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

Return flights

16 Mar - 23 Mar	Avianca
12 Mar - 19 Mar	Avianca
17 Mar - 24 Mar	Avianca
18 Mar - 25 Mar	Avianca
27 Mar - 04 Apr	Avianca
27 Mar - 03 Apr	Avianca
28 Mar - 04 Apr	Avianca
17 Mar - 08 Apr	Avianca
12 Mar - 22 Mar	Avianca
31 Mar - 07 Apr	Avianca
05 Mar - 09 Mar	Sky Airline
04 Mar - 08 Mar	Sky Airline
08 Mar - 24 Mar	Sky Airline
28 Mar - 11 Apr	Sky Airline
13 Mar - 18 Mar	Avianca
30 Mar - 10 Apr	LATAM Airlines Group
29 Mar - 06 Apr	Avianca
13 Mar - 20 Mar	Avianca
26 Mar - 01 Apr	Avianca
27 Mar - 02 Apr	Avianca

Also check the deals for one-way flights from Cancun to Buenos Aires 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 Cancun to Buenos Aires in March from 521€

Return flights