Denver to Las Vegas
Grab Cheap Flight Deals Before They’re Gone!

Best Time To Fly Denver to Las Vegas

To secure the lowest fares, plan ahead and book early—ideally 2–4 weeks in advance.

• Cheapest months: January, February, and September
• Peak season: March-July (Best travel and event season in Las Vegas).
• Best days to fly: Tuesday and Thursday in case of midweek discounts.

How to Find Cheap Flights From Denver to Las Vegas?

If you are looking to make an affordable flight booking to Las Vegas, don’t miss these quick tips to get the absolute best fares:

• Review a Fare Calendar: Compare fares across multiple dates and airlines to find the lowest rates easily.
• Book Early: Prices for airline tickets can rise as the flight time gets closer so book early—2-4 weeks in advance—and lock in an amazing fare.
• Be Flexible: Late-night or off-peak flights are often cheaper.
• Set Up Fare Alerts: Sign up to get alerts when certain flights drop in price.
• Compare Airlines: In the comfort vs. fare comparison stage, see what budget airlines like Frontier and Spirit offer and what premium airlines like United and Delta are offering.
• Compare Nearby Airports: Although Denver International (DEN) has more options, occasionally flights from nearby Colorado Springs (COS) may offer competitive fares—worth checking both.

Major Airlines Flying From/To This Route (One-Way Prices)

Multiple of the dominant airlines offer flights from Denver (DEN) to Las Vegas (LAS), providing travelers with many travel alternatives related to comfort and ticket price. 

Southwest Airlines 

Southwest Airlines is a favored premium choice with average rates around $116 for the flight route from Denver to Las Vegas. Travelers are able to have two free checked bags, no change fees, and open seating, contributing to flexibility and traveler-friendliness. 

Frontier Airlines

Base fares from Denver to Las Vegas on Frontier Airlines can start as low as $20 (excluding baggage and seat selection). Frontier Airlines gives travelers a pure ultra model, with very competitive base fare pricing and carry-on and seating selections.  

United Airlines

United Airlines provides traditional carriers with flights from Denver to Las Vegas at an average of $116. United Airlines will give you free carry-ons, but carry-ons are not included with Basic Economy fares. In-flight wi-fi and loyalty miles to MileagePlus for travelers looking for loyalty, frequent flyers, and business travelers. 

Delta Airlines

Delta Air Lines is a well-known full-service airline, averaging $126 per ticket from Denver to Las Vegas. There are free snacks, in-flight entertainment, and most flights offer free Wi-Fi. Delta flies to a multitude of destinations with assigned seats, good on-time performance, and an easy-going travel experience, generally known for reliability and comfort.

(All fares mentioned are approximate and subject to change. Please verify current prices before booking.)