Cheapest return flights from Detroit to San Juan in January from $433

Best time to book flights for Detroit (DTW) to San Juan (SJU) flights at AirHint

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

Return flights

31 Jan - 08 Feb American Airlines
25 Jan - 01 Feb American Airlines
25 Jan - 31 Jan Delta direct
11 Jan - 18 Jan American Airlines
10 Jan - 18 Jan American Airlines
30 Jan - 07 Feb United
30 Jan - 07 Feb Delta direct
11 Jan - 18 Jan Delta direct
25 Jan - 01 Feb Delta direct
10 Jan - 18 Jan Delta direct
31 Jan - 08 Feb Delta direct

Also check the deals for one-way 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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan