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Cheap flights from London Heathrow Airport to Seattle from C$ 678

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 9/9. 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
15 May — 22 May1
1 adult
Wed 15/5
Wed 22/5

The best prices from London Heathrow to Seattle/Tacoma Intl are usually found in November or February, booked 65 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 10 May 2024.

Popular in

July

Cheapest in

November

Average price

C$ 983

Round-trip from

C$ 410
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 16% potential price drop
Search Deals
Average for round-trip flights in May 2024
Search Deals
From London Heathrow to Seattle/Tacoma Intl
Search Deals

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

Flights from London Heathrow Airport to Seattle are generally found to be more expensive on Thursday. This shouldn't discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Seattle.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 44 days in advance, which can save you up to 35% on flights from London Heathrow Airport to Seattle compared to booking the week you need them. Waiting 44 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 924. For sooner than that we have options available in the next 3 days from C$ 1,268.

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

The best pricing can be found in the month of November. Prices to Seattle from London Heathrow Airport average C$ 951. You can even find prices in November for less than C$ 951, as users have found deals to Seattle from as low as C$ 524. The month of July appears to be one of the more expensive times to travel to Seattle from London Heathrow Airport. Flying in the targeted month can save you up to 30%.

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

When flying from London Heathrow Airport to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 23% versus a flight at noon.

Cheap Lufthansa flights from Heathrow to Seattle

Explore cheap flight options specifically provided by Lufthansa 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 430,164 searches. Data last updated 10 May 2024.
Peruse some of the lowest-priced Lufthansa flights we've found from London to Seattle. Make sure to check back often as deals are often changing.
Tue 29/1011:10 a.m.LHR - SEA
1 stop13h 55mLufthansa
Tue 12/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 829
Wed 30/106:30 a.m.LHR - SEA
1 stop13h 30mLufthansa
Thu 7/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 832
Mon 4/111:30 p.m.LHR - SEA
2 stops18h 38mLufthansa
Mon 11/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 839
Thu 31/1011:10 a.m.LHR - SEA
1 stop13h 55mLufthansa
Mon 11/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 880
Tue 5/1111:10 a.m.LHR - SEA
1 stop13h 55mLufthansa
Fri 15/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 10/5C$ 881
Wed 30/106:30 a.m.LHR - SEA
1 stop13h 30mLufthansa
Sat 9/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 883
Wed 6/116:30 a.m.LHR - SEA
1 stop13h 30mLufthansa
Fri 15/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 10/5C$ 884
Mon 4/111:30 p.m.LHR - SEA
2 stops18h 38mLufthansa
Sun 10/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 891
Sat 21/96:30 a.m.LHR - SEA
2 stops16h 00mLufthansa
Sat 5/101:30 p.m.SEA - LHR
1 stop14h 15mLufthansa
Deal found 9/5C$ 920

Cheap Austrian Airlines flights from Heathrow to Seattle

Explore cheap flight options specifically provided by Austrian Airlines 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 430,164 searches. Data last updated 10 May 2024.
Browse through some of the cheapest Austrian Airlines flights travelling from London to Seattle. Check back soon if you're not seeing flights that suit your needs.
Mon 4/117:25 p.m.LHR - SEA
2 stops31h 34mAustrian Airlines
Tue 12/116:31 a.m.SEA - LHR
2 stops43h 09mAustrian Airlines
Deal found 9/5C$ 835
Mon 4/1112:05 p.m.LHR - SEA
1 stop16h 05mAustrian Airlines
Sun 10/118:00 a.m.SEA - LHR
1 stop28h 50mAustrian Airlines
Deal found 10/5C$ 877
Tue 18/66:00 a.m.LHR - SEA
2 stops20h 40mAustrian Airlines
Tue 10/98:10 a.m.SEA - LHR
1 stop18h 30mAustrian Airlines
Deal found 10/5C$ 950

