Cheap Flights to Denver

Denver is the capital of Colorado and one of the fastest-growing travel destinations in the United States. Known as the Mile High City, Denver combines a vibrant downtown with easy access to the Rocky Mountains, making it a popular destination for outdoor adventures, skiing, national parks, business travel, and sporting events. Visitors can explore attractions such as Union Station, Red Rocks Amphitheatre, Denver Art Museum, and nearby mountain resorts throughout the year. Denver International Airport serves as one of North America's largest aviation hubs, providing nonstop connections across the United States and around the world. Travobooker compares fares across hundreds of airlines, helping you find the best available flight quickly and easily. Every fare includes taxes, fuel surcharges, and our service fee, with no hidden charges added during checkout.

Denver Airport

Denver is primarily served by one major commercial airport, offering extensive domestic and international connectivity.

Denver International Airport (DEN)

Denver International Airport is the largest airport in North America by land area and one of the busiest airports in the world. Located approximately 25 miles northeast of Downtown Denver, DEN serves more than 215 destinations across North America, Europe, Latin America, and Asia. It is a major hub for United Airlines, Southwest Airlines, and Frontier Airlines, while American Airlines, Delta Air Lines, Alaska Airlines, Air Canada, Lufthansa, British Airways, Icelandair, and numerous other carriers also operate regular services.

The airport features one main terminal connected to multiple concourses by an automated underground train system. Travelers can reach Downtown Denver using the RTD A Line commuter rail, which provides direct service to Denver Union Station in approximately 37 minutes. Rental cars, airport shuttles, taxis, ride-share services, and regional buses are also readily available.

Popular Routes to Denver

New York to Denver
Los Angeles to Denver
Chicago to Denver
Dallas to Denver
Houston to Denver
Phoenix to Denver
Las Vegas to Denver
Seattle to Denver
San Francisco to Denver
Atlanta to Denver
Orlando to Denver
Miami to Denver
Boston to Denver
Washington, D.C. to Denver
Toronto to Denver
Vancouver to Denver
London to Denver
Frankfurt to Denver
Reykjavík to Denver
Mexico City to Denver

Airlines Flying to Denver

The following airlines operate regular services to Denver International Airport. Available airlines vary depending on route and travel dates.

United Airlines
Southwest Airlines
Frontier Airlines
American Airlines
Delta Air Lines
Alaska Airlines
JetBlue
Spirit Airlines
Air Canada
WestJet
British Airways
Lufthansa
Icelandair
Aeromexico
Volaris
Copa Airlines
Sun Country Airlines
Hawaiian Airlines

Best Time to Visit Denver

Denver offers four distinct seasons, with each providing unique opportunities for sightseeing, outdoor recreation, and mountain adventures.

Spring (March to May) brings gradually warming temperatures and blooming parks across the city. While nearby mountains often continue to receive snowfall, Denver itself enjoys comfortable weather that is ideal for exploring downtown attractions, breweries, museums, and public parks. Airfare is generally moderate outside Spring Break periods.

Summer (June to August) is one of the most popular times to visit. Warm days, low humidity, and abundant sunshine make it perfect for hiking, cycling, festivals, and day trips into Rocky Mountain National Park. Visitor numbers increase significantly during school holidays, resulting in higher demand for flights and accommodation.

Autumn (September to November) is widely regarded as one of the best times to experience Denver. Pleasant temperatures, colorful mountain landscapes, and fewer crowds make this season ideal for scenic drives and outdoor activities. September and October often provide a good balance between weather and airfare.

Winter (December to February) attracts travelers heading to Colorado's world-famous ski resorts including Vail, Breckenridge, Aspen, Keystone, and Winter Park. While snowfall is common in the mountains, Denver itself generally experiences sunny winter days. Holiday travel increases airfare during late December, while January often offers more competitive prices outside ski weekends.

Tips for Booking Cheap Flights to Denver

Denver's position as a major airline hub creates strong competition between carriers, helping travelers find competitive fares throughout much of the year.

January, February, April, September, and October often provide some of the lowest airfare. Christmas, New Year, major ski holidays, and the peak summer travel season generally experience the highest demand.

Booking your flight four to seven weeks before departure often provides excellent value for domestic travel. Travelers visiting Colorado during ski season should consider booking several months in advance, especially for holiday periods.

Flexible travel dates can significantly improve your chances of finding lower fares, particularly if you avoid Friday evening departures and Sunday returns.

Travobooker's flexible payment option allows you to secure your booking by paying 50% upfront and complete the remaining balance up to 72 hours before your scheduled departure.

Frequently Asked Questions

Which airport should I fly into for Denver?

Denver International Airport is the primary airport serving Denver and the surrounding Rocky Mountain region. It offers the largest selection of domestic and international flights and convenient access to Downtown Denver and Colorado's mountain destinations.

How do I get from Denver International Airport to Downtown Denver?

The RTD A Line commuter rail connects Denver International Airport with Union Station in Downtown Denver in approximately 37 minutes. Travelers can also use airport shuttles, ride-share services, taxis, rental cars, and regional buses.

What is the best time of year to visit Denver?

Summer and autumn offer excellent weather for sightseeing and outdoor activities, while winter is ideal for travelers visiting Colorado's ski resorts. Spring provides pleasant temperatures with fewer visitors.

Which airlines operate the most flights to Denver?

United Airlines, Southwest Airlines, and Frontier Airlines all maintain major hubs at Denver International Airport. American Airlines, Delta Air Lines, Alaska Airlines, Air Canada, Lufthansa, British Airways, and several other carriers also provide regular service.

Is Denver a good base for exploring the Rocky Mountains?

Yes. Denver provides convenient access to Rocky Mountain National Park, Estes Park, Vail, Breckenridge, Aspen, Keystone, Winter Park, Colorado Springs, and numerous hiking, skiing, and scenic destinations across Colorado.