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

Return flights

16 May - 20 May	Spirit Airlines
20 May - 21 May	Spirit Airlines
16 May - 21 May	Spirit Airlines
09 May - 20 May	Spirit Airlines
09 May - 21 May	Spirit Airlines
09 May - 23 May	Spirit Airlines
20 May - 23 May	Spirit Airlines
16 May - 23 May	Spirit Airlines
09 May - 22 May	Spirit Airlines
20 May - 02 Jun	Spirit Airlines
16 May - 02 Jun	Spirit Airlines
08 May - 21 May	Spirit Airlines
17 May - 02 Jun	Spirit Airlines
20 May - 06 Jun	Spirit Airlines
16 May - 06 Jun	Spirit Airlines
17 May - 06 Jun	Spirit Airlines

Also check the deals for one-way flights from Indianapolis to San Juan in May.

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 Indianapolis to San Juan in May from $270

Return flights