Cheap Heathrow to Seattle flights in May & June 2024

Find cheap flight options from Heathrow to Seattle specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 430,164 searches. Prices were last updated on 10 May 2024.
Listed are some of the best fares we've found on flights departing from London to Seattle in 2024. Check back regularly for other flight deals.
Sat 25/54:15 p.m.LHR - SEA
2 stops27h 15mUnited Airlines
Mon 27/58:01 a.m.SEA - LHR
1 stop14h 44mUnited Airlines
Deal found 9/5C$ 847
Thu 16/511:45 a.m.LHR - SEA
1 stop12h 55mDelta
Mon 20/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 9/5C$ 899
Fri 17/59:50 a.m.LHR - SEA
Nonstop9h 45mBritish Airways
Tue 21/57:40 p.m.SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 10/5C$ 903
Thu 16/59:55 a.m.LHR - SEA
1 stop14h 45mKLM
Tue 21/59:10 p.m.SEA - LHR
Nonstop9h 40mKLM
Deal found 9/5C$ 906
Thu 16/512:45 p.m.LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 21/51:30 p.m.SEA - LHR
1 stop12h 30mVirgin Atlantic
Deal found 9/5C$ 912
Thu 16/56:15 a.m.LHR - SEA
1 stop13h 05mVirgin Atlantic
Tue 21/57:45 a.m.SEA - LHR
1 stop15h 20mVirgin Atlantic
Deal found 9/5C$ 917
Fri 17/54:35 p.m.LHR - SEA
1 stop25h 12mDelta
Mon 20/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 10/5C$ 932
Fri 17/54:50 p.m.LHR - SEA
Nonstop10h 30mDelta
Mon 20/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 10/5C$ 936
Thu 13/61:10 p.m.LHR - SEA
1 stop15h 25mIcelandair
Mon 17/611:00 p.m.SEA - LHR
1 stop13h 20mIcelandair
Deal found 10/5C$ 939

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 430,164 searches. Data last updated 10 May 2024.
Listed are some of the best fares we've found on flights departing from London to Seattle in 2024. Check back regularly for other flight deals.
Tue 29/1011:10 a.m.LHR - SEA
1 stop13h 55mLufthansa
Tue 12/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 829
Wed 30/106:30 a.m.LHR - SEA
1 stop13h 30mLufthansa
Mon 11/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 832
Mon 4/117:25 p.m.LHR - SEA
2 stops31h 34mAustrian Airlines
Tue 12/116:31 a.m.SEA - LHR
1 stop20h 44mAustrian Airlines
Deal found 9/5C$ 835
Mon 4/111:30 p.m.LHR - SEA
2 stops18h 38mLufthansa
Wed 13/113:20 p.m.SEA - LHR
1 stop12h 30mLufthansa
Deal found 9/5C$ 839
Sat 25/54:15 p.m.LHR - SEA
1 stop26h 25mUnited Airlines
Mon 27/57:40 a.m.SEA - LHR
1 stop14h 50mUnited Airlines
Deal found 9/5C$ 847
Mon 4/116:20 a.m.LHR - SEA
1 stop14h 00mDelta
Tue 12/113:20 p.m.SEA - LHR
Nonstop9h 25mDelta
Deal found 9/5C$ 848
Mon 4/112:50 p.m.LHR - SEA
Nonstop9h 55mBritish Airways
Tue 12/116:45 p.m.SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 9/5C$ 851
Mon 4/116:20 a.m.LHR - SEA
1 stop14h 00mDelta
Mon 11/1112:35 a.m.SEA - LHR
1 stop22h 30mDelta
Deal found 9/5C$ 858
Tue 26/116:20 a.m.LHR - SEA
1 stop14h 00mDelta
Mon 9/1212:35 a.m.SEA - LHR
1 stop22h 30mDelta
Deal found 10/5C$ 859

Direct flights to Seattle from Heathrow

Discover non-stop flight options from Heathrow to Seattle. 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 430,164 searches. Data last updated 10 May 2024.
For a shorter flight, select one of these non-stop flights from London to Seattle. Select from other flights from London to Seattle by using the search form above.
Mon 4/1111:35 a.m.LHR - SEA
Nonstop9h 55mDelta
Tue 12/116:05 p.m.SEA - LHR
Nonstop9h 35mDelta
Deal found 9/5C$ 851
Mon 16/94:50 p.m.LHR - SEA
Nonstop10h 30mKLM
Mon 23/99:15 p.m.SEA - LHR
Nonstop9h 35mKLM
Deal found 9/5C$ 865
Mon 16/94:50 p.m.LHR - SEA
Nonstop10h 30mKLM
Mon 23/99:15 p.m.SEA - LHR
Nonstop9h 35mKLM
Deal found 9/5C$ 868
Mon 4/112:50 p.m.LHR - SEA
Nonstop9h 55mFinnair
Mon 11/116:45 p.m.SEA - LHR
Nonstop9h 20mFinnair
Deal found 9/5C$ 872
Thu 31/104:35 p.m.LHR - SEA
Nonstop10h 25mKLM
Mon 11/116:05 p.m.SEA - LHR
Nonstop9h 35mKLM
Deal found 9/5C$ 902
Mon 4/112:50 p.m.LHR - SEA
Nonstop9h 55mBritish Airways
Fri 15/116:45 p.m.SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 10/5C$ 903
Tue 17/94:50 p.m.LHR - SEA
Nonstop10h 30mKLM
Fri 27/99:15 p.m.SEA - LHR
Nonstop9h 35mKLM
Deal found 9/5C$ 925
Fri 1/112:50 p.m.LHR - SEA
Nonstop9h 55mBritish Airways
Fri 8/116:45 p.m.SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 9/5C$ 954
Tue 11/612:45 p.m.LHR - SEA
Nonstop9h 55mDelta
Tue 25/69:10 p.m.SEA - LHR
Nonstop9h 40mDelta
Deal found 9/5C$ 983

