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

Return flights

16 Mar - 31 Mar	Avianca
03 Mar - 10 Mar	Avianca
18 Mar - 25 Mar	Avianca
11 Mar - 23 Mar	Avianca
17 Mar - 24 Mar	Avianca
29 Mar - 06 Apr	Avianca
30 Mar - 07 Apr	Avianca
22 Mar - 03 Apr	Avianca
16 Mar - 06 Apr	Avianca
29 Mar - 07 Apr	Avianca
25 Mar - 07 Apr	Avianca	direct
15 Mar - 22 Mar	Aeromexico	direct
12 Mar - 19 Mar	Aeromexico	direct
13 Mar - 20 Mar	Aeromexico	direct
16 Mar - 23 Mar	Aeromexico	direct
07 Mar - 15 Mar	Avianca
28 Mar - 10 Apr	Avianca
28 Mar - 06 Apr	Avianca
31 Mar - 07 Apr	Avianca	direct
27 Mar - 05 Apr	Aeromexico	direct

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

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 Mexico City to San Salvador in March from 152€

Return flights