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

Return flights

10 Jun - 16 Jun	Spirit Airlines
24 Jun - 26 Jun	Spirit Airlines
15 Jun - 26 Jun	Spirit Airlines
05 Jun - 11 Jun	Spirit Airlines
15 Jun - 19 Jun	Spirit Airlines
05 Jun - 05 Jun	Spirit Airlines
05 Jun - 26 Jun	Spirit Airlines
29 Jun - 07 Jul	Spirit Airlines
24 Jun - 07 Jul	Spirit Airlines
05 Jun - 19 Jun	Spirit Airlines
24 Jun - 26 Jun	Delta	direct
29 Jun - 09 Jul	Delta	direct
15 Jun - 19 Jun	Delta	direct

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

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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Cheapest return flights from Detroit to San Juan in June from 220€

Return flights