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

Return flights

30 Mar - 02 Apr	jetBlue
03 Mar - 10 Mar	Frontier Airlines
03 Mar - 11 Mar	Frontier Airlines
04 Mar - 12 Mar	jetBlue
02 Mar - 09 Mar	jetBlue
02 Mar - 10 Mar	jetBlue
04 Mar - 11 Mar	jetBlue
31 Mar - 08 Apr	Air Canada
16 Mar - 24 Mar	jetBlue
24 Mar - 31 Mar	jetBlue
24 Mar - 01 Apr	jetBlue
30 Mar - 07 Apr	Air Canada
31 Mar - 07 Apr	Air Canada
10 Mar - 17 Mar	jetBlue
17 Mar - 24 Mar	jetBlue
29 Mar - 01 Apr	Air Canada
25 Mar - 02 Apr	Air Canada
26 Mar - 02 Apr	Air Canada
28 Mar - 01 Apr	Air Canada
25 Mar - 01 Apr	Air Canada

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

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 March from $317

Return flights