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

Return flights

06 Apr - 09 Apr	Air Canada
03 Apr - 07 Apr	Frontier Airlines
02 Apr - 07 Apr	Frontier Airlines
06 Apr - 10 Apr	Frontier Airlines
08 Apr - 11 Apr	Aeromexico
03 Apr - 10 Apr	Frontier Airlines
07 Apr - 11 Apr	Aeromexico
06 Apr - 11 Apr	Volaris El Salvador
03 Apr - 11 Apr	Porter Airlines (Canada) Ltd
24 Apr - 28 Apr	Air Canada
25 Apr - 02 May	Delta
29 Apr - 03 May	United
30 Apr - 03 May	United

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

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 April from 326€

Return flights