$35 Cheap Flights from Denver (DEN) to Las Vegas (LAS)

You can find cheap one-way flights from $35 and cheap return flights $70 Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) with Expedia. One-way flights usually range from $93 to $1212, and return flights typically cost between $201 and $1560. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) ticket fares go up or down.

*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.

February is typically the cheapest month to fly from Denver (DEN) to Las Vegas (LAS), with average return fares around $192. This is about 14% lower than the average price throughout the year, as demand tends to drop after the holiday season. Other cheap months to fly from Denver to Las Vegas include September and October.

*Averages based on flights available on Expedia in the last year.

There are 2 airlines offering direct flights from DEN to LAS:

• United operates around 79 direct flights from DEN to LAS every week
• Frontier Airlines operates around 36 direct flights from DEN to LAS every week

JetBlue Airways is one of the cheapest airlines offering connecting flights from Denver Intl. (DEN) to Harry Reid Intl. (LAS), with round-trip tickets starting from around $187. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

*Prices based on flights available on Expedia in the last year.

To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. WN offers the most daily flights from Denver to Las Vegas, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best times to fly from Denver to Las Vegas are February and September. Return flights during these months average around $192, making them the most economical choices. February is ideal for avoiding the crowds, while September offers great weather for exploring the city.

*Prices based on flights available on Expedia in the last year.

There are approximately 24 nonstop flights per day from Denver Intl. (DEN) to Harry Reid International Airport (LAS). For more options, look at flights that include layovers.

The earliest flight from Denver International Airport (DEN) to Harry Reid International Airport (LAS) typically departs at 12:00 AM local time, operated by Frontier Airlines. An early departure like this allows you to make the most of your time in Las Vegas. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

The most popular departure times for flights from Denver (DEN) to Las Vegas (LAS) are in the early morning, from 6am to 9am. About 28% of passengers prefer this time window. Many major carriers, including Southwest Airlines and Frontier Airlines, offer flights during this period, making it a convenient option for travelers.

Direct flights from DEN to LAS usually take about 2 hours, traveling roughly 627 miles. If you opt for a connecting flight, expect to add around 4 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

Business class seats are offered on the DEN to LAS route with American Airlines.

First class cabins are available on:

• American Airlines
• United Airlines
• Delta Air Lines

A direct, return business class ticket from Denver (DEN) to Las Vegas (LAS) typically costs between $1,033 - $1,664. A non-stop, one-way business class flight is usually around $486 - $931. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) if you opt for a connecting flight.

*Prices based on flights available on Expedia in the last year.

It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to Las Vegas from Denver Intl. (DEN), you can fly into Harry Reid International Airport (LAS) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), San Diego Intl. (SAN) before reaching Las Vegas. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) Las Vegas Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Denver, CO (DEN-Denver Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.