Finnair flight AY 3778: Boston Logan - London Heathrow

Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Daily 19:15 Boston Logan (BOS) B 07:00 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:45 Valid until 2026-02-01
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.
Mon-Thu 19:15 Boston Logan (BOS) B 07:00 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:45 Effective 2026-02-04 through 2026-02-12
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.
Daily 19:15 Boston Logan (BOS) B 07:00 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:45 Effective 2026-02-13 through 2026-03-07
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.
Daily 20:15 Boston Logan (BOS) B 07:00 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:45 Effective from 2026-10-25
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.
Daily 20:20 Boston Logan (BOS) B 07:50 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:30 Effective 2026-03-28 through 2026-10-23
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.
Daily 20:25 Boston Logan (BOS) B 07:00 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:35 Effective 2026-03-08 through 2026-03-27
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.
Sat 20:30 Boston Logan (BOS) B 07:00 London Heathrow (LHR) 3
AY 3778 Non-stop Boeing 777-200 (772) 6:30 Operates only on 2026-10-24
Codeshare flight, operated by American Airlines.(AA 108)
The flight arrives 1 day after departure.


Feedback - Disclaimer - Privacy
FlightMapper.net Flight Search Countries Airlines
LANGUAGES
Finnair flight AY 3778:
Boston Logan - London Heathrow
Select flight date:
FLIGHT SCHEDULE
Direct Codeshare Flights:
Finnair AY3778
19:15
Boston Logan (BOS) B

07:00(+1)
London Heathrow (LHR) 3
Valid until 2026-02-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 108)
Duration: 6:45, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3778
19:15
Boston Logan (BOS) B

07:00(+1)
London Heathrow (LHR) 3
Effective 2026-02-04 through 2026-02-12
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Codeshare flight, operated by American Airlines. (AA 108)
Duration: 6:45, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3778
19:15
Boston Logan (BOS) B

07:00(+1)
London Heathrow (LHR) 3
Effective 2026-02-13 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 108)
Duration: 6:45, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3778
20:15
Boston Logan (BOS) B

07:00(+1)
London Heathrow (LHR) 3
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Codeshare flight, operated by American Airlines. (AA 108)
Duration: 6:45, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3778
20:20
Boston Logan (BOS) B

07:50(+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 108)
Duration: 6:30, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3778
20:25
Boston Logan (BOS) B

07:00(+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 108)
Duration: 6:35, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Finnair AY3778
20:30
Boston Logan (BOS) B

07:00(+1)
London Heathrow (LHR) 3
Operates only on 2026-10-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by American Airlines. (AA 108)
Duration: 6:30, non-stop
Boeing 777-200 (772)
The flight arrives 1 day after departure.
  • AY 3778 is an international flight departing from Boston Logan airport, United States (BOS) and arriving at London Heathrow airport, United Kingdom (LHR).
  • The flight distance is 3254 miles, or 5237 km.
  • The timezone of the departure airport is UTC-5 , 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 6:30 and 6:45.
All Finnair flights
All BOS-LHR flights
Return (LHR-BOS) flights
Feedback     -     Disclaimer     -     Privacy