Cheapest one-way flights from Detroit to San Juan in January from $85

AirHint found the following cheapest one-way flights from Detroit (DTW) to San Juan (SJU) in January 2026 (see full year).

One-Way flights

26 Jan Spirit Airlines direct
24 Jan Spirit Airlines direct
07 Jan Spirit Airlines direct
23 Jan Spirit Airlines direct
21 Jan Spirit Airlines
03 Jan Spirit Airlines
14 Jan Spirit Airlines
13 Jan Spirit Airlines
02 Jan Spirit Airlines
10 Jan Spirit Airlines

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

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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