA - LHR
2 stops18h 22mUnited Airlines
Fri 6/142:05 pmLHR - SEA
1 stop15h 11mUnited Airlines
Deal found 5/8$770
Wed 5/156:38 amSEA - LHR
2 stops21h 07mUnited Airlines
Fri 5/317:25 amLHR - SEA
2 stops23h 25mUnited Airlines
Deal found 5/10$771
Wed 5/158:20 amSEA - LHR
1 stop20h 00mMultiple Airlines
Wed 5/299:30 amLHR - SEA
1 stop19h 46mMultiple Airlines
Deal found 5/9$775
Tue 5/2110:40 amSEA - LHR
2 stops17h 10mAir Canada
Tue 6/49:30 amLHR - SEA
2 stops16h 57mAir Canada
Deal found 5/9$776
Wed 5/152:50 pmSEA - LHR
2 stops33h 05mSWISS
Mon 6/176:40 pmLHR - SEA
2 stops31h 46mSWISS
Deal found 5/8$777

Washington to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Washington and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
Check out some of the best flight deals from Washington to London in 2024. For more flight deals, be sure to check back very soon.
Tue 10/223:50 pmSEA - LHR
1 stop12h 05mIcelandair
Wed 11/208:25 pmLHR - SEA
1 stop28h 35mIcelandair
Deal found 5/9$570
Tue 10/83:50 pmSEA - LHR
1 stop12h 05mIcelandair
Tue 10/159:25 pmLHR - SEA
1 stop28h 30mIcelandair
Deal found 5/9$583
Wed 10/163:50 pmSEA - LHR
1 stop12h 05mIcelandair
Wed 10/239:25 pmLHR - SEA
1 stop28h 30mIcelandair
Deal found 5/9$591
Wed 11/272:35 pmSEA - LHR
1 stop20h 45mIcelandair
Mon 12/28:25 pmLHR - SEA
1 stop28h 35mIcelandair
Deal found 5/10$594
Mon 12/22:35 pmSEA - LHR
1 stop20h 45mIcelandair
Tue 12/1012:15 pmLHR - SEA
1 stop12h 45mIcelandair
Deal found 5/10$599
Mon 9/306:55 pmSEA - LHR
1 stop17h 25mIcelandair
Tue 10/81:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$605
Mon 9/306:55 pmSEA - LHR
1 stop17h 25mIcelandair
Fri 10/111:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$606
Mon 11/42:35 pmSEA - LHR
1 stop20h 45mIcelandair
Fri 11/1512:15 pmLHR - SEA
1 stop12h 45mIcelandair
Deal found 5/9$607
Sun 9/296:55 pmSEA - LHR
1 stop33h 00mIcelandair
Tue 10/81:05 pmLHR - SEA
1 stop12h 50mIcelandair
Deal found 5/9$608

Non-stop flights to Heathrow from Washington

Discover non-stop flight options from Washington to Heathrow. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
For a shorter flight, select one of these non-stop flights from Washington to London. Users can also choose from other Washington to London flights by using the search form above.
Tue 10/87:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Fri 10/189:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$614
Sun 9/227:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Thu 10/39:45 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/10$615
Tue 10/17:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Fri 10/114:00 pmLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$623
Tue 9/247:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Wed 10/29:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/10$625
Wed 9/257:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Thu 10/39:45 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/10$634
Thu 10/31:30 pmSEA - LHR
Nonstop9h 20mBritish Airways
Tue 10/229:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/9$664
Wed 10/237:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Sun 11/102:50 pmLHR - SEA
Nonstop9h 55mBritish Airways
Deal found 5/8$665
Sun 9/227:40 pmSEA - LHR
Nonstop9h 20mBritish Airways
Mon 9/309:50 amLHR - SEA
Nonstop9h 45mBritish Airways
Deal found 5/10$666
Mon 9/239:15 pmSEA - LHR
Nonstop9h 35mKLM
Tue 10/224:50 pmLHR - SEA
Nonstop10h 25mKLM
Deal found 5/9$674

