
Popular airlines from London City Airport (LCY) to Seattle-Tacoma International Airport (SEA)
- British Airways
British Airways
- Aer Lingus
Aer Lingus
- KLM
KLM
- Swiss International Air Lines
Swiss International Air Lines
- Virgin Atlantic
Virgin Atlantic
- Lufthansa
Lufthansa
- Delta
Delta
- Plan, book, fly with confidence
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Cheap Flights from London (LCY) to Seattle (SEA)
Prices were available within the past 7 days and start at £553 for one-way flights and £521 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Origin airport | London City |
Destination airport | Seattle - Tacoma Intl. |
Airlines serving | Aer Lingus, British Airways, Delta, ITA Airways, Iberia, KLM, Lufthansa, Swiss International Air Lines, Virgin Atlantic |
Return price | £520 |
Distance | 7675 km |
Compare flights from London to Seattle easily and book with confidence
For travelling on business or for pleasure, Expedia makes it easy to book your flights from London to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from London City to Seattle - Tacoma Intl..
To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.
Grab a great deal on your flight from London City (LCY) to Seattle - Tacoma Intl. (SEA)
The easiest way to view the best deals on flights from London to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from London City to Seattle - Tacoma Intl. start at just £521 and range up to £696.
To find an even better deal, try
- being flexible on your dates – midweek flights can be cheaper
- looking for other airports near London and Seattle
- booking your flight during October, the cheapest month on this route
- varying your flight times – early morning and late at night are sometimes cheaper
Why you should book your London to Seattle flight with Expedia!
We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from London City to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.
Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.
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Top Routes from London
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Top Routes to Seattle
- Newark Liberty Intl. Airport to Seattle (EWR - SEA)
- Los Angeles to Seattle (LAX - SEA)
- Entebbe to Seattle (EBB - SEA)
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- Edinburgh to Seattle (EDI - SEA)
- New York to Seattle (JFK - SEA)
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Seattle Paine Field Intl. Airport
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