AirHint found the following cheapest return flights from Washington (IAD) to Cancun (CUN) in October 2026 (see full year).
Return flights
| 11 Oct - 16 Oct | Avianca | ||
| 11 Oct - 16 Oct | United | direct | |
| 15 Oct - 22 Oct | Avianca | ||
| 20 Oct - 25 Oct | United | direct | |
| 10 Oct - 17 Oct | Avianca |
Also check the deals for one-way flights from Washington to Cancun in October.
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