Flights Los Angeles → Denver — September 23, 2026

One way · Economy · 1 adult · price per person

The cheapest itinerary observed for Wednesday, September 23, 2026 on the Los Angeles–Denver route: 1 stop itinerary (2 flights) via Phoenix Sky Harbor (PHX), from Los Angeles International (LAX) to Denver International (DEN), first flight Frontier Airlines F91062, departs 12:45 PM, arrives 6:15 PM, total travel time 4h 30m including layovers, flight time 3h 25m (layovers excluded), $115 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, 20:48 UTC: it is not guaranteed and is confirmed on Aviasales at booking time. The cheapest direct flight observed: Frontier Airlines F94346, from Los Angeles International (LAX) to Denver International (DEN), departs 2:01 PM, arrives 5:32 PM, direct, 2h 31m, $153 per person. Fare as listed by Aviasales: carry-on bag not included (personal item only), checked bag not included, changes not allowed, non-refundable.