AirHint found the following cheapest one-way flights from Detroit (DTW) to San Juan (SJU) in November 2025 (see full year).

One-Way flights

17 Nov	Spirit Airlines	direct
08 Nov	Spirit Airlines	direct
07 Nov	Spirit Airlines	direct
14 Nov	Spirit Airlines	direct
03 Nov	Delta	direct
04 Nov	Spirit Airlines
01 Nov	Spirit Airlines
13 Nov	Spirit Airlines
06 Nov	Spirit Airlines
11 Nov	Spirit Airlines

Also check the deals for return flights from Detroit to San Juan in November.

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 one-way flights from Detroit to San Juan in November from $70

One-Way flights