AirHint found the following cheapest return flights from Washington (DCA) to Cancun (CUN) in October 2025 (see full year).

Return flights

29 Oct - 12 Nov	United
20 Oct - 03 Nov	United
01 Oct - 15 Oct	Delta
16 Oct - 18 Oct	Delta
31 Oct - 06 Nov	Delta
21 Oct - 26 Oct	jetBlue
08 Oct - 22 Oct	United
31 Oct - 14 Nov	United
24 Oct - 07 Nov	United
01 Oct - 05 Oct	Delta
03 Oct - 07 Oct	Delta
03 Oct - 17 Oct	United
17 Oct - 31 Oct	United
06 Oct - 20 Oct	United
22 Oct - 05 Nov	United
07 Oct - 21 Oct	United
28 Oct - 11 Nov	United
21 Oct - 04 Nov	United
23 Oct - 06 Nov	United
18 Oct - 01 Nov	United

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Washington to Cancun in October from 233€

Return flights