Cheapest return flights from Austin to San Juan in October from 302€

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

Return flights

30 Oct - 02 Nov Frontier Airlines
25 Oct - 28 Oct United
31 Oct - 03 Nov Delta
28 Oct - 01 Nov Delta
24 Oct - 13 Nov Spirit Airlines
26 Oct - 13 Nov Spirit Airlines
24 Oct - 09 Nov Spirit Airlines
26 Oct - 09 Nov Spirit Airlines

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

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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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