Washington to Heathrow flights leaving soon

Find last-minute flight options from Washington to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
Users seeking a last-minute flight from Washington to London should consider booking one of these fares. It's wise to confirm all flight details are correct before booking.
Wed 5/152:25 pmSEA - LHR
1 stop13h 55mUnited Airlines
Fri 5/317:25 amLHR - SEA
1 stop17h 34mUnited Airlines
Deal found 5/9$761
Mon 5/201:00 pmSEA - LHR
1 stop13h 40mUnited Airlines
Wed 5/292:05 pmLHR - SEA
2 stops30h 49mUnited Airlines
Deal found 5/9$763
Mon 5/207:40 amSEA - LHR
1 stop14h 50mAir Canada
Wed 5/299:30 amLHR - SEA
1 stop19h 46mAir Canada
Deal found 5/9$770
Wed 5/157:15 amSEA - LHR
2 stops19h 25mUnited Airlines
Fri 5/319:00 amLHR - SEA
2 stops21h 50mUnited Airlines
Deal found 5/9$771
Wed 5/157:25 amSEA - LHR
2 stops20h 55mMultiple Airlines
Wed 5/292:05 pmLHR - SEA
1 stop15h 11mMultiple Airlines
Deal found 5/9$775
Mon 5/206:38 amSEA - LHR
2 stops17h 52mUnited Airlines
Wed 5/296:50 amLHR - SEA
2 stops21h 20mUnited Airlines
Deal found 5/9$776
Wed 5/152:50 pmSEA - LHR
2 stops33h 05mSWISS
Mon 6/176:40 pmLHR - SEA
2 stops31h 46mSWISS
Deal found 5/8$777
Wed 5/157:40 pmSEA - LHR
Nonstop9h 20mAmerican Airlines
Fri 5/3112:15 pmLHR - SEA
1 stop18h 26mAmerican Airlines
Deal found 5/9$779
Wed 5/151:22 pmSEA - LHR
1 stop15h 23mAmerican Airlines
Thu 5/2312:15 pmLHR - SEA
1 stop18h 26mAmerican Airlines
Deal found 5/9$783

One-way flights to Heathrow from Washington

Search for one-way flight options from Washington to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
If you're seeking multiple options on one-way flights from Washington to London, be sure to check out these deals, which are updated often. Those seeking round-trip flights from Washington to London should utilize the search form at the the top of the page.
Sun 8/256:15 pmSEA - LHR
3 stops41h 10mMultiple Airlines
Deal found 5/9$214
Mon 8/199:19 amSEA - LHR
2 stops27h 01mMultiple Airlines
Deal found 5/9$222
Sun 8/181:35 pmSEA - LHR
3 stops46h 45mMultiple Airlines
Deal found 5/9$239
Mon 9/236:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 5/9$255
Sat 8/241:35 pmSEA - LHR
3 stops46h 45mMultiple Airlines
Deal found 5/9$260
Sun 9/226:55 pmSEA - LHR
1 stop17h 25mIcelandair
Deal found 5/9$268
Wed 9/253:50 pmSEA - LHR
1 stop12h 05mIcelandair
Deal found 5/9$284
Sat 5/183:50 pmSEA - LHR
1 stop20h 30mIcelandair
Deal found 5/9$289
Thu 10/173:50 pmSEA - LHR
1 stop12h 05mIcelandair
Deal found 5/9$297

Find flights from Washington to Heathrow within your budget

Customize your flight search to find flights from Washington to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$583 - $654

Route

Depart

Return

Price

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 10/8

1 stop12h 05m

London Heathrow

Tue 10/15

1 stop28h 30m

$583

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 9/29

Nonstop9h 20m

London Heathrow

Wed 10/9

Nonstop9h 45m

$614

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 10/8

Nonstop9h 20m

London Heathrow

Tue 10/22

Nonstop9h 45m

$615

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 10/1

1 stop14h 04m

London Heathrow

Fri 10/11

Nonstop9h 45m

$620

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 10/29

Nonstop9h 20m

London Heathrow

Thu 11/7

1 stop16h 23m

$624

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Tue 10/1

2 stops15h 20m

London Heathrow

Tue 10/8

2 stops17h 46m

$638

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Wed 10/16

2 stops17h 10m

London Heathrow

Wed 10/23

2 stops33h 40m

$641

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Mon 11/4

1 stop12h 30m

London Heathrow

Fri 11/15

2 stops19h 26m

$651

Seattle/Tacoma IntlLondon Heathrow

SEA - LHR

SEALHR

Seattle/Tacoma Intl

Sun 10/27

2 stops18h 20m

London Heathrow

Fri 11/8

2 stops19h 38m

$654

Flights are sorted by cheapest first

Deals found on 5/9

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated May 10, 2024.
Read through reviews of airlines operating flights from Washington to London, such as Icelandair, British Airways and American Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Alaska Airlines
8.1
Very good
9,142 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Delta
8.0
Very good
10,768 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

KLM
7.9
Good
1,590 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

SWISS
7.8
Good
2,008 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Finnair
7.8
Good
1,378 reviews
Alaska Airlines
8.1
Very good
9,142 reviews
Check prices

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Boarding

8.2

Entertainment

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Related info for your journey

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

  • Can I find flights from State of Washington to London Heathrow Airport for under $600 on Cheapflights?

