AirHint found the following cheapest return flights from San Juan (SJU) to Rio Negro (MDE) in October 2025 (see full year).

Return flights

16 Oct - 18 Oct	Avianca	direct
24 Oct - 31 Oct	Copa
22 Oct - 29 Oct	Copa
20 Oct - 23 Oct	Copa
19 Oct - 25 Oct	Avianca	direct
21 Oct - 25 Oct	Avianca
19 Oct - 22 Oct	Avianca
31 Oct - 07 Nov	Copa
18 Oct - 25 Oct	Avianca
17 Oct - 20 Oct	Avianca
29 Oct - 04 Nov	Avianca
18 Oct - 25 Oct	Avianca	direct
28 Oct - 01 Nov	Avianca
31 Oct - 03 Nov	Copa
28 Oct - 16 Nov	Spirit Airlines
26 Oct - 16 Nov	Spirit Airlines
27 Oct - 16 Nov	Spirit Airlines
23 Oct - 09 Nov	Spirit Airlines
28 Oct - 09 Nov	Spirit Airlines
26 Oct - 09 Nov	Spirit Airlines

Also check the deals for one-way flights from San Juan to Rio Negro in October.

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 San Juan to Rio Negro in October from 140€

Return flights