Cheapest return flights from Detroit to San Juan in January from 173€

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

Return flights

25 Jan - 26 Jan Spirit Airlines
04 Jan - 16 Jan Spirit Airlines
21 Jan - 26 Jan Spirit Airlines
25 Jan - 13 Feb Spirit Airlines
25 Jan - 28 Jan Spirit Airlines
21 Jan - 28 Jan Spirit Airlines
25 Jan - 08 Feb Spirit Airlines
25 Jan - 09 Feb Spirit Airlines
25 Jan - 12 Feb Spirit Airlines
25 Jan - 15 Feb Spirit Airlines
21 Jan - 08 Feb Spirit Airlines
21 Jan - 09 Feb Spirit Airlines
04 Jan - 09 Jan Spirit Airlines
04 Jan - 07 Jan Spirit Airlines
24 Jan - 02 Feb Delta

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

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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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