Cheapest return flights from Denver (DEN) to Los Angeles (LAX), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
09 Sep 16 Sep Frontier Airlines
Direct Flight
08 Sep 19 Sep Frontier Airlines
Direct Flight
21 Sep 23 Sep Frontier Airlines
Direct Flight
01 Sep 08 Sep Frontier Airlines
Direct Flight
14 Sep 16 Sep Frontier Airlines
Direct Flight
26 Sep 28 Sep Frontier Airlines
Direct Flight
22 Sep 25 Sep Frontier Airlines
Direct Flight
04 Sep 12 Sep Frontier Airlines
Direct Flight
07 Sep 11 Sep Frontier Airlines
Direct Flight
01 Sep 11 Sep Frontier Airlines
Direct Flight
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deals for one-way flights from Denver to Los Angeles in September.

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Updated Jun 2, 2026.

About these fares

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