$54 Cheap Frontier Airlines flights Las Vegas (LAS) to Denver (DEN)

Landing cheap one-way Frontier Airlines flights from LAS to DEN from $54 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $103 for your next exciting getaway.**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.

Look for one-way or return flights to Denver in January or November. You could find lower fares with Frontier Airlines during these off-peak months.

Look for cheap Frontier Airlines flights from Harry Reid Intl. Airport (LAS) to Denver Intl. Airport (DEN) one to three months before your day of 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 type and journey, the best day to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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 operates direct flights from Harry Reid Intl. Airport (LAS) to Denver Intl. Airport (DEN), with 30 departures every week. Simply apply the “Nonstop” and “Airline” filters during your search on Expedia to find all direct Frontier Airlines flights to DEN.

On average, it takes 2h 1m to travel nonstop from Harry Reid Intl. Airport (LAS) to Denver Intl. Airport (DEN) with Frontier Airlines.

Thursday has the most Frontier Airlines flights from Harry Reid Intl. Airport (LAS) to Denver Intl. Airport (DEN). With 5 daily departures, this is the best day to find something that will work for your schedule.

Leaving LAS at 6:25AM UTC-8, the earliest Frontier Airlines flight to DEN arrives at 9:27AM UTC-7. Flying earlier in the day means you’re less likely to encounter cancellations or delays.* Prefer to travel later? The last Frontier Airlines flight from LAS to DEN departs at 10:29PM UTC-8 and touches down at 1:24AM 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.

Frontier Airlines flights from Harry Reid Intl. Airport (LAS) to Denver touch down at Denver Intl. Airport (DEN). This is the main entry point to this city.

Offering a rewarding loyalty program, Frontier Airlines is a top pick for many travelers journeying from LAS to DEN. Plus, if you’re a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be seated on an Airbus A320neo or an Airbus A321neo when flying Frontier Airlines from Harry Reid Intl. Airport (LAS) to Denver Intl. Airport (DEN). However, keep in mind that a different plane could be assigned to your route due to operational reasons.

Depending on your ticket type, a fee is typically charged if you cancel or change your flight more than 24 hours after confirmation. To find plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when looking for flights. For more details on canceling or changing your reservation, head to “Trips,” select your flight and click on “Manage Booking.”