AirHint found the following cheapest return flights from Chicago (MDW) to San Salvador (SAL) in June 2025 (see full year).

Return flights

18 Jun - 25 Jun	Frontier Airlines
25 Jun - 02 Jul	Frontier Airlines
26 Jun - 03 Jul	Frontier Airlines
24 Jun - 01 Jul	Porter Airlines (Canada) Ltd
24 Jun - 02 Jul	Aeromexico
21 Jun - 28 Jun	Aeromexico

Also check the deals for one-way flights from Chicago to San Salvador in June.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chicago to San Salvador in June from $353

Return flights