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 430,164 searches. Data last updated 10 May 2024.
Have a look at some of the last-minute flights available departing from London to Seattle. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 16/511:45 a.m.LHR - SEA
1 stop12h 55mDelta
Mon 20/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 9/5C$ 899
Fri 17/59:50 a.m.LHR - SEA
Nonstop9h 45mBritish Airways
Tue 21/57:40 p.m.SEA - LHR
Nonstop9h 20mBritish Airways
Deal found 10/5C$ 903
Thu 16/59:55 a.m.LHR - SEA
1 stop14h 45mKLM
Tue 21/59:10 p.m.SEA - LHR
Nonstop9h 40mKLM
Deal found 9/5C$ 906
Thu 16/512:45 p.m.LHR - SEA
Nonstop9h 55mVirgin Atlantic
Tue 21/51:30 p.m.SEA - LHR
1 stop12h 30mVirgin Atlantic
Deal found 9/5C$ 912
Thu 16/56:15 a.m.LHR - SEA
1 stop13h 05mVirgin Atlantic
Tue 21/57:45 a.m.SEA - LHR
1 stop15h 20mVirgin Atlantic
Deal found 9/5C$ 917
Fri 17/54:35 p.m.LHR - SEA
1 stop25h 12mDelta
Mon 20/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 10/5C$ 932
Fri 17/54:50 p.m.LHR - SEA
Nonstop10h 30mDelta
Mon 20/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 10/5C$ 936
Thu 16/59:55 a.m.LHR - SEA
1 stop14h 45mDelta
Wed 29/57:45 a.m.SEA - LHR
1 stop15h 20mDelta
Deal found 8/5C$ 957
Fri 17/56:30 a.m.LHR - SEA
2 stops22h 10mDelta
Wed 29/512:40 a.m.SEA - LHR
1 stop22h 35mDelta
Deal found 10/5C$ 965

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 430,164 searches. Data last updated 10 May 2024.
Users in need of a one-way flight from London to Seattle can choose from these deals. For those needing a return trip from London, there is a search form available above.
Mon 9/96:45 a.m.LHR - SEA
3 stops21h 36mMultiple Airlines
Deal found 9/5C$ 678
Sun 8/96:45 a.m.LHR - SEA
3 stops21h 36mMultiple Airlines
Deal found 9/5C$ 716
Mon 4/112:50 p.m.LHR - SEA
2 stops33h 41mWestJet
Deal found 10/5C$ 765
Mon 20/56:30 a.m.LHR - SEA
2 stops21h 04mMultiple Airlines
Deal found 10/5C$ 768
Tue 10/97:40 a.m.LHR - SEA
3 stops20h 41mMultiple Airlines
Deal found 9/5C$ 773
Thu 16/52:10 p.m.LHR - SEA
2 stops52h 20mWestJet
Deal found 9/5C$ 777
Sun 3/112:50 p.m.LHR - SEA
2 stops57h 41mWestJet
Deal found 9/5C$ 864
Sat 5/102:10 p.m.LHR - SEA
2 stops32h 38mWestJet
Deal found 9/5C$ 865
Sun 8/99:25 p.m.LHR - SEA
2 stops23h 31mMultiple Airlines
Deal found 9/5C$ 885

Find flights from Heathrow to Seattle within your budget

Customize 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 430,164 searches. Data last updated 10 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 829 - C$ 939

Route

Depart

Return

Price

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Tue 29/10

1 stop13h 55m

Seattle/Tacoma Intl

Wed 13/11

1 stop12h 30m

C$ 829

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 4/11

2 stops31h 34m

Seattle/Tacoma Intl

Tue 12/11

2 stops43h 09m

C$ 835

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sat 25/5

2 stops27h 15m

Seattle/Tacoma Intl

Mon 27/5

1 stop14h 44m

C$ 847

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 4/11

1 stop14h 00m

Seattle/Tacoma Intl

Tue 12/11

Nonstop9h 25m

C$ 848

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 16/9

Nonstop10h 30m

Seattle/Tacoma Intl

Mon 23/9

1 stop12h 25m

C$ 862

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Mon 4/11

Nonstop9h 55m

Seattle/Tacoma Intl

Mon 11/11

1 stop14h 30m

C$ 872

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sat 2/11

Nonstop9h 55m

Seattle/Tacoma Intl

Wed 13/11

Nonstop9h 20m

C$ 902

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Sat 21/9

2 stops16h 00m

Seattle/Tacoma Intl

Sat 5/10

1 stop14h 55m

C$ 921

London HeathrowSeattle/Tacoma Intl

LHR - SEA

LHRSEA

London Heathrow

Thu 13/6

1 stop15h 25m

Seattle/Tacoma Intl

Mon 17/6

1 stop13h 20m

C$ 939

Flights are sorted by cheapest first

Deals found on 9/5

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 round-trip flight from Heathrow to Seattle. Price data was last updated on 3 May 2024.
The price you pay for your flight from London Heathrow Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 65 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 round-trip from Heathrow to Seattle. Price data was last updated on 5 May 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their London Heathrow Airport to Seattle flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday mornings 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 C$ 788 while a round-trip flight costs C$ 873. Price data was last updated on 5 May 2024.

