Cheapest return flights from San Francisco (SFO) to Cancun (CUN), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
28 Sep 05 Oct Frontier Airlines
05 Sep 09 Sep Frontier Airlines
09 Sep 14 Sep Frontier Airlines
24 Sep 09 Oct Frontier Airlines
02 Sep 08 Sep Frontier Airlines
11 Sep 17 Sep Frontier Airlines
27 Sep 02 Oct Southwest Airlines
24 Sep 10 Oct Aeromexico
25 Sep 09 Oct Aeromexico
17 Sep 22 Sep Aeromexico
18 Sep 21 Sep Aeromexico
25 Sep 28 Sep Aeromexico
03 Sep 08 Sep Frontier Airlines
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deals for one-way flights from San Francisco to Cancun in September.

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Updated Jul 17, 2026.

About these fares

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