Flights Denver → Los Angeles — September 17, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Thursday, September 17, 2026 on the Denver–Los Angeles route: 1 stop itinerary (2 flights) via San Francisco International (SFO), from Denver International (DEN) to Los Angeles International (LAX), first flight Frontier Airlines F93435, departs 6:55 AM, arrives 1:43 PM, total travel time 7h 48m including layovers, flight time 4h 25m (layovers excluded), $146 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable. Price found in an Aviasales search on September 7, 2026 and read by AirSource on September 10, 2026, 21:21 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: Frontier Airlines F92341, from Denver International (DEN) to Los Angeles International (LAX), departs 1:10 PM, arrives 2:39 PM, direct, 2h 29m, $158 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable.