AirHint found the following cheapest one-way flights from Washington (IAD) to Lima (LIM) in October 2025 (see full year).
One-Way flights
| 22 Oct | Avianca | ||
| 26 Oct | Avianca | ||
| 24 Oct | Avianca | ||
| 27 Oct | Copa | ||
| 28 Oct | Copa | ||
| 29 Oct | Copa | ||
| 30 Oct | Copa | ||
| 31 Oct | Copa | ||
| 23 Oct | United |
Also check the deals for return flights from Washington to Lima in October.
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