🇺🇸 SEA
Seattle
4936 mi
LHR 🇬🇧
London

Seattle to London Flights

Seattle–Tacoma International Airport London Heathrow Airport 3 airlines

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The Seattle to London route connects Seattle–Tacoma International Airport (SEA) in US with London Heathrow Airport (LHR) in GB. This long-haul flight covers approximately 4936 miles (7944 km) with a typical flight time of 8h 49m. This route is served by 3 airlines: British Airways, Delta Air Lines, VIR. AirportRoutes has tracked 3 unique flight numbers on this route.

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Departure Airport

Seattle–Tacoma International Airport

ICAO Code:
KSEA
IATA Code:
SEA
City:
🇺🇸 Seattle
Country:
US
Elevation:
433 ft

Destination Airport

London Heathrow Airport

ICAO Code:
EGLL
IATA Code:
LHR
City:
🇬🇧 London
Country:
GB
Elevation:
83 ft

3

Operators

3

Tracked Flights

4936

Miles

8h 49m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
British Airways BAW BA
Delta Air Lines DAL DL
Virgin Atlantic VIR VS

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 3 12%
Tuesday 3 12%
Wednesday 4 16%
Thursday 1 4%
Friday 4 16%
Saturday 6 24%
Sunday 4 16%

Pattern Analysis

3 Tracked Flights:
Data Points: 25
API observations used to build this analysis
Weekdays: 15 flights
Weekend: 10 flights
Business Route More active on weekdays

All Flight Routes

3 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
A339 20:10 8:10 PM (Representative)
M T W T F S S
Jun 19, 2026 Active
B77W 20:20 8:20 PM (Representative)
M T W T F S S
Jun 19, 2026 Active
- A339 -
M T W T F S S
Jun 19, 2026 Active
Total Routes: 3
Active Routes: 3
Unique Airlines: 3
Aircraft Types: 3

Spotted Departure Times

Departure Time Operator ICAO IATA
20:10 8:10 PM Virgin Atlantic VIR VS
20:20 8:20 PM British Airways BAW BA

Time Information

Times are shown in the departure airport's local timezone (KSEA - America/Los_Angeles).

Total Departure Times: 2
Time Range:
20:10 - 20:20
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.