AirHint found the following cheapest return flights from Cancun (CUN) to Rio Negro (MDE) in May 2026 (see full year).

Return flights

17 May - 30 May	Aeromexico
08 May - 11 May	Aeromexico
12 May - 17 May	Aeromexico
11 May - 17 May	Aeromexico
21 May - 28 May	Aeromexico
08 May - 15 May	Aeromexico
29 May - 06 Jun	Aeromexico
04 May - 12 May	Aeromexico
23 May - 30 May	Copa
29 May - 16 Jun	Copa
23 May - 30 May	Avianca	direct
25 May - 03 Jun	Avianca	direct
21 May - 28 May	Avianca	direct
29 May - 06 Jun	Avianca	direct
30 May - 06 Jun	Copa

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

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 Cancun to Rio Negro in May from $331

Return flights