Book Cheap Flights to Denver (DEN), Colorado

Denver, the capital of the State of Colorado, situated in the South Platte River Valley, is nicknamed as “The Mile High City” because of its exact one mile high elevation above sea level. It’s no wonder that Denver is one of the USA’s highest major cities. Ranked as the Beta World City in 2014, Denver was formerly a gold mining town founded in November 1858. Today, Denver has become a popular vacation hotspot for all those seeking breathtaking views of the Rockies and enjoying winter sports at some of the excellent ski resorts here.

Instantly find and book cheap flights to Denver, Colorado from hundreds of top airlines. Our powerful search engine compares thousands of real-time fares to bring you the best deals on flight tickets to Denver International Airport (DEN). Whether you're planning a ski vacation or a city break, your search for the lowest price ends here.

Cheap Flights to Denver: Pro Tips

Cheapest Time to Fly: The lowest fares are in the shoulder seasons of April-May and September-October, avoiding ski and summer peaks.
Best Time to Book: For domestic travel, lock in the best prices by booking your flight to Denver 1-3 months in advance.
Main Airport & Hub: You will fly into Denver International Airport (DEN), a major hub for United, Southwest, and Frontier.

Let our experts find the perfect flight to Denver for you. Call our domestic travel specialists 24/7 for unpublished fares at +1-878-223-0710.

Things to Explore in Denver

Denver offers a base for the adventurous and outdoors enthusiasts to venture into the Rockies, particularly for all those looking for a great mountain experience. The Mile High City is also a great destination for families and foodies. Here are some of the best things to do during your Denver holidays.

Red Rocks Park is a big draw for outdoors enthusiasts with its excellent views of the Rocky Mountains, cinnamon-hued sandstone cliffs and miles of hiking trails
Visit the Denver Art Museum where you will find galleries showcasing more than 70,000 works by famous artists such as Winslow Homer and Vincent Van Gogh
Take a guided tour of the Molly Brown House Museum to catch a glimpse of Victorian life, city's history and the life of one of its most affluent and fascinating residents
Explore the city's Union Station, which functions as a working public transit station as well as a highly acclaimed dining and shopping center
Take a free guided tour of the United States Mint in Denver to learn about coin production
Spend some time relishing the traditional cuisines and sipping beer in the bustling Larimer Square

Interesting Facts about Denver

Before planning a vacation to Denver, here are some of the interesting facts you need to know about this fascinating city.

Denver offers 140-miles-long panoramic mountain views. There are at least 200 mountain peaks visible from Denver
Denver is nicknamed “Mile High City” because it is exactly one mile high (5,280 feet or 1,609 meters) above sea level
Denver is home to one of the largest downtowns in the USA. It is also one of the most walkable downtowns in the country. Within one mile of downtown’s radius you will find a river, three sports stadiums, a mint, museums, a performing arts center, an aquarium and a theme and water park
With its sunny, mild and dry climate, Denver offers 300 days of sunshine in a year
There are more than 200 parks within Denver and 20,000 acres of parks in the nearby mountains

With so much on offer for everyone get the best Denver airlines deals now and visit the most amazing destinations in the United States.

Please note: *All Fares displayed above are quoted in USD and inclusive of base fare, taxes, and all fees. Additional baggage fees may apply as per the airline policies. *Above fares were last found on Oct 13, 2025 and are subject to change & cannot be guaranteed at the time of booking.

Frequently Asked Questions

Denver is famous for its great outdoors and natural wonders. It’s a great place for skiing, fishing, hiking, camping and bicycling.

Denver experiences a mild climate because of its location in the Rockies. The weather conditions vary during any season and on any day.

The summer months of July and August are the perfect time to visit because of the good weather. Skiing enthusiasts and snowboarders visit Denver during the ski season running from mid-November to March.

The cheapest time to fly to Denver is typically from January to March and again in late October to early December, when demand is lowest after the holiday rush and before the ski season peaks. Airfares tend to drop midweek, especially for Tuesday and Wednesday departures.

For the best deals, book your Denver flight at least 4 to 6 weeks in advance and use flexible dates to compare prices. Avoid peak travel times such as summer vacation (June–August) and major holidays, when ticket prices often rise sharply.

To save more, check early-morning or late-night flights and set fare alerts for routes to Denver International Airport (DEN). Call +1-878-223-0710 to know more about the best deals to Denver.

For domestic U.S. flights to Denver (one-way), fares often start around US $50–$100 depending on origin, airline, and time of booking.
For round-trip U.S. flights, deals can often be found in the US $100–$150 range. Call +1-878-223-0710 to get the best deals on flight to Denver.

Airlines Flying to Denver