AirHint found the following cheapest return flights from San Francisco (SFO) to San Salvador (SAL) in May 2026 (see full year).

Return flights

26 May - 03 Jun	Avianca	direct
01 May - 11 May	Avianca	direct
02 May - 11 May	Avianca	direct
01 May - 10 May	Avianca	direct
22 May - 14 Jun	Avianca	direct
14 May - 17 May	Avianca	direct
08 May - 23 May	Avianca	direct
05 May - 19 May	Avianca	direct
03 May - 19 May	Avianca	direct
04 May - 19 May	Avianca	direct
10 May - 19 May	Avianca	direct
14 May - 20 May	Avianca	direct
31 May - 14 Jun	Avianca	direct
01 May - 07 Jun	Avianca	direct

Also check the deals for one-way flights from San Francisco to San Salvador in May.

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 San Francisco to San Salvador in May from $359

Return flights