Cheapest return flights from Washington to Cancun in May from $240

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 May 2025 (see full year).

Return flights

11 May - 15 May Avianca
31 May - 04 Jun Volaris El Salvador
31 May - 09 Jun Volaris El Salvador
29 May - 02 Jun Volaris El Salvador
17 May - 21 May Volaris El Salvador
27 May - 30 May Volaris El Salvador
30 May - 02 Jun Volaris El Salvador
12 May - 16 May Volaris El Salvador
14 May - 16 May Volaris El Salvador
18 May - 23 May Volaris El Salvador
28 May - 02 Jun Volaris El Salvador
30 May - 04 Jun Volaris El Salvador
11 May - 16 May Volaris El Salvador
16 May - 21 May Volaris El Salvador
10 May - 16 May Volaris El Salvador
24 May - 28 May Volaris El Salvador
30 May - 01 Jun Volaris El Salvador
31 May - 07 Jun Volaris El Salvador
23 May - 01 Jun Volaris El Salvador
28 May - 03 Jun Air Canada

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

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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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