AirHint found the following cheapest return flights from Chicago (ORD) to San Salvador (SAL) in April 2026 (see full year).
Return flights
| 26 Apr - 12 May | Spirit Airlines | ||
| 25 Apr - 09 May | United | ||
| 24 Apr - 26 Apr | Copa | ||
| 04 Apr - 18 Apr | United | ||
| 02 Apr - 06 Apr | Frontier Airlines |
Also check the deals for one-way flights from Chicago to San Salvador in April.
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