Cheapest return flights from Detroit to San Juan in January from 155€

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

Return flights

24 Jan - 31 Jan Frontier Airlines
24 Jan - 29 Jan Frontier Airlines
08 Jan - 12 Jan Frontier Airlines
27 Jan - 02 Feb Frontier Airlines
11 Jan - 15 Jan Frontier Airlines
25 Jan - 28 Jan Frontier Airlines
18 Jan - 21 Jan Frontier Airlines
05 Jan - 10 Jan Frontier Airlines
12 Jan - 21 Jan Frontier Airlines
22 Jan - 26 Jan Frontier Airlines
23 Jan - 27 Jan Spirit Airlines
18 Jan - 04 Feb Spirit Airlines
18 Jan - 06 Feb Spirit Airlines
29 Jan - 10 Feb Spirit Airlines
29 Jan - 06 Feb Spirit Airlines
25 Jan - 04 Feb Spirit Airlines
25 Jan - 10 Feb Spirit Airlines
25 Jan - 06 Feb Spirit Airlines
28 Jan - 04 Feb Spirit Airlines
28 Jan - 10 Feb Spirit Airlines

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

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