Cheapest return flights from Denver to Istanbul in January from $562

AirHint found the following cheapest return flights from Denver (DEN) to Istanbul (IST) in January 2026 (see full year).

Return flights

19 Jan - 27 Jan Icelandair
30 Jan - 03 Feb Icelandair
20 Jan - 27 Jan Frontier Airlines
30 Jan - 05 Feb Frontier Airlines
20 Jan - 03 Feb Frontier Airlines
31 Jan - 06 Feb Frontier Airlines
13 Jan - 27 Jan Frontier Airlines
30 Jan - 07 Feb Icelandair
22 Jan - 30 Jan Frontier Airlines
19 Jan - 29 Jan Icelandair
06 Jan - 29 Jan Frontier Airlines
13 Jan - 20 Jan Frontier Airlines
31 Jan - 04 Feb Air France
30 Jan - 13 Feb Icelandair
13 Jan - 27 Jan Turkish Airlines direct
20 Jan - 27 Jan Turkish Airlines direct
22 Jan - 30 Jan Turkish Airlines direct
20 Jan - 03 Feb Turkish Airlines direct
30 Jan - 03 Feb Turkish Airlines direct
30 Jan - 05 Feb Turkish Airlines direct

Also check the deals for one-way flights from Denver to Istanbul in January.

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