Currently, October is the cheapest month in which you can book a flight from London Heathrow Airport to Seattle (average of C$ 299). Flying from London Heathrow Airport to Seattle in March is currently the most expensive (average of C$ 420). 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

C$ 447

February

C$ 462

March

C$ 576

April

C$ 565

May

C$ 433

June

C$ 521

July

C$ 567

August

C$ 574

September

C$ 555

October

C$ 410

November

C$ 429

December

C$ 485

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 10 May 2024.
See what other customers who have flown with Lufthansa, Austrian Airlines and United Airlines from London to Seattle have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,768 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.1
Very good
10,768 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

KLM
7.9
Good
1,589 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

SWISS
7.8
Good
2,003 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Finnair
7.8
Good
1,377 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Austrian Airlines
7.7
Good
1,062 reviews
Delta
8.1
Very good
10,768 reviews
Check prices

Food

7.4

Boarding

8.2

Entertainment

8.0

Crew

8.6

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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?

    Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights from London Heathrow to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from London Heathrow on a regular basis. Booking flights from London Heathrow to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 21 inbound flights from London Heathrow per day.

  • Can I find flights from London Heathrow Airport to Seattle for under C$ 900 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Seattle for under C$ 900. The cheapest flight booked recently is on Lufthansa for just C$ 829, but on average you can expect to pay C$ 861.

  • Are there direct flights from London Heathrow Airport to Seattle for under C$ 900 on Cheapflights?

    Cheapflights has 20 direct flights from London Heathrow Airport to Seattle under C$ 900. A good price for a direct flight from London Heathrow Airport to Seattle is less than C$ 999.

  • Are there last-minute flights available from London Heathrow Airport to Seattle for under C$ 900?

    There are currently 20+ open flights from London Heathrow Airport to Seattle within the next 7 days for less than C$ 900.

  • What days are direct flights available from London Heathrow Airport to Seattle?

    Direct flights are available for this route on the following days: Tuesday.

  • How many flights depart from London Heathrow Airport to Seattle on average per day?

    Per day, 3 flights depart from London Heathrow Airport to Seattle on average.
    Afternoon (Noon - 6pm) - 100% of flight departures

  • How long is the flight from London Heathrow Airport to Seattle?

    A quick flight from London Heathrow Airport to Seattle can take about 13h 55m. Lufthansa provides one of the quickest options available for as low as C$ 829. There are 7744 km between London Heathrow Airport and Seattle. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Currently priced at C$ 829, Lufthansa will fly you from London Heathrow Airport to Seattle and back. In addition to Lufthansa, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Austrian Airlines and United Airlines - these airlines can fly you to your destination from C$ 835 and C$ 847, respectively. These flights start at 14% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from London Heathrow Airport to Seattle one-way?

    The cheapest airlines for a one-way flight from London Heathrow Airport to Seattle are WestJet (C$ 765), Icelandair (C$ 898), and British Airways (C$ 969).

  • What are the most reliable airlines from London Heathrow Airport to Seattle?

    Consider Air France (77%), Delta (77%) or Virgin Atlantic (77%) 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?

    Looking for the cheapest flight from London Heathrow Airport to Seattle? While on average our users pay C$ 1,078, our data indicates the cheapest price to be C$ 912. The most popular route (London Heathrow - Seattle/Tacoma Intl), is priced around C$ 1,147.

  • What does LHR to SEA mean?

    London Heathrow Airport is LHR and Seattle/Tacoma Intl Airport is SEA. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service.

  • 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 vacation 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 10/5.

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Find flights from Heathrow to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 10 May 2024.
1%of flight departuresEarly morningMidnight to 6 am
52%of flight departuresMorning6 am to noon
47%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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 10 May 2024.
Sunday20daily flights
Monday20daily flights
Tuesday24daily flights
Wednesday20daily flights
Thursday20daily flights
Friday20daily flights
Saturday25daily flights

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Fly with Cheapflights

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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?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Heathrow to Seattle for you. Better yet — we are completely free to use.

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

Yes, we can. To see specific flights from Heathrow to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Heathrow today and book when prices fit your budget.

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