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

Return flights

07 Oct - 13 Oct	Copa
31 Oct - 04 Nov	Copa
31 Oct - 03 Nov	Copa
14 Oct - 20 Oct	Copa
23 Oct - 28 Oct	Copa
29 Oct - 04 Nov	Copa
23 Oct - 28 Oct	Avianca	direct
29 Oct - 04 Nov	Avianca	direct
25 Oct - 30 Oct	Avianca
06 Oct - 16 Oct	Spirit Airlines
14 Oct - 20 Oct	Avianca	direct
23 Oct - 26 Oct	Spirit Airlines
06 Oct - 26 Oct	Spirit Airlines
23 Oct - 30 Oct	Spirit Airlines
31 Oct - 04 Nov	Avianca	direct
31 Oct - 03 Nov	Avianca	direct
23 Oct - 04 Nov	Spirit Airlines
18 Oct - 04 Nov	Spirit Airlines
26 Oct - 04 Nov	Spirit Airlines
25 Oct - 04 Nov	Spirit Airlines

Also check the deals for one-way flights from Rio Negro to San Juan 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 Rio Negro to San Juan in October from 208€

Return flights