AirHint found the following cheapest return flights from Denver (DEN) to San Salvador (SAL) in May 2026 (see full year).
Return flights
| 09 May - 16 May | Frontier Airlines | ||
| 02 May - 07 May | jetBlue | ||
| 29 May - 31 May | jetBlue | ||
| 26 May - 18 Jun | American Airlines |
Also check the deals for one-way flights from Denver to San Salvador in May.
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