$114 Cheap Frontier Airlines flights Los Angeles (LAX) to Denver (DEN)

Grab cheap round-trip Frontier Airlines flights from $143 from LAX to DEN by sorting your results from “Price (lowest to highest)” on Expedia. Or look for deals from $114 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to jet away to Denver with Frontier Airlines. You could also find fantastic deals on one-way and return fares in November.

Search for cheap Frontier Airlines flights from Los Angeles Intl. Airport (LAX) to Denver Intl. Airport (DEN) one to three months before your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Frontier Airlines has direct flights from Los Angeles Intl. Airport (LAX) to Denver Intl. Airport (DEN), with 13 weekly departures. Simply apply the “Nonstop” and “Airline” filters while searching on Expedia to find all direct Frontier Airlines flights to DEN.

On average, it takes 2h 31m to travel nonstop from Los Angeles Intl. Airport (LAX) to Denver Intl. Airport (DEN) with Frontier Airlines.

Frontier Airlines has the most flights from Los Angeles Intl. Airport (LAX) to Denver Intl. Airport (DEN) on Saturday. With up to 2 daily departures, you’ll get the most flexibility and choice on this day.

Leaving LAX at 6:30AM UTC-8, the first Frontier Airlines flight to DEN lands at 10:01AM UTC-7. Flying early means you’ll be less likely to encounter cancellations or delays.* Don’t like early starts? The last Frontier Airlines flight from LAX to DEN departs at 6:43PM UTC-8 and touches down at 10:14PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Denver Intl. Airport (DEN) is the primary Denver hub for Frontier Airlines flights from Los Angeles Intl. Airport (LAX).

With a rewarding loyalty program, Frontier Airlines is a top pick for many passengers journeying from LAX to DEN. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Frontier Airlines typically uses Airbus A321neo planes for flights from Los Angeles Intl. Airport (LAX) to Denver Intl. Airport (DEN). This airline also operates the Airbus A320neo on this route. Remember that aircraft type can change due to operational demands, so the plane you catch might be different on the day.

You can usually cancel or change your flight, although there may be additional charges if you booked more than 24 hours ago. Need to keep your options open? Use Expedia’s “Changes included” and “No cancel fee” filters to find flights that won’t charge extra if you have to revise your plans. To update your booking, head to “Trips,” select your flight and click on “Manage Booking” for more details.