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

Return flights

11 Oct - 20 Oct	Copa
11 Oct - 19 Oct	Copa
28 Oct - 04 Nov	Copa
30 Oct - 04 Nov	Copa
31 Oct - 04 Nov	Copa
31 Oct - 03 Nov	Copa
28 Oct - 04 Nov	Avianca	direct
30 Oct - 04 Nov	Avianca	direct
30 Oct - 03 Nov	Avianca	direct
09 Oct - 14 Oct	Avianca
04 Oct - 13 Oct	jetBlue	direct
10 Oct - 22 Oct	Avianca	direct
13 Oct - 22 Oct	Avianca
06 Oct - 12 Oct	Avianca
09 Oct - 21 Oct	Spirit Airlines
18 Oct - 03 Nov	Spirit Airlines
13 Oct - 16 Oct	Avianca
11 Oct - 13 Oct	Avianca	direct
18 Oct - 01 Nov	Spirit Airlines
29 Oct - 03 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 $254

Return flights