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Cheap flights from London Heathrow Airport to Seattle from £269

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 8/5. 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.
LHR — SEA
25 Apr — 2 May1
1 adult
Thu 25/4
Thu 2/5

The best prices from London Heathrow to Seattle/Tacoma Intl are usually found in January or February, booked 45 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Heathrow to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 April 2024.

Popular in

July

Cheapest in

January

Round-trip from

£464

One-way from

£404
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 15% potential price drop
Search Deals
From London Heathrow to Seattle/Tacoma Intl
Search Deals
One-way flight from London Heathrow to Seattle/Tacoma Intl
Search Deals

What is the cheapest day to fly round-trip from London Heathrow Airport to Seattle?

Users have found that flying from London Heathrow Airport to Seattle on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

How far in advance should I book a flight from London Heathrow Airport to Seattle?

Find a great deal and save up to 24% by booking at least 49 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London Heathrow Airport to Seattle within the next two weeks, with the cheapest ticket starting at £564.

What is the cheapest month to fly from London Heathrow Airport to Seattle?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Seattle. Flights to Seattle from London Heathrow Airport in February are about £537 on average during February, but can be found for as low as £349.

When is the cheapest time to fly from London Heathrow Airport to Seattle (LHR - SEA)?

It’s typically best to fly out from London Heathrow Airport to Seattle in the evening. Doing so could potentially save you 7% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap SWISS flights from Heathrow to Seattle

Explore cheap flight options specifically provided by SWISS for the route between Heathrow and Seattle. 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 899,432 searches. Data last updated 20 April 2024.
Take a peek at the cheapest SWISS flights we've detected travelling from London to Seattle. Make sure to check back often as deals are often changing.
Fri 3/506:00LHR - SEA
2 stops24h 34mSWISS
Thu 16/513:10SEA - LHR
2 stops38h 15mSWISS
Deal found 19/4£599
Tue 21/506:00LHR - SEA
2 stops23h 34mSWISS
Tue 4/613:10SEA - LHR
2 stops24h 35mSWISS
Deal found 19/4£620

Cheap Iberia flights from Heathrow to Seattle

Explore cheap flight options specifically provided by Iberia for the route between Heathrow and Seattle. 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 899,432 searches. Data last updated 20 April 2024.
To aid your search, here are some of the cheapest Iberia flights we've found from London to Seattle. Deals frequently update to provide users with more options.
Thu 16/516:00LHR - SEA
Nonstop9h 45mIberia
Thu 23/513:30SEA - LHR
Nonstop9h 20mIberia
Deal found 18/4£615
Wed 24/411:05LHR - SEA
1 stop18h 21mIberia
Wed 15/513:30SEA - LHR
Nonstop9h 20mIberia
Deal found 19/4£824

Cheap Heathrow to Seattle flights in April & May 2024

Find cheap flight options from Heathrow to Seattle specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 899,432 searches. Prices were last updated on 20 April 2024.
Scroll through some of the best deals on flights from London to Seattle in 2024. Check back soon for alternative fares.
Wed 8/521:25LHR - SEA
1 stop31h 10mIcelandair
Wed 6/1114:35SEA - LHR
1 stop20h 45mIcelandair
Deal found 19/4£491
Tue 14/506:30LHR - SEA
1 stop13h 55mLufthansa
Tue 21/507:15SEA - LHR
1 stop14h 40mLufthansa
Deal found 19/4£498
Tue 7/521:25LHR - SEA
1 stop28h 15mIcelandair
Wed 15/515:50SEA - LHR
1 stop20h 30mIcelandair
Deal found 20/4£500
Tue 7/506:30LHR - SEA
1 stop13h 55mLufthansa
Tue 21/507:15SEA - LHR
1 stop14h 40mLufthansa
Deal found 19/4£516
Mon 29/412:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Mon 13/516:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/4£517
Fri 31/521:25LHR - SEA
1 stop21h 55mIcelandair
Thu 6/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/4£518
Mon 29/417:30LHR - SEA
1 stop24h 47mVirgin Atlantic
Mon 13/521:10SEA - LHR
Nonstop9h 40mVirgin Atlantic
Deal found 19/4£520
Sun 19/521:25LHR - SEA
1 stop28h 15mIcelandair
Wed 29/523:00SEA - LHR
1 stop13h 20mIcelandair
Deal found 19/4£520
Wed 22/521:25LHR - SEA
1 stop21h 55mIcelandair
Tue 4/618:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 19/4£522

