Icelandair flights from Washington Dulles (IAD) to Keflavik, Reykjavik (KEF).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Wed-Sat 19:40 Washington Dulles (IAD) 06:35 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 9 (7M9) 5:55 Valid until 2026-01-05
The flight arrives 1 day after departure.
Tue 19:40 Washington Dulles (IAD) 06:35 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Valid until 2026-01-06
The flight arrives 1 day after departure.
Daily 19:40 Washington Dulles (IAD) 06:35 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2026-01-07 through 2026-03-07
The flight arrives 1 day after departure.
Tue-Sun 20:30 Washington Dulles (IAD) 06:25 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 9 (7M9) 5:55 Effective 2026-03-28 through 2026-04-05
The flight arrives 1 day after departure.
Daily 20:30 Washington Dulles (IAD) 06:25 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 9 (7M9) 5:55 Effective 2026-04-06 through 2026-05-17
The flight arrives 1 day after departure.
Mon-Wed,Fri,Sun 20:30 Washington Dulles (IAD) 06:25 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2026-05-18 through 2026-05-25
The flight arrives 1 day after departure.
Tue,Thu,Sat 20:30 Washington Dulles (IAD) 06:25 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 9 (7M9) 5:55 Effective 2026-05-21 through 2026-10-22
The flight arrives 1 day after departure.
Mon,Wed,Fri,Sun 20:30 Washington Dulles (IAD) 06:25 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2026-05-27 through 2026-10-23
The flight arrives 1 day after departure.
Daily 20:40 Washington Dulles (IAD) 06:35 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2026-03-08 through 2026-03-27
The flight arrives 1 day after departure.
Daily 20:40 Washington Dulles (IAD) 06:35 Keflavik, Reykjavik (KEF)
Icelandair FI 644 Non-stop Boeing 737 MAX 8 (7M8) 5:55 Effective from 2026-10-24
The flight arrives 1 day after departure.
Wed,Fri,Sun 23:35 Washington Dulles (IAD) 09:25 Keflavik, Reykjavik (KEF)
Icelandair FI 648 Non-stop Boeing 737 MAX 8 (7M8) 5:50 Effective from 2026-05-06
The flight arrives 1 day after departure.




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Icelandair flights from Washington Dulles (IAD) to Keflavik, Reykjavik (KEF).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Icelandair FI644
19:40
Washington Dulles (IAD)

06:35(+1)
Keflavik, Reykjavik (KEF)
Valid until 2026-01-05
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
19:40
Washington Dulles (IAD)

06:35(+1)
Keflavik, Reykjavik (KEF)
Valid until 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
19:40
Washington Dulles (IAD)

06:35(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-01-07 through 2026-03-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:30
Washington Dulles (IAD)

06:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-03-28 through 2026-04-05
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:30
Washington Dulles (IAD)

06:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-04-06 through 2026-05-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:30
Washington Dulles (IAD)

06:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-05-18 through 2026-05-25
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:30
Washington Dulles (IAD)

06:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-05-21 through 2026-10-22
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
Sun
-
Duration: 5:55, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:30
Washington Dulles (IAD)

06:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-05-27 through 2026-10-23
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:40
Washington Dulles (IAD)

06:35(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-03-08 through 2026-03-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI644
20:40
Washington Dulles (IAD)

06:35(+1)
Keflavik, Reykjavik (KEF)
Effective from 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Icelandair FI648
23:35
Washington Dulles (IAD)

09:25(+1)
Keflavik, Reykjavik (KEF)
Effective from 2026-05-06
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 5:50, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
  • An international route departing from Washington Dulles airport, United States (IAD) and arriving at Keflavik, Reykjavik airport, Iceland (KEF).
  • The flight distance is 2791 miles, or 4491 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 5:50 and 5:55.
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