NT$14,777 Cheap Flights from London (LHR) to Seattle (SEA)

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Popular airlines from Heathrow Airport (LHR) to Seattle

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Cheap Flights from London to Seattle (LHR-SEA)

Prices were available within the past 7 days and start at NT$14,777 for one-way flights and NT$24,010 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$24,010 Roundtrip, found 5 days ago
NT$24,010
Roundtrip
found 5 days ago
Select Iberia flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$24,010 found 5 days ago
Iberia
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$24,094 Roundtrip, found 5 days ago
NT$24,094
Roundtrip
found 5 days ago
Select Iberia flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$24,094 found 5 days ago
American Airlines
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$24,964 Roundtrip, found 5 days ago
NT$24,964
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$24,964 found 5 days ago
Lufthansa
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,095 Roundtrip, found 5 days ago
NT$25,095
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,095 found 5 days ago
Iberia
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,097 Roundtrip, found 5 days ago
NT$25,097
Roundtrip
found 5 days ago
Select Iberia flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,097 found 5 days ago
American Airlines
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,139 Roundtrip, found 5 days ago
NT$25,139
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,139 found 5 days ago
Finnair
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,220 Roundtrip, found 5 days ago
NT$25,220
Roundtrip
found 5 days ago
Select Finnair flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,220 found 5 days ago
Lufthansa
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,300 Roundtrip, found 5 days ago
NT$25,300
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,300 found 5 days ago
British Airways
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,507 Roundtrip, found 5 days ago
NT$25,507
Roundtrip
found 5 days ago
Select British Airways flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,507 found 5 days ago
British Airways
Thu, Feb 5 - Fri, Mar 20
LHR
London
SEA
Seattle
NT$25,682 Roundtrip, found 5 days ago
NT$25,682
Roundtrip
found 5 days ago
Select British Airways flight, departing Thu, Feb 5 from London to Seattle, returning Fri, Mar 20, priced at NT$25,682 found 5 days ago
Flights from London (LHR) to Seattle (SEA)
Origin airport
Heathrow
Destination airport
Seattle - Tacoma Intl.
Roundtrip price
NT$24,010
Distance
7657 km
Average flight time
2 hours 12 mins

London to Seattle Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from London to Seattle will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Seattle.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with LHR to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind London for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SEA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Heathrow Airport to Sea-Tac Airport?
Start packing your bags, because round-trip journeys from LHR to Seattle - Tacoma Intl. Airport (SEA) start from NT$24,010. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book now to secure the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Heathrow Airport (LHR) to Sea-Tac Airport?
Most flights can be canceled online, but whether you incur a fee depends on your airline. If you do have to cancel your trip, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Heathrow Airport to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for London Heathrow to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Heathrow Airport (LHR) to Seattle - Tacoma Intl. Airport (SEA)?
With around 7,700 kilometers separating LHR and Seattle - Tacoma Intl. Airport (SEA), your flight will be a long one. Pack wisely to make your time on board more comfortable. Little things like an extra pair of socks and a good neck pillow can make a big difference.
Which airlines fly direct from Heathrow Airport to Sea-Tac Airport?
Getting from London Heathrow to Sea-Tac Airport is easy when you have a good range of airlines to choose from. Here are a few of the best:

  • Virgin Atlantic - (VS) with 30 monthly flights
  • American Airlines - (AA) with 30 monthly flights
  • British Airways - (BA) with 30 monthly flights
  • Delta Air Lines - (DL) with 17 monthly flights

Are Heathrow Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes score a bargain, with some of the cheapest airfares from London Heathrow to SEA surfacing a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals continuously — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines advertise prices that far in advance.

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