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Last updated on Wednesday 05/13/2026 at 05:00 AM, the fares mentioned above are for Round Trip flight tickets and inclusive of fuel surcharges, service fee and taxes . Based on historical data, these fares are subject to change without prior notice and cannot be guaranteed at the time of booking. Kindly go through our terms and conditions before booking.
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The cheapest time for travelers to fly to Denver is from November to February, with round-trip fares ranging from $80 to $120 (based on flights from Chicago to Denver).
Low season in Denver is during the shoulder months of April to May and October to November. One can easily find flights under $86 to $180 (based on flights from Chicago to Denver in May). The most expensive months to fly to Denver are August and December. If we compare flights from Atlanta to Denver in December, the round-trip fares might reach $400 and more due to high demand for festivities. During the peak season, from June through August, prices increase by over 15% to 40% compared to the low season. Therefore, the average price of a round-trip flight between Denver and Atlanta might cost $118 to $285.
If we compare the one-way fares for the three top routes, here’s the data
Denver International Airport (DEN) is served by more than 26 airlines and connects with over 231 nonstop destinations worldwide, making it one of the top hubs in the United States.
Airport statistics show that Denver International Airport (DEN) handled over 1,600 flights in a single day in January 2026.
Here is a breakdown of popular routes served by the major carriers operating flights to Denver.
The Phoenix (PHX) to Denver (DEN) flight route has the highest frequency, with 25-26 flights observed on a single day. This route is served by all major airlines- United Airlines and Southwest Airlines.
Phoenix (PHX) to Denver (DEN), One-way flight.
*fares are based on 3 months from now-
January and February usually offer the lowest airfare prices. Round-trip flights from major U.S. cities can cost around $253 - $323 (as per flight Los Angeles (LOS) to Denver (DEN))
Major airlines offering nonstop flights include American Airlines, Delta Air Lines, United Airlines, Alaska Airlines, Southwest Airlines, JetBlue Airways, Spirit Airlines, and Frontier Airlines.
DEN is located about 25 miles northeast of Downtown Denver. Travel time is typically 30–40 minutes by car or by commuter rail (A Line to Union Station).
Nonstop flights operate from New York (JFK/EWR), San Francisco (SFO), Chicago (ORD), Dallas/Fort Worth (DFW), Atlanta (ATL), Miami (MIA), Seattle (SEA), Los Angeles (LAX), and Las Vegas (LAS).
Denver International Airport has one main terminal (Jeppesen Terminal) with three concourses. Concourse A for Frontier Airlines, international carriers, and some United flights. Concourse B for United Airlines (largest presence). Concourse C for Southwest Airlines and Alaska Airlines.
Frontier Airlines and Spirit Airlines are the cheapest carriers offering budget fares to Denver.
Yes, several foreign airlines fly to Denver from Europe, Asia, and Latin America. Examples include British Airways (London), Lufthansa (Frankfurt), Icelandair (Reykjavik), Aