Denver International (DEN) to Keflavik International (KEF).
| Departure | Return | Price |
|---|---|---|
| 06/28/2026 | 07/07/2026 | $598 |
| 06/29/2026 | 07/07/2026 | $598 |
| 06/29/2026 | 07/08/2026 | $598 |
| 06/30/2026 | 07/07/2026 | $605 |
| 06/30/2026 | 07/08/2026 | $605 |
| 06/30/2026 | 07/09/2026 | $605 |
| 07/04/2026 | 07/09/2026 | $605 |
| 07/05/2026 | 07/14/2026 | $605 |
| 07/06/2026 | 07/14/2026 | $605 |
| 07/06/2026 | 07/15/2026 | $605 |
Based on current fares, July is the cheapest month to fly from Denver to Reykjavik, with average fares around $637 round trip (as low as $605).
May tends to be more expensive, averaging $873.
See the full month-by-month and day-of-week price analysis
Best Time to Fly DEN → KEFDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Denver to Reykjavik is July, with average round-trip fares around $637. Fares in July start as low as $605. The most expensive month is May, averaging $873.
A nonstop flight from Denver to Reykjavik takes approximately 7h.
The cheapest flight from Denver to Reykjavik currently starts at $598 round trip in economy class.
The average round-trip flight price from Denver to Reykjavik is $779 in economy class.
The distance is 3359 miles (5405 km). with a nonstop flight time of about 7h. The lowest fare currently available is $598 departing in June. The average round-trip fare is $779.
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