All airlines flying from Denver (DEN) to Keflavik, Reykjavik (KEF).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2025-11-02 through 2025-12-17
The flight arrives 1 day after departure.
Mon-Wed,Fri-Sun 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2025-12-19 through 2025-12-24
The flight arrives 1 day after departure.
Mon,Tue,Fri-Sun 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2025-12-27 through 2026-01-02
The flight arrives 1 day after departure.
Sat,Sun 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:25 Effective 2026-01-03 through 2026-01-04
The flight arrives 1 day after departure.
Mon-Wed,Fri,Sun 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2026-01-05 through 2026-01-12
The flight arrives 1 day after departure.
Mon,Wed,Fri,Sun 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2026-01-14 through 2026-02-20
The flight arrives 1 day after departure.
Mon,Tue,Thu-Sat 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective from 2026-02-21
The flight arrives 1 day after departure.
Mon,Tue,Thu-Sat 16:40 Denver (DEN) 06:00 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:20 Valid until 2025-05-06
The flight arrives 1 day after departure.
Daily 16:40 Denver (DEN) 06:00 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:20 Effective 2025-05-07 through 2025-09-27
The flight arrives 1 day after departure.
Daily 16:40 Denver (DEN) 06:00 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:20 Effective 2025-09-29 through 2025-10-05
The flight arrives 1 day after departure.
Tue,Thu-Sun 16:40 Denver (DEN) 06:00 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:20 Effective 2025-10-07 through 2025-10-21
The flight arrives 1 day after departure.
Wed-Fri,Sun 16:40 Denver (DEN) 06:00 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:20 Effective 2025-10-22 through 2025-10-26
The flight arrives 1 day after departure.
Mon 16:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 757-200 (75W) 7:25 Operates only on 2025-10-27
The flight arrives 1 day after departure.
Tue-Sat 16:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Icelandair FI 670 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2025-10-28 through 2025-11-01
The flight arrives 1 day after departure.
Tue,Thu-Sun 20:10 Denver (DEN) 09:25 Keflavik, Reykjavik (KEF)
Icelandair FI 672 Non-stop Boeing 757-200 (75W) 7:15 Effective 2025-05-22 through 2025-09-06
The flight arrives 1 day after departure.
Sat 20:10 Denver (DEN) 09:25 Keflavik, Reykjavik (KEF)
Icelandair FI 672 Non-stop Boeing 757-200 (75W) 7:15 Operates only on 2025-09-27
The flight arrives 1 day after departure.
Tue,Sun 20:10 Denver (DEN) 09:25 Keflavik, Reykjavik (KEF)
Icelandair FI 672 Non-stop Boeing 757-200 (75W) 7:15 Effective 2025-10-05 through 2025-10-19
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Tue,Sat 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Air Baltic BT 6273 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2025-11-04 through 2025-12-30
Codeshare flight, operated by Icelandair.(FI 670)
The flight arrives 1 day after departure.
Sat 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Air Baltic BT 6273 Non-stop Boeing 757-200 (75W) 7:25 Operates only on 2026-01-03
Codeshare flight, operated by Icelandair.(FI 670)
The flight arrives 1 day after departure.
Sat 15:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Air Baltic BT 6273 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective from 2026-02-21
Codeshare flight, operated by Icelandair.(FI 670)
The flight arrives 1 day after departure.
Tue,Sat 16:40 Denver (DEN) 06:05 Keflavik, Reykjavik (KEF)
Air Baltic BT 6273 Non-stop Boeing 737 MAX 8 (7M8) 7:25 Effective 2025-10-28 through 2025-11-01
Codeshare flight, operated by Icelandair.(FI 670)
The flight arrives 1 day after departure.




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All airlines flying from Denver (DEN) to Keflavik, Reykjavik (KEF).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-11-02 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-12-19 through 2025-12-24
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-12-27 through 2026-01-02
Mon
Tue
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-01-03 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 7:25, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-01-05 through 2026-01-12
Mon
Tue
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2026-01-14 through 2026-02-20
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI670
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective from 2026-02-21
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:00(+1)
Keflavik, Reykjavik (KEF)
Valid until 2025-05-06
Mon
Tue
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 7:20, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:00(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-05-07 through 2025-09-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:20, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:00(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-09-29 through 2025-10-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:20, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:00(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-10-07 through 2025-10-21
Mon
-
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 7:20, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:00(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-10-22 through 2025-10-26
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 7:20, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Operates only on 2025-10-27
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 7:25, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI670
16:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-10-28 through 2025-11-01
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Icelandair FI672
20:10
Denver (DEN)

09:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-05-22 through 2025-09-06
Mon
-
Tue
Wed
-
Thu
Fri
Sat
Sun
Duration: 7:15, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI672
20:10
Denver (DEN)

09:25(+1)
Keflavik, Reykjavik (KEF)
Operates only on 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:15, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Icelandair FI672
20:10
Denver (DEN)

09:25(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-10-05 through 2025-10-19
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:15, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Direct Codeshare Flights:
Air Baltic BT6273
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-11-04 through 2025-12-30
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Icelandair. (FI 670)
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Air Baltic BT6273
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Icelandair. (FI 670)
Duration: 7:25, non-stop
Boeing 757-200 (75W)
The flight arrives 1 day after departure.
Air Baltic BT6273
15:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective from 2026-02-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Icelandair. (FI 670)
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Air Baltic BT6273
16:40
Denver (DEN)

06:05(+1)
Keflavik, Reykjavik (KEF)
Effective 2025-10-28 through 2025-11-01
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Codeshare flight, operated by Icelandair. (FI 670)
Duration: 7:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
  • An international route departing from Denver airport, United States (DEN) and arriving at Keflavik, Reykjavik airport, Iceland (KEF).
  • The flight distance is 3556 miles, or 5723 km.
  • The timezone of the departure airport is UTC-7 , 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 7:15 and 7:25.
Return (KEF-DEN) flights
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