Heathrow to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 899,432 searches. Data last updated 20 April 2024.
Scroll through some of the best deals on flights from London to Seattle in 2024. Check back soon for alternative fares.
Tue 17/910:50LHR - SEA
1 stop14h 09mMultiple Airlines
Tue 24/908:10SEA - LHR
1 stop14h 35mMultiple Airlines
Deal found 19/4£481
Thu 17/1013:10LHR - SEA
1 stop12h 45mIcelandair
Thu 24/1015:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 18/4£485
Wed 2/1013:05LHR - SEA
1 stop12h 50mIcelandair
Thu 10/1015:50SEA - LHR
1 stop20h 30mIcelandair
Deal found 19/4£488
Tue 17/913:05LHR - SEA
1 stop15h 30mIcelandair
Tue 24/918:55SEA - LHR
1 stop33h 00mIcelandair
Deal found 19/4£490
Wed 8/521:25LHR - SEA
1 stop31h 10mIcelandair
Wed 6/1114:35SEA - LHR
1 stop20h 45mIcelandair
Deal found 19/4£491
Tue 17/913:05LHR - SEA
1 stop12h 50mIcelandair
Mon 30/915:50SEA - LHR
1 stop12h 05mIcelandair
Deal found 19/4£494
Wed 6/1112:15LHR - SEA
1 stop12h 45mIcelandair
Wed 13/1114:35SEA - LHR
1 stop20h 45mIcelandair
Deal found 19/4£496
Tue 14/506:30LHR - SEA
1 stop13h 55mLufthansa
Tue 21/507:15SEA - LHR
1 stop14h 40mLufthansa
Deal found 19/4£498
Tue 18/621:25LHR - SEA
1 stop21h 55mIcelandair
Mon 24/623:00SEA - LHR
1 stop28h 55mIcelandair
Deal found 19/4£499

Direct flights to Seattle from Heathrow

Discover direct flight options from Heathrow to Seattle. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 899,432 searches. Data last updated 20 April 2024.
Consider booking one of these non-stop flights heading from London to Seattle. If you're looking for other options for flights from London to Seattle, make sure to update the search form at the top of page.
Tue 17/909:50LHR - SEA
Nonstop9h 45mFinnair
Mon 30/913:30SEA - LHR
Nonstop9h 20mFinnair
Deal found 19/4£526
Sat 14/912:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Mon 23/916:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/4£529
Tue 17/912:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 24/916:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/4£534
Wed 8/516:50LHR - SEA
Nonstop10h 30mVirgin Atlantic
Wed 6/1118:05SEA - LHR
Nonstop9h 35mVirgin Atlantic
Deal found 19/4£538
Sat 14/916:50LHR - SEA
Nonstop10h 30mVirgin Atlantic
Mon 23/921:15SEA - LHR
Nonstop9h 35mVirgin Atlantic
Deal found 19/4£541
Mon 23/912:45LHR - SEA
Nonstop9h 55mDelta
Mon 30/921:15SEA - LHR
Nonstop9h 35mDelta
Deal found 19/4£542
Mon 16/912:45LHR - SEA
Nonstop9h 55mDelta
Mon 23/916:30SEA - LHR
Nonstop9h 20mDelta
Deal found 19/4£545
Tue 14/509:50LHR - SEA
Nonstop9h 45mBritish Airways
Tue 21/519:40SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 19/4£546
Mon 16/916:50LHR - SEA
Nonstop10h 30mDelta
Tue 24/916:30SEA - LHR
Nonstop9h 20mDelta
Deal found 19/4£549

Heathrow to Seattle flights leaving soon

Find last-minute flight options from Heathrow to Seattle 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 899,432 searches. Data last updated 20 April 2024.
Have a look at some of the flights available from London to Seattle departing last-minute. Users should examine the flight details to ensure there are no surprises.
Mon 29/412:45LHR - SEA
Nonstop9h 55mVirgin Atlantic
Mon 13/516:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/4£517
Mon 29/417:30LHR - SEA
1 stop24h 47mVirgin Atlantic
Mon 13/521:10SEA - LHR
Nonstop9h 40mVirgin Atlantic
Deal found 19/4£520
Mon 29/417:15LHR - SEA
1 stop29h 30mVirgin Atlantic
Mon 13/516:30SEA - LHR
Nonstop9h 20mVirgin Atlantic
Deal found 19/4£524
Mon 29/412:45LHR - SEA
Nonstop9h 55mDelta
Mon 13/521:10SEA - LHR
Nonstop9h 40mDelta
Deal found 19/4£531
Mon 29/413:55LHR - SEA
2 stops27h 30mDelta
Mon 13/521:10SEA - LHR
Nonstop9h 40mDelta
Deal found 19/4£533
Wed 1/513:05LHR - SEA
1 stop12h 35mIcelandair
Wed 15/515:50SEA - LHR
1 stop20h 30mIcelandair
Deal found 19/4£552
Fri 3/512:15LHR - SEA
1 stop16h 03mLufthansa
Tue 7/514:21SEA - LHR
1 stop13h 24mLufthansa
Deal found 19/4£553
Thu 2/513:10LHR - SEA
1 stop12h 30mIcelandair
Thu 9/518:55SEA - LHR
1 stop17h 25mIcelandair
Deal found 18/4£556
Fri 3/506:30LHR - SEA
2 stops15h 57mMultiple Airlines
Wed 22/510:40SEA - LHR
2 stops15h 20mMultiple Airlines
Deal found 19/4£563

