Finnair
flight
AY 5448:
Seattle-Tacoma - London Heathrow
Seattle-Tacoma - London Heathrow
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FLIGHT SCHEDULE
Direct Codeshare Flights:
Finnair AY5448
Valid until 2026-03-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 787-10 (781)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-03-03 through 2026-03-07
Mon
-
-
Tue
Wed
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-
Thu
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-
Fri
Sat
Sun
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-
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-03-04 through 2026-03-05
Mon
-
-
Tue
-
-
Wed
Thu
Fri
-
-
Sat
-
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Sun
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-
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 787-10 (781)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-03-08 through 2026-03-22
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 787-10 (781)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-03-23 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Operates only on 2026-10-24
Mon
-
-
Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:30, non-stop Boeing 787-10 (781)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Operates only on 2026-03-28
Mon
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-
Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:25, non-stop Boeing 787-8 (788)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-03-29 through 2026-04-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:25, non-stop Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-04-22 through 2026-04-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:25, non-stop Boeing 777 (777)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-05-01 through 2026-08-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:25, non-stop Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-09-01 through 2026-09-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:25, non-stop Boeing 787-10 (781)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY5448
Effective 2026-10-01 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by British Airways.
(BA 48)
Duration: 9:25, non-stop Boeing 777-300ER (77W)
The flight arrives 1 day after departure.
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Parallax here SEA-LHR
- AY 5448 is an international flight departing from Seattle-Tacoma airport, United States (SEA) and arriving at London Heathrow airport, United Kingdom (LHR).
- The flight distance is 4783 miles, or 7697 km.
- The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC+0 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
- For direct flights, the flight time varies between 9:25 and 9:30.