Cheapest return flights from Detroit to San Juan in October from $163

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

Return flights

01 Oct - 02 Oct Spirit Airlines
21 Oct - 07 Nov Spirit Airlines
21 Oct - 08 Nov Spirit Airlines
21 Oct - 10 Nov Spirit Airlines
24 Oct - 14 Nov Spirit Airlines
24 Oct - 07 Nov Spirit Airlines
24 Oct - 08 Nov Spirit Airlines
24 Oct - 10 Nov Spirit Airlines
23 Oct - 07 Nov Spirit Airlines
23 Oct - 08 Nov Spirit Airlines
23 Oct - 10 Nov Spirit Airlines
13 Oct - 17 Oct Delta direct
01 Oct - 12 Oct Spirit Airlines
01 Oct - 19 Oct Spirit Airlines
01 Oct - 13 Oct Spirit Airlines
01 Oct - 11 Oct Spirit Airlines
01 Oct - 20 Oct Spirit Airlines
01 Oct - 05 Oct Spirit Airlines
01 Oct - 14 Oct Spirit Airlines
01 Oct - 18 Oct Spirit Airlines

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

Skyscanner

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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