Cheapest return flights from Ontario to San Salvador in March from $335

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

Return flights

23 Mar - 31 Mar American Airlines
07 Mar - 14 Mar Avianca direct
07 Mar - 12 Mar Avianca direct
03 Mar - 12 Mar Avianca direct
10 Mar - 19 Mar Avianca direct
31 Mar - 06 Apr Frontier Airlines
03 Mar - 10 Mar Avianca direct
03 Mar - 14 Mar Avianca direct
07 Mar - 17 Mar Avianca direct
05 Mar - 12 Mar Avianca direct
08 Mar - 13 Mar American Airlines
31 Mar - 07 Apr Frontier Airlines
28 Mar - 04 Apr Avianca
07 Mar - 07 Apr Avianca direct
31 Mar - 07 Apr Avianca direct
26 Mar - 04 Apr Avianca
28 Mar - 03 Apr Avianca
28 Mar - 04 Apr Avianca direct
24 Mar - 07 Apr Avianca direct
26 Mar - 03 Apr Avianca

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

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