$61 Cheap Frontier Airlines flights Denver (DEN) to Las Vegas (LAS)

Scoring cheap one-way Frontier Airlines flights from DEN to LAS from $61 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our affordable return fares from $90 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.

Begin your search one to three months ahead of your travel date to score cheaper fares on Frontier Airlines flights from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get the timing right, and you can enjoy significant savings on domestic flights.*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.

Leaving DEN at 6:00AM UTC-7, the first Frontier Airlines flight to LAS arrives at 7:16AM UTC-8. Flying early means you're less likely to experience cancellations.* Not a morning person? The last Frontier Airlines flight from DEN to LAS departs at 10:50PM UTC-7 and touches down at 11:59PM UTC-8.*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.

Fly from DEN to LAS with Frontier Airlines and you can look forward to a host of benefits starting with a rewarding loyalty program. When you book through Expedia as a Frontier Miles and One Key™ member, you could also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.