Cheapest return flights from Detroit to San Juan in May from $182

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

Return flights

11 May - 14 May Frontier Airlines
05 May - 12 May Frontier Airlines
07 May - 14 May Frontier Airlines
03 May - 06 May Spirit Airlines
07 May - 11 May Frontier Airlines
10 May - 12 May Spirit Airlines
01 May - 05 May Spirit Airlines
01 May - 03 May Spirit Airlines
03 May - 14 May Spirit Airlines
03 May - 05 May Spirit Airlines
25 May - 06 Jun Spirit Airlines
21 May - 06 Jun Spirit Airlines
25 May - 15 Jun Spirit Airlines
25 May - 07 Jun Spirit Airlines
21 May - 07 Jun Spirit Airlines

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

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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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