$37 Cheap Flights from Denver (DEN) to Las Vegas (LAS)

View $37 flight on Wed, Apr 30, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Denver to Las Vegas (DEN-LAS)

Prices were available within the past 7 days and start at $37 for one-way flights and $69 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, May 6 - Wed, May 7
DEN
Denver
LAS
Las Vegas
$69 Roundtrip, just found
$69
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, May 6 from Denver to Las Vegas, returning Wed, May 7, priced at $69 just found
Frontier Airlines
Wed, Apr 30 - Wed, May 14
DEN
Denver
LAS
Las Vegas
$74 Roundtrip, just found
$74
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Apr 30 from Denver to Las Vegas, returning Wed, May 14, priced at $74 just found
Frontier Airlines
Fri, May 16 - Sat, May 17
DEN
Denver
LAS
Las Vegas
$76 Roundtrip, just found
$76
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 16 from Denver to Las Vegas, returning Sat, May 17, priced at $76 just found
Frontier Airlines
Mon, May 19 - Sat, May 31
DEN
Denver
LAS
Las Vegas
$81 Roundtrip, just found
$81
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, May 19 from Denver to Las Vegas, returning Sat, May 31, priced at $81 just found
Frontier Airlines
Tue, May 27 - Wed, May 28
DEN
Denver
LAS
Las Vegas
$83 Roundtrip, found 2 hours ago
$83
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Tue, May 27 from Denver to Las Vegas, returning Wed, May 28, priced at $83 found 2 hours ago
Frontier Airlines
Tue, May 13 - Wed, May 21
DEN
Denver
LAS
Las Vegas
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, May 13 from Denver to Las Vegas, returning Wed, May 21, priced at $88 just found
United
Thu, May 15 - Fri, May 16
DEN
Denver
LAS
Las Vegas
$141 Roundtrip, just found
$141
Roundtrip
just found
Select United flight, departing Thu, May 15 from Denver to Las Vegas, returning Fri, May 16, priced at $141 just found
Alaska Airlines
Tue, Jun 3 - Wed, Jun 4
DEN
Denver
LAS
Las Vegas
$176 Roundtrip, found 1 hour ago
$176
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Tue, Jun 3 from Denver to Las Vegas, returning Wed, Jun 4, priced at $176 found 1 hour ago
American Airlines
Sun, May 25 - Wed, May 28
DEN
Denver
LAS
Las Vegas
$177 Roundtrip, just found
$177
Roundtrip
just found
Select American Airlines flight, departing Sun, May 25 from Denver to Las Vegas, returning Wed, May 28, priced at $177 just found
Hawaiian Airlines
Thu, Oct 16 - Sat, Oct 18
DEN
Denver
LAS
Las Vegas
$271 Roundtrip, found 1 day ago
$271
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Thu, Oct 16 from Denver to Las Vegas, returning Sat, Oct 18, priced at $271 found 1 day ago
Flights from Denver (DEN) to Las Vegas (LAS)
Origin airport
Denver Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Roundtrip price
$68
Distance
626 mi

Denver to Las Vegas Flights

The cheapest times to fly from Denver to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Denver to Las Vegas are during the month of May. You can find some of the cheapest flights from Denver to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Denver to Las Vegas

Sunday is one of the best days to book for cheap flights from Denver to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Denver to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Denver to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $37 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Denver to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Denver to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS) cost?
You can score cheap return flights from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS) starting at $83. Book your seat and get ready for takeoff. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving DEN on May 17 2025 and touching down at LAS. The price was last updated on April 22 2025 and has not changed since.
What is the cheapest month to fly from DEN to LAS?
The cheapest flights from DEN to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
Avoid the layovers and fly direct to Harry Reid Intl. Airport (LAS) from Denver Intl. Airport (DEN) with 3 airlines, including:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines

What is the cheapest airline that flies from DEN to LAS?
With prices as low as $44 for a one-way flight from DEN to LAS, Frontier Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from DEN on June 11 2025. Prices were last updated on April 22 2025 and have not changed since.
How many flights per day from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
Each day on average, 20 nonstop flights take off from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS). Choose the departure date that fits your schedule best.
What are the most popular departure times for flights from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
The 11 AM departures from DEN to LAS are the most sought after. Greater demand means you’ll likely pay more for these departures. If you’re looking to save, choose a less crowded time to fly.
What day of the week has the most flights from DEN to LAS?
If you fly on a Sunday, you’ll get the largest range of options for flights from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
Denver Intl. Airport (DEN)’s first flight to Harry Reid Intl. Airport (LAS) departs at approximately 5:55AM UTC-7. With a total flight time of 2h 10m, you’ll touch down at around 7:05AM UTC-8.
How long does it take to fly from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
Flights from DEN to LAS have an average travel time of 2 hours and 7 minutes. The total distance between these two airports is 630 mi.
What is the best time to fly from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
To avoid possible delays on the Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS) route, aim to travel before 3 PM. Later flights are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Las Vegas from Denver Intl. Airport (DEN)?
If you’re on a direct flight from Denver Intl. Airport (DEN) to Las Vegas, Harry Reid Intl. Airport (LAS) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS) last-minute?
Holding off until just before your departure to book your flight from DEN to LAS generally means paying more. While you might find some last-minute deals, they’re not always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a DEN to LAS flight and hotel package?
Booking a DEN to LAS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of accommodations and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver Intl. Airport (DEN) to Harry Reid Intl. Airport (LAS)?
In most cases, you can reschedule or cancel your DEN to LAS flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline’s fees and guidelines on flight changes, or if you’d like more details, go to our Customer Service portal.

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*Available to One Key members.