$39 Cheap Flights to Denver, CO

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Find available prices by choosing your travel dates.

How much is the cheapest flight to Denver?

Prices were available within the past 7 days and start at $39 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Delta
American Airlines
United
Sun Country Airlines

Denver Flights

Visit the Mile-High City

Denver, fondly known as the Mile-High City due to its high altitude, is a beautiful city located near the Rocky Mountains. Most people don't realize this, but Denver is a very sunny city; on average, it's sunny here 300 days a year. People love visiting Denver in order to see the majestic mountains and breathe in the fresh air. Denver is a city for all seasons; in the winter, people go snowboarding and skiing, and in the summer, they hike in the mountains and enjoy the view. Get ready to enjoy this Queen City of the West by booking your cheap flights to Denver on Expedia.com today.

Denver airports

The majority of Denver flights land at Denver Intl. Airport (DEN). This airport, commonly referred to as DIA, is the largest airport in the United States and the second largest in the world. In addition, DIA is home to the longest public use runway in the country, and it is the 11th busiest airport in the world when ranked by passenger traffic. Airlines that have a major presence at DIA include Frontier Airlines, Great Lakes Airlines, United Airlines and Southwest Airlines. DIA is a rather unique looking airport; it's covered by a white Teflon-coated fiberglass roof that resembles the Rocky Mountains in an abstract sort of way. Other airports that service the Denver area include Rocky Mountain Metropolitan Airport, Centennial Airport and Front Range Airport.

Book your flight with Expedia

Expedia.com lets you search across the largest number of airlines and flights, which means that you'll be able to find great flight deals at the perfect travel date and time. There's simply no substitute for great prices suited to your flight needs and backed by excellent customer support.

When to book your flights to Denver

There's never a bad time to book your tickets to Denver. Many people are under the impression that Denver is a cold and snowy place year-round; they would be mistaken. The weather is generally mild and pleasant in Denver throughout the entire year, even during the middle of the winter. Sure, there might be blizzards once in a while, but once it stops snowing, the snow melts away very quickly thanks to the ever present sunshine. Be sure to book Denver airfare during June through August in order to experience some of the most pleasant weather in the entire country; due to its high altitude, there is little to no humidity during the summer.

Things to do in Denver

Each January, the city of Denver celebrates the life and accomplishments of Dr. Martin Luther King Jr. Known as the Marade, a combination of the words “march” and “parade”, this event includes powerful speakers, live music, and multicultural performances. Accredited as one of the largest celebrations of its kind in the U.S., the event draws in thousands of people and passes through City Park, Civic Center Park, and the Colorado Capital State Capitol Building. For additional interesting things to do in Denver, browse our site here on Expedia.com.

If you find yourself in the Mile High City in May, don’t miss out on the Downtown Denver Arts Festival. Typically held over Memorial Day weekend, the event showcases local, as well as national artists. Featuring over 100 different artists, the festival draws in over 100,000 people each year. So get in touch with your artsy side or buy a unique souvenir during this Denver happening.

Indulge in autumn when you attend Denver’s annual Pumpkin Festival in October. Held at the stunning Denver botanic Garden, this three-day event is a Colorado tradition. With over 10 acres of pumpkins ripe for the picking, treat the entire family to a day of games, face paint, and pumpkin carving tutorials. Hold on to your family as you go through the Corn Maze and be sure to snap a picture of your little one on a pony ride.

Frequently asked questions

What month is the cheapest to fly to Denver?
The least expensive month for flights to Denver is usually March *. Set your travel dreams in motion without going over budget by flying when fares are at their lowest.*Cheapest month to fly is based on the month with the cheapest flight found on Expedia.com in the next 330 days.
Which US cities have the cheapest flights to Denver?
Get cheap flights to Denver from Chicago, Phoenix and Dallas. These cities usually offer the best fares to this destination. But keep in mind that stopovers, seasonality and demand will also have an influence on rates, so remain flexible and book when you spot a bargain.
Which US cities fly direct to Denver?
There are 164 US cities you’re able to fly to Denver directly from. Explore your options by using the “Direct flights only” filter on Expedia and find the ideal starting point for your trip. Here are some of the major cities to leave from:

  • Chicago
  • Phoenix
  • Dallas
  • Las Vegas
  • Salt Lake City

How to find a cheap flight to Denver?
Book in advance or look for a cheap flight to Denver during the off-season, such as January and February. Leaving on a Thursday could also save you 16% on average compared to a Sunday departure.* The Expedia app makes it even easier to know exactly when to book. Just turn on the toggle for “Watch prices” and get notified as soon as fares go down.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Denver?
Staying flexible about your travel plans can help you to find last-minute offers on cheap flights to Denver. To see all the available options, consider looking at different ticket types, tweaking your Denver trip dates, flying out of an alternative airport or going with another carrier.
How far in advance should I book a flight to Denver?
For some of the biggest savings on domestic journeys, book your flight to Denver 28 days ahead of your travel dates. For international flights, it’s two to four months in advance. This boosts your chances of securing the departure dates and seats you want.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Denver?
Sundays are generally the best day to book a cheap flight to Denver, with savings of around 8% on average compared to a Friday. If you choose to purchase on a Friday, be ready to pay a higher price as this is typically the most expensive day.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation’s (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Denver?
There are 19 airlines connecting Denver with 194 airports globally. The primary gateway to this city is Denver Intl. Airport (DEN). Travel with any of these leading airlines to Denver:

  • United Airlines
  • American Airlines
  • Delta Air Lines
  • Frontier Airlines

Where do you fly into Denver?
The main hub when you fly to Denver is Denver Intl. Airport (DEN), but there are some great nearby alternatives like Broomfield, CO (BJC-Rocky Mountain Metropolitan) and Centennial Airport (APA). You can also touch down at Boulder, CO (WBU-Boulder Municipal) and Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) when flying to Denver.
How far is the airport from central Denver?
You’ll be roughly 19 mi east of the center of Denver after jetting into Denver Intl. Airport (DEN).
Can I save money by booking a Denver trip package?
You could potentially save hundreds of dollars if you lock in a Denver flight and hotel package deal on Expedia. And you’ll save time and hassle by having all your travel plans in the same place. Try bundling your flight and hotel with add-ons like tours and activities for your own customized Denver escape.
Can I change or cancel my flight to Denver?
If you reserved your flight to Denver in the last 24 hours, you can often change or cancel it for free. After that, additional costs may apply depending on the airline’s terms of service. For more information, check out our Customer Service Portal. Keep in mind that some flights are non-refundable, so you may be issued a credit for a future flight instead of a direct refund. During your search on Expedia, select the “Changes included” or “No cancel fee” boxes to compare fares with flexible change policies.
Flights to Denver information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Roundtrip price
$42

Trending flights to Denver

Prices were available within the past 7 days and start at $39 for one-way flights and $58 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
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