Finnair flight AY 3889: Chicago O'Hare - London Heathrow

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 17:40 Chicago O'Hare (ORD) 3 07:20 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:40 Effective 2026-03-28 through 2026-10-23
Codeshare flight, operated by American Airlines.(AA 86Z)
The flight arrives 1 day after departure.
Daily 18:25 Chicago O'Hare (ORD) 3 08:15 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:50 Effective 2026-01-06 through 2026-01-25
Codeshare flight, operated by American Airlines.(AA 86)
The flight arrives 1 day after departure.
Daily 18:25 Chicago O'Hare (ORD) 3 08:15 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:50 Effective 2026-02-01 through 2026-02-11
Codeshare flight, operated by American Airlines.(AA 86)
The flight arrives 1 day after departure.
Daily 18:30 Chicago O'Hare (ORD) 3 08:15 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:45 Valid until 2026-01-05
Codeshare flight, operated by American Airlines.(AA 86)
The flight arrives 1 day after departure.
Daily 18:35 Chicago O'Hare (ORD) 3 08:15 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:40 Effective 2026-02-12 through 2026-03-07
Codeshare flight, operated by American Airlines.(AA 86)
The flight arrives 1 day after departure.
Mon-Sat 18:45 Chicago O'Hare (ORD) 3 08:35 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:50 Effective 2026-01-26 through 2026-01-31
Codeshare flight, operated by American Airlines.(AA 86)
The flight arrives 1 day after departure.
Daily 19:45 Chicago O'Hare (ORD) 3 08:35 London Heathrow (LHR) 3
AY 3889 Non-stop Boeing 787-9 (789) 7:50 Effective 2026-03-08 through 2026-03-27
Codeshare flight, operated by American Airlines.(AA 86)
The flight arrives 1 day after departure.


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Finnair flight AY 3889:
Chicago O'Hare - London Heathrow
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Finnair AY3889
17:40
Chicago O'Hare (ORD) 3

07:20(+1)
London Heathrow (LHR) 3
Effective 2026-03-28 through 2026-10-23
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines.(AA 86Z)
Duration: 7:40, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3889
18:25
Chicago O'Hare (ORD) 3

08:15(+1)
London Heathrow (LHR) 3
Effective 2026-01-06 through 2026-01-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 86)
Duration: 7:50, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3889
18:25
Chicago O'Hare (ORD) 3

08:15(+1)
London Heathrow (LHR) 3
Effective 2026-02-01 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 86)
Duration: 7:50, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3889
18:30
Chicago O'Hare (ORD) 3

08:15(+1)
London Heathrow (LHR) 3
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 86)
Duration: 7:45, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3889
18:35
Chicago O'Hare (ORD) 3

08:15(+1)
London Heathrow (LHR) 3
Effective 2026-02-12 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 86)
Duration: 7:40, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3889
18:45
Chicago O'Hare (ORD) 3

08:35(+1)
London Heathrow (LHR) 3
Effective 2026-01-26 through 2026-01-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 86)
Duration: 7:50, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3889
19:45
Chicago O'Hare (ORD) 3

08:35(+1)
London Heathrow (LHR) 3
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 86)
Duration: 7:50, non-stop
Boeing 787-9 (789)
The flight arrives 1 day after departure.
  • AY 3889 is an international flight departing from Chicago O'Hare airport, United States (ORD) and arriving at London Heathrow airport, United Kingdom (LHR).
  • The flight distance is 3940 miles, or 6340 km.
  • The timezone of the departure airport is UTC-6 , 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 7:40 and 7:50.
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