AirHint found the following cheapest return flights from Ontario (ONT) to San Salvador (SAL) in September 2025 (see full year).

Return flights

02 Sep - 30 Sep	Avianca	direct
06 Sep - 16 Sep	Avianca	direct
10 Sep - 24 Sep	United
03 Sep - 17 Sep	United
11 Sep - 25 Sep	United
15 Sep - 29 Sep	United
18 Sep - 02 Oct	United
22 Sep - 06 Oct	United
24 Sep - 08 Oct	United
03 Sep - 10 Sep	United
23 Sep - 07 Oct	United
30 Sep - 14 Oct	United
21 Sep - 05 Oct	United
19 Sep - 03 Oct	United
26 Sep - 10 Oct	United
27 Sep - 11 Oct	United
20 Sep - 04 Oct	United
05 Sep - 19 Sep	United
14 Sep - 28 Sep	United

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

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.

Book a cheap hotel in San Salvador

Cheap car rent in San Salvador

Cheapest return flights from Ontario to San Salvador in September from 293€

Return flights