Cheapest return flights from Detroit to San Juan in January from 141€

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

Return flights

23 Jan - 27 Jan Spirit Airlines
22 Jan - 27 Jan Spirit Airlines
12 Jan - 15 Jan Spirit Airlines
20 Jan - 07 Feb Spirit Airlines
08 Jan - 10 Jan Frontier Airlines
17 Jan - 14 Feb Frontier Airlines
29 Jan - 02 Feb Frontier Airlines
19 Jan - 07 Feb Spirit Airlines
23 Jan - 07 Feb Spirit Airlines
21 Jan - 07 Feb Spirit Airlines
18 Jan - 07 Feb Spirit Airlines
28 Jan - 07 Feb Spirit Airlines
24 Jan - 07 Feb Spirit Airlines
27 Jan - 07 Feb Spirit Airlines
01 Jan - 16 Jan Spirit Airlines
20 Jan - 31 Jan Spirit Airlines
01 Jan - 09 Jan Spirit Airlines
01 Jan - 12 Jan Spirit Airlines
01 Jan - 21 Jan Spirit Airlines
20 Jan - 21 Jan Spirit Airlines

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

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