Cheapest return flights from Washington to Cancun in December from $427

Best time to book flights for Washington (IAD) to Cancun (CUN) flights at AirHint

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

Return flights

31 Dec - 08 Jan Aeromexico
12 Dec - 24 Dec Delta
14 Dec - 24 Dec Delta
12 Dec - 24 Dec United direct
14 Dec - 31 Dec Delta
19 Dec - 26 Dec Volaris El Salvador
28 Dec - 30 Dec Aeromexico
20 Dec - 27 Dec Volaris El Salvador
26 Dec - 28 Dec Aeromexico
28 Dec - 01 Jan Volaris El Salvador
25 Dec - 03 Jan Aeromexico
19 Dec - 26 Dec United direct
30 Dec - 04 Jan Aeromexico
25 Dec - 03 Jan United direct

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

Skyscanner

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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