One-way flights to Seattle from Heathrow

Search for one-way flight options from Heathrow to Seattle. 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 899,432 searches. Data last updated 20 April 2024.
If you're seeking multiple options on one-way flights from London to Seattle, be sure to check out these deals, which are updated often. Those needing a return flight from London to Seattle can use the search form above.
Wed 8/506:40LHR - SEA
3 stops45h 49mMultiple Airlines
Deal found 19/4£269
Mon 30/907:55LHR - SEA
2 stops37h 01mMultiple Airlines
Deal found 18/4£282
Tue 14/506:40LHR - SEA
2 stops21h 55mMultiple Airlines
Deal found 18/4£317
Mon 20/521:05LHR - SEA
3 stops33h 45mMultiple Airlines
Deal found 19/4£324
Tue 21/520:35LHR - SEA
2 stops44h 22mMultiple Airlines
Deal found 19/4£325
Wed 8/513:45LHR - SEA
2 stops28h 38mMultiple Airlines
Deal found 19/4£326
Thu 9/519:45LHR - SEA
3 stops45h 00mMultiple Airlines
Deal found 19/4£330
Thu 9/506:40LHR - SEA
2 stops21h 55mMultiple Airlines
Deal found 19/4£336
Tue 10/906:55LHR - SEA
3 stops35h 53mMultiple Airlines
Deal found 19/4£338

Find flights from Heathrow to Seattle within your budget

Customise your flight search to find flights from Heathrow to Seattle 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 899,432 searches. Data last updated 20 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£481 - £537

Route

Depart

Return

Price

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 17/9

1 stop14h 09m

Seattle/Tacoma Intl

Tue 24/9

1 stop14h 35m

£481

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Wed 2/10

1 stop12h 50m

Seattle/Tacoma Intl

Thu 10/10

1 stop20h 30m

£488

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 14/5

1 stop13h 55m

Seattle/Tacoma Intl

Tue 21/5

1 stop14h 40m

£498

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 29/4

Nonstop9h 55m

Seattle/Tacoma Intl

Mon 13/5

Nonstop9h 20m

£517

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 17/9

Nonstop9h 45m

Seattle/Tacoma Intl

Mon 30/9

Nonstop9h 20m

£526

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Wed 8/5

1 stop12h 55m

Seattle/Tacoma Intl

Wed 6/11

Nonstop9h 35m

£527

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 17/9

1 stop19h 45m

Seattle/Tacoma Intl

Tue 24/9

2 stops16h 40m

£528

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 29/4

Nonstop10h 20m

Seattle/Tacoma Intl

Mon 13/5

Nonstop9h 20m

£531

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 24/9

1 stop15h 59m

Seattle/Tacoma Intl

Wed 2/10

1 stop14h 40m

£537

Flights are sorted by cheapest first

Deals found on 19/4

When is the best time to book a flight from London Heathrow Airport to Seattle?

Use this chart to determine the optimal time to book a return flight from Heathrow to Seattle. Price data was last updated on 28 January 2024.
The best time to book flights from London Heathrow Airport to Seattle is 45 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.
Search Deals

When is the cheapest time to fly from London Heathrow Airport to Seattle?

Use this chart to determine the cheapest time to fly return from Heathrow to Seattle. Price data was last updated on 14 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to Seattle flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday at midday flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from Heathrow to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Heathrow to Seattle is currently £316 while a return flight costs £515. Price data was last updated on 14 April 2024.

Currently, December is the cheapest month in which you can book a flight from London Heathrow Airport to Seattle (average of £576). Flying from London Heathrow Airport to Seattle in July is currently the most expensive (average of £801). 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.

