Cheapest return flights from Denver to Zurich in September from 471€

AirHint found the following cheapest return flights from Denver (DEN) to Zurich (ZRH) in September 2025 (see full year).

Return flights

09 Sep - 16 Sep Icelandair
05 Sep - 08 Sep Icelandair
30 Sep - 07 Oct Icelandair
24 Sep - 01 Oct Icelandair
14 Sep - 23 Sep Icelandair
03 Sep - 10 Sep Icelandair
12 Sep - 19 Sep Icelandair
18 Sep - 25 Sep Icelandair
03 Sep - 06 Sep Frontier Airlines
27 Sep - 04 Oct Icelandair
06 Sep - 13 Sep Icelandair
21 Sep - 28 Sep United
29 Sep - 04 Oct Icelandair
05 Sep - 08 Sep SWISS direct

Also check the deals for one-way flights from Denver to Zurich in September.

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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