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

Return flights

27 Jan - 05 Feb	Air Canada
07 Jan - 14 Jan	United	direct
27 Jan - 06 Feb	United	direct
28 Jan - 05 Feb	United
28 Jan - 06 Feb	United
28 Jan - 04 Feb	United
09 Jan - 14 Jan	Frontier Airlines
02 Jan - 12 Jan	Frontier Airlines
02 Jan - 07 Jan	Frontier Airlines
04 Jan - 10 Jan	Aeromexico
09 Jan - 13 Jan	United	direct
08 Jan - 13 Jan	United	direct
03 Jan - 10 Jan	Aeromexico
13 Jan - 17 Jan	United	direct
28 Jan - 03 Feb	United
13 Jan - 16 Jan	Delta
28 Jan - 02 Feb	Aeromexico
27 Jan - 05 Feb	United	direct
29 Jan - 02 Feb	Delta
29 Jan - 01 Feb	Aeromexico

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

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 January from 341€

Return flights