AirHint found the following cheapest return flights from Denver (DEN) to Zurich (ZRH) in May 2026 (see full year).
Return flights
| 19 May - 31 May | Turkish Airlines | ||
| 15 May - 24 May | Alaska Airlines | ||
| 21 May - 11 Jun | Turkish Airlines | ||
| 16 May - 23 May | Icelandair | ||
| 26 May - 02 Jun | Icelandair | ||
| 25 May - 01 Jun | Condor | ||
| 25 May - 12 Jun | WestJet |
Also check the deals for one-way flights from Denver to Zurich in May.
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