Cheapest return flights from Denver to Keflavik in July from 635€

AirHint found the following cheapest return flights from Denver (DEN) to Keflavik (KEF) in July 2025 (see full year).

Return flights

31 Jul - 07 Aug United
27 Jul - 03 Aug United
27 Jul - 07 Aug United
28 Jul - 04 Aug Air Canada
31 Jul - 04 Aug United
31 Jul - 04 Aug Icelandair direct
31 Jul - 07 Aug Icelandair direct
30 Jul - 02 Aug Frontier Airlines
29 Jul - 31 Jul Frontier Airlines
27 Jul - 31 Jul Hawaiian Airlines
27 Jul - 07 Aug Icelandair direct
28 Jul - 04 Aug Icelandair direct
29 Jul - 31 Jul Icelandair direct
27 Jul - 31 Jul Icelandair direct

Also check the deals for one-way flights from Denver to Keflavik in July.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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