Cheapest return flights from Chicago to San Salvador in March from $400

AirHint found the following cheapest return flights from Chicago (MDW) to San Salvador (SAL) in March 2026 (see full year).

Return flights

03 Mar - 10 Mar Delta
11 Mar - 19 Mar Delta
28 Mar - 04 Apr Frontier Airlines
18 Mar - 29 Mar Frontier Airlines
14 Mar - 20 Mar Frontier Airlines
26 Mar - 02 Apr Frontier Airlines
06 Mar - 08 Mar Frontier Airlines
17 Mar - 21 Mar Frontier Airlines
27 Mar - 30 Mar Frontier Airlines
21 Mar - 28 Mar Delta
31 Mar - 04 Apr Delta

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

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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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