London to Seattle Flights
Flights from London (LON) to Seattle (SEA) connect United Kingdom and United States. The great-circle distance is approximately 7,702 km, and a typical direct flight takes about 10 to 11 hours. Airports commonly used for this city pair include LON, LHR, LGW, STN, LTN, LCY and SEA. The reverse route is Seattle to London. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.
Route facts
- Origin
- London, United Kingdom
- Destination
- Seattle, United States
- Distance
- 7,702 km
- Typical duration
- about 10 to 11 hours
- Origin codes
- LON, LHR, LGW, STN, LTN, LCY
- Destination codes
- SEA
- Primary keyword
- flights from London to Seattle
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Compare live prices and schedules for this route.
Route overview
London to Seattle is a city-pair air route between United Kingdom and United States. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are LON and SEA. Related codes: LON, LHR, LGW, STN, LTN, LCY → SEA.
Distance
Approximate flight distance: 7,702 km (great-circle). Actual flown distance can be longer depending on airway routing.
Duration
Typical block time for a direct flight is about 10 to 11 hours. Connecting itineraries take longer and depend on layover airports.
Airports
London airports and metro codes: LON, LHR, LGW, STN, LTN, LCY.
Seattle airports and metro codes: SEA.
Alternative routes
Related searches include the reverse route Seattle to London, other destinations from London, and other origins into Seattle.
Frequently asked questions
How long is the flight from London to Seattle?
Direct flights from London to Seattle typically take about 10 to 11 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from London to Seattle?
The great-circle distance between London and Seattle is approximately 7,702 km. Flown distance can be longer depending on airways.
Which airports serve flights from London to Seattle?
London is commonly searched with code LON (related: LON, LHR, LGW, STN, LTN, LCY). Seattle is commonly searched with code SEA (related: SEA).
Are there direct flights from London to Seattle?
Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.
What is the reverse flight route from Seattle to London?
The reverse city pair is Seattle to London. Distance is the same great-circle measure (7,702 km); block time can differ with winds and schedules.
Which countries does the London to Seattle route connect?
This route connects United Kingdom (London) with United States (Seattle).