Cheapest return IAD–CUN flights, October

AirHint found the following cheapest return flights from Washington (IAD) to Cancun (CUN) in October 2026 (see full year).

Return flights

25 Oct - 31 Oct United direct
24 Oct - 31 Oct Frontier Airlines
01 Oct - 06 Oct Frontier Airlines
31 Oct - 02 Nov United
11 Oct - 17 Oct United direct
31 Oct - 07 Nov Aeromexico
08 Oct - 12 Oct Aeromexico
10 Oct - 17 Oct United direct
08 Oct - 12 Oct United direct

Also check the deals for one-way flights from Washington to Cancun in October.

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