AirHint found the following cheapest one-way flights from Washington (IAD) to Zurich (ZRH) in May 2026 (see full year).
One-Way flights
| 06 May | Icelandair | ||
| 13 May | TAP | ||
| 17 May | TAP | ||
| 25 May | TAP | ||
| 06 May | SWISS | direct | |
| 13 May | United | direct | |
| 17 May | United | direct | |
| 25 May | United | direct |
Also check the deals for return flights from Washington to Zurich in May.
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