Cheap Spirit Airlines flights Denver (DEN) to Las Vegas (LAS)

Scoring cheap one-way Spirit Airlines flights from DEN to LAS on Expedia is a breeze — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly return fares for your next exciting adventure.**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.

Browse for round-trip or one-way flights to Las Vegas in January or June. You could find an affordable fare with Spirit Airlines during these quieter months.

Look for cheap Spirit Airlines flights from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS) one to three months before your departure day. 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. No matter the fare type and itinerary, the best day of the week 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.

To figure out if there’s a direct route from DEN to LAS with Spirit Airlines or another airline, check the “Nonstop” box when looking for flights.

Sort your results by “Morning” and “Early Morning” to find the earliest flights from DEN to LAS. Jetting off early means flight cancellations are less likely.**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.

Spirit Airlines flights from Denver Intl. Airport (DEN) to Las Vegas arrive at Harry Reid Intl. Airport (LAS). This is the main entry point here.

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

It’s usually possible to reschedule or cancel your flight, although additional charges may apply if you made your booking more than 24 hours ago. Need flexible options? Make use of Expedia’s “No cancel fee” or “Changes included” filter to find flights that won’t charge extra if you need to revise your plans. To make changes, head to “Trips,” select your flight and click on “Manage Booking” for more information.