AirHint found the following cheapest return flights from Des Moines (DSM) to San Juan (SJU) in March 2026 (see full year).
Return flights
| 27 Mar - 31 Mar | Allegiant Air | ||
| 03 Mar - 10 Mar | Delta | ||
| 26 Mar - 31 Mar | Allegiant Air | ||
| 02 Mar - 09 Mar | United | ||
| 14 Mar - 18 Mar | Frontier Airlines |
Also check the deals for one-way flights from Des Moines to San Juan in March.
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