    Yes, there are multiple flights from State of Washington to London Heathrow Airport for under $600. The cheapest flight booked recently is on Icelandair for just $583, but on average you can expect to pay $614.

  • Are there nonstop flights from State of Washington to London Heathrow Airport for under $700 on Cheapflights?

    Cheapflights has at least 20 direct flights from State of Washington to London Heathrow Airport under $700. A good price for a nonstop flight from State of Washington to London Heathrow Airport is less than $673.

  • Are there last-minute flights available from State of Washington to London Heathrow Airport for under $800?

    There are currently 20+ open flights from State of Washington to London Heathrow Airport within the next 7 days for less than $800.

  • What days are nonstop flights available from State of Washington to London Heathrow Airport?

    Nonstop flights are available for this route on the following days: Tuesday, Friday, Saturday.

  • How many flights depart from State of Washington to London Heathrow Airport on average per day?

    Travelers can expect 5 flights from State of Washington to London Heathrow Airport on average per day.
    Afternoon (Noon - 6pm) - 40% of flight departures
    Evening (6pm - Midnight) - 60% of flight departures

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

    There are many flights that can get you from State of Washington to London Heathrow Airport in 9h 20m. Fly via Icelandair, British Airways, or American Airlines to get the fastest option. There are 4812 mi between State of Washington and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Spokane - London Heathrow or Pasco Tri Cities - London Heathrow, Seattle/Tacoma Intl - London Heathrow is the most popular route from State of Washington to London Heathrow Airport.

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

    When booking a flight from State of Washington to London Heathrow Airport, you may want to consider flying on American Airlines, Air Canada or Air France as they are the most popular for this route.

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

    No one likes to see their flight delayed. When booking a flight from State of Washington to London Heathrow Airport consider choosing Air France (74%), Delta (74%) or KLM (74%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay $3,035 for a flight from State of Washington to London Heathrow Airport. The cheapest flight overall is $476 while the most popular route, (Seattle/Tacoma Intl - London Heathrow) is currently priced at $584.

  • What does SEA to LHR mean?

    SEA stands for Seattle/Tacoma Intl Airport, while LHR stands for London Heathrow Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Spokane Airport (GEG), Pasco Tri Cities Airport (PSC), Bellingham Airport (BLI), Everett Paine Field Airport (PAE), Seattle Lake Union Spb Airport (LKE).

  • Can I find deals for flights from Washington to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Washington to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Washington to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Washington to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Washington to Heathrow?

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

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

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

  • Can I find deals for flights from Washington to Heathrow that allow pets onboard?

    Many airlines flying from Washington to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Washington to Heathrow?

    Yes, you can often find last-minute deals on Washington to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the State of Washington to London Heathrow Airport flight deals updated?

    The State of Washington to London Heathrow Airport flight deals you see on this page were last updated on 5/10.

See more FAQs

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Alternative routes for Washington to Heathrow
See prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from Washington to Heathrow

Discover the top 10 airlines that operate flights from Washington to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,717,708 searches. Data last updated May 10, 2024.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$402Average$795FlexibilityNo cancel feeOn-time76%
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Alaska AirlinesCheapest$454Average$1,076FlexibilityNo cancel feeOn-time75%
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IcelandairCheapest$519Average$932FlexibilityNo cancel feeOn-time76%
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Aer LingusCheapest$558Average$845FlexibilityNo cancel feeOn-timeN/A
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FinnairCheapest$572Average$942FlexibilityNo cancel feeOn-time76%
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United AirlinesCheapest$575Average$917FlexibilityNo cancel feeOn-time69%
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IberiaCheapest$583Average$843FlexibilityNo cancel feeOn-time77%
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Virgin AtlanticCheapest$586Average$918FlexibilityNo cancel feeOn-time72%
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Air FranceCheapest$588Average$878FlexibilityNo cancel feeOn-time77%
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DeltaCheapest$595Average$902FlexibilityNo cancel feeOn-timeN/A
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Search flights from Washington to Heathrow by cabin class

Find flights from Washington to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from Washington to Heathrow

Find hourly flight availability from Washington to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 10, 2024.
1%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
52%of flight departuresAfternoonNoon to 6 pm
47%of flight departuresEvening6 pm to midnight
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6 AM
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6 PM

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