AirHint found the following cheapest return flights from Chicago (ORD) to San Salvador (SAL) in May 2026 (see full year).
Return flights
| 13 May - 20 May | Avianca | ||
| 25 May - 31 May | Avianca | ||
| 16 May - 25 May | Avianca | ||
| 22 May - 27 May | Frontier Airlines | ||
| 22 May - 26 May | Frontier Airlines | ||
| 15 May - 18 May | Avianca |
Also check the deals for one-way flights from Chicago to San Salvador in May.
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