AirHint found the following cheapest one-way flights from Chicago (ORD) to Amsterdam (AMS) in September 2026 (see full year).
One-Way flights
| 08 Sep | Aer Lingus | ||
| 03 Sep | Lufthansa | ||
| 25 Sep | TAP | ||
| 08 Sep | Delta | direct | |
| 03 Sep | Delta | direct | |
| 04 Sep | Delta | direct | |
| 25 Sep | Delta | direct | |
| 12 Sep | Delta | direct |
Also check the deals for return flights from Chicago to Amsterdam in September.
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