January

£491

February

£478

March

£509

April

£521

May

£545

June

£612

July

£645

August

£614

September

£553

October

£526

November

£487

December

£464

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 20 April 2024.
Get a feel of what it's like to fly with SWISS, Iberia and American Airlines from London to Seattle by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very Good
11,094 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.5

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very Good
11,094 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.5

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

KLM
7.9
Good
1,641 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.5

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

SWISS
7.8
Good
2,081 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.5

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Finnair
7.8
Good
1,390 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.5

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Virgin Atlantic
7.7
Good
751 reviews
Delta
8.1
Very Good
11,094 reviews
Check prices

Entertainment

8.0

Boarding

8.2

Food

7.5

Comfort

7.9

Overall

8.1

Crew

8.6

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Related info for your journey

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

  • What airport do you fly into for flights to Seattle from London Heathrow?

    If you book a flight to Seattle from London Heathrow, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 21 flights from London Heathrow to Seattle/Tacoma Intl per day from 14 different airlines.

  • Can I find flights from London Heathrow Airport to Seattle for under £500 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Seattle for under £500. The cheapest flight booked recently is on Multiple Airlines for just £481, but on average you can expect to pay £506.

  • Are there nonstop flights from London Heathrow Airport to Seattle for under £600 on Cheapflights?

    Cheapflights has at least 20 direct flights from London Heathrow Airport to Seattle under £600. A good price for a nonstop flight from London Heathrow Airport to Seattle is less than £558.

  • Are there last-minute flights available from London Heathrow Airport to Seattle for under £600?

    There are currently 20+ open flights from London Heathrow Airport to Seattle within the next 7 days for less than £600.

  • What are the cheapest airlines flying from London Heathrow Airport to Seattle round-trip?

    According to our current data, Icelandair (£488), Lufthansa (£498), and Virgin Atlantic (£517) offers the cheapest pricing from London Heathrow Airport to Seattle. Icelandair is priced at 9% lower than the current average price of a flight leaving 3 months from now.

  • What are the most popular airlines that fly from London Heathrow Airport to Seattle?

    When booking a flight from London Heathrow Airport to Seattle, 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 London Heathrow Airport to Seattle?

    Consider Aeromexico (85%), Singapore Airlines (85%) or Air France (84%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Seattle.

  • What are the cheapest flights from London Heathrow Airport to Seattle?

    The cheapest flight price from London Heathrow Airport to Seattle is £494. On average you can expect to pay £1,754. The most popular route, (London Heathrow - Seattle/Tacoma Intl), can usually be booked for £489.

  • What does LHR to SEA mean?

    This is defined as London Heathrow Airport (LHR) and Seattle/Tacoma Intl Airport (SEA). Codes like Seattle/Tacoma Intl Airport are often used to just call airports uniquely.

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

    The amount of baggage you can bring on your Heathrow to Seattle 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 Heathrow to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Seattle 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 Heathrow to Seattle that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow to Seattle 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 Heathrow to Seattle that allow pets onboard?

    Many airlines flying from Heathrow to Seattle 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 Heathrow to Seattle?

    Yes, you can often find last-minute deals on Heathrow to Seattle 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 London Heathrow Airport to Seattle flight deals updated?

    The London Heathrow Airport to Seattle flight deals you see on this page were last updated on 19/4.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Heathrow to Seattle on these airlines
Choose from the following airlines for your flight from Heathrow to Seattle. Flights are based on user searches made on Cheapflights and were last updated on 20 April 2024.

Virgin Atlantic flights from London Heathrow to Seattle/Tacoma Intl
British Airways flights from London Heathrow to Seattle/Tacoma Intl
Finnair flights from London Heathrow to Seattle/Tacoma Intl

Top 10 airlines flying from Heathrow to Seattle

Discover the top 10 airlines that operate flights from Heathrow to Seattle. 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 899,432 searches. Data last updated 20 April 2024.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£272Average£601FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Virgin AtlanticCheapest£394Average£567FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£422Average£571FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
British AirwaysCheapest£424Average£569FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£437Average£514FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£443Average£619FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£448Average£584FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£451Average£615FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£452Average£520FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£455Average£607FlexibilityNo cancel feeOn-time76%
Search Finnair flights
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Search flights from Heathrow to Seattle by cabin class

Find flights from Heathrow to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy class

Hourly flight availability from Heathrow to Seattle

Find hourly flight availability from Heathrow to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 20 April 2024.
1%of flight departuresEarly morningMidnight to 6 am
51%of flight departuresMorning6 am to noon
48%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
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Weekly flight availability from Heathrow to Seattle

Explore weekly flight availability from Heathrow to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 20 April 2024.
Monday20daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday25daily flights
Sunday20daily flights

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

Deals for Heathrow to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Seattle?

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Can Cheapflights find flights from Heathrow to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for Heathrow to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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