Cheapest return flights from Denver (DEN) to Keflavik (KEF), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
28 Sep 07 Oct Air Canada
06 Sep 10 Sep Air Canada
10 Sep 17 Sep Air Canada
22 Sep 01 Oct Air Canada
09 Sep 19 Sep Air Canada
09 Sep 15 Sep Air Canada
08 Sep 15 Sep Air Canada
16 Sep 23 Sep United
14 Sep 21 Sep Air Canada
07 Sep 15 Sep Air Canada
10 Sep 24 Sep Lufthansa
17 Sep 23 Oct United
08 Sep 19 Sep Air Canada
25 Sep 03 Oct Air Canada
17 Sep 23 Oct Icelandair
Direct Flight
22 Sep 01 Oct Icelandair
Direct Flight
25 Sep 03 Oct Icelandair
Direct Flight
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Updated Aug 25, 2026.

About these fares

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