Seattle to London Flights
Flights from Seattle (SEA) to London (LON) connect United States and United Kingdom. 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 SEA and LON, LHR, LGW, STN, LTN, LCY. The reverse route is London to Seattle. 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
- Seattle, United States
- Destination
- London, United Kingdom
- Distance
- 7,702 km
- Typical duration
- about 10 to 11 hours
- Origin codes
- SEA
- Destination codes
- LON, LHR, LGW, STN, LTN, LCY
- Primary keyword
- flights from Seattle to London
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Compare live prices and schedules for this route.
Route overview
Seattle to London is a city-pair air route between United States and United Kingdom. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are SEA and LON. Related codes: SEA → LON, LHR, LGW, STN, LTN, LCY.
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
Seattle airports and metro codes: SEA.
London airports and metro codes: LON, LHR, LGW, STN, LTN, LCY.
Alternative routes
Related searches include the reverse route London to Seattle, other destinations from Seattle, and other origins into London.
Frequently asked questions
How long is the flight from Seattle to London?
Direct flights from Seattle to London typically take about 10 to 11 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from Seattle to London?
The great-circle distance between Seattle and London is approximately 7,702 km. Flown distance can be longer depending on airways.
Which airports serve flights from Seattle to London?
Seattle is commonly searched with code SEA (related: SEA). London is commonly searched with code LON (related: LON, LHR, LGW, STN, LTN, LCY).
Are there direct flights from Seattle to London?
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 London to Seattle?
The reverse city pair is London to Seattle. Distance is the same great-circle measure (7,702 km); block time can differ with winds and schedules.
Which countries does the Seattle to London route connect?
This route connects United States (Seattle) with United Kingdom (London).