Icelandair
flight
FI 631:
Keflavik, Reykjavik - Boston Logan
Keflavik, Reykjavik - Boston Logan
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Flights:
Icelandair FI631
Valid until 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Effective 2026-03-08 through 2026-03-28
Mon
-
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Effective 2026-03-09 through 2026-03-23
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 5:50, non-stop
Boeing 757-200 (75W)
Boeing 757-200 (75W)
Direct Flights:
Icelandair FI631
Effective from 2026-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Effective 2026-03-29 through 2026-04-05
Mon
-
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:40, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Operates only on 2026-03-30
Mon
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 5:40, non-stop
Boeing 757-200 (75W)
Boeing 757-200 (75W)
Direct Flights:
Icelandair FI631
Effective 2026-04-06 through 2026-04-12
Mon
Tue
-
-
Wed
Thu
Fri
Sat
Sun
Duration: 5:40, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Effective 2026-04-07 through 2026-04-13
Mon
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 5:40, non-stop
Boeing 757-200 (75W)
Boeing 757-200 (75W)
Direct Flights:
Icelandair FI631
Effective 2026-04-14 through 2026-04-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:40, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Operates only on 2026-04-21
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 5:40, non-stop
Boeing 757-200 (75W)
Boeing 757-200 (75W)
Direct Flights:
Icelandair FI631
Effective 2026-04-22 through 2026-05-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:40, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Direct Flights:
Icelandair FI631
Operates only on 2026-05-05
Mon
-
-
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 5:40, non-stop
Boeing 757-200 (75W)
Boeing 757-200 (75W)
Direct Flights:
Icelandair FI631
Effective 2026-05-06 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:40, non-stop
Boeing 767 (76W)
Boeing 767 (76W)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here KEF-BOS
- FI 631 is an international flight departing from Keflavik, Reykjavik airport, Iceland (KEF) and arriving at Boston Logan airport, United States (BOS).
- The flight distance is 2406 miles, or 3872 km.
- The timezone of the departure airport is UTC+0 , and the timezone of the arrival airport is UTC-5 . 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 5:40 and 5:50.