$442 Find Cheap Flights from London to Seattle

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Find cheap flights from London to Seattle starting at $442.

Book one-way or return flights from London to Seattle from as little as $442. Choose from the popular airlines below and book your flight today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from London to Seattle? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from London to Seattle. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Find cheap airlines flights from London to Seattle

View airlines operating flights from London to Seattle. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Norse Atlantic Airways

From $229

easyJet

From $361

Norwegian Air Sweden

From $361

Norwegian Air Shuttle ASA

From $362

Jet2.com

From $383

Scandinavian Airlines

From $398

Vueling Airlines

From $405

PLAY Airline

From $410

Ryanair

From $419

ITA Airways

From $425

ANA airlines

Find more flights and airlines

Find cheap flights from London to Seattle by different airports

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from London to Seattle.

Cheapest
LGW
10:45
34h 12m
1 transfer
SEA
12:57
London Gatwick Airport - Seattle-Tacoma International Airport
Tue, May 21Norse Atlantic Airways
$229
LTN
06:00
14h 56m
2 transfer
SEA
12:56
London Luton Airport - Seattle-Tacoma International Airport
Mon, Jun 24easyJet
$361
STN
07:00
37h 56m
2 transfer
SEA
12:56
London Stansted Airport - Seattle-Tacoma International Airport
Sun, May 5Jet2.com
$383
STN
07:00
37h 56m
2 transfer
SEA
12:56
London Stansted Airport - Seattle-Tacoma International Airport
Sun, May 5Jet2.com
$383
Find More Flights

Frequently Asked Questions

When are flight tickets from London (LON) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from London to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from London (LON) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around $1,325.
How long does it take to fly from London (LON) to Seattle (SEA) and what is the distance?
It takes around 9 hours 55 minutes to fly from London (LON) to Seattle (SEA).
What is the transportation method from the main airport to downtown in Seattle?
- The distance from Seattle-Tacoma International Airport to downtown is about 17km. It takes about 30 minutes by taxi.
What are the most popular airlines that fly from London (LON) to Seattle (SEA)?
Airlines with flights from London (LON) to Seattle (SEA): KLM Royal Dutch Airlines, American Airlines, Finnair, Delta Air Lines, Aer Lingus, Aeromexico, Singapore Airlines, Air France, Iberia, British Airways and Virgin Atlantic.

How to find a cheap flight from London to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from London to Seattle. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

London to Seattle Flight Information

Cheapest nonstop flight price	$442
Cheapest round-trip ticket price	$605
Off-season for travel	May
Peak season for travel	October
Flight distance	7,711.56km
Average flight time	9 hours 55 minutes
Popular airline	Finnair