Cheapest return IND–SJU flights, October

AirHint found the following cheapest return flights from Indianapolis (IND) to San Juan (SJU) in October 2026 (see full year).

Return flights

01 Oct - 13 Oct Spirit Airlines
09 Oct - 13 Oct United
01 Oct - 05 Oct Allegiant Air
08 Oct - 13 Oct Spirit Airlines
08 Oct - 11 Oct Southwest Airlines
08 Oct - 12 Oct Southwest Airlines
09 Oct - 12 Oct Southwest Airlines
01 Oct - 11 Oct Spirit Airlines
01 Oct - 12 Oct Spirit Airlines
09 Oct - 11 Oct Spirit Airlines

Also check the deals for one-way flights from Indianapolis 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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