Cheapest return flights from St. Thomas to San Juan in May from 218€

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

Return flights

02 May - 14 May Spirit Airlines
02 May - 15 May Spirit Airlines
29 May - 29 May jetBlue direct
02 May - 07 May Spirit Airlines
10 May - 14 May Spirit Airlines
10 May - 15 May Spirit Airlines
17 May - 28 May Spirit Airlines
10 May - 28 May Spirit Airlines
02 May - 08 May Spirit Airlines
02 May - 22 May Spirit Airlines
17 May - 06 Jun Spirit Airlines
17 May - 04 Jun Spirit Airlines
29 May - 06 Jun Spirit Airlines
31 May - 06 Jun Spirit Airlines
17 May - 05 Jun Spirit Airlines
24 May - 06 Jun Spirit Airlines
25 May - 06 Jun Spirit Airlines
29 May - 04 Jun Spirit Airlines
29 May - 11 Jun Spirit Airlines
29 May - 13 Jun Spirit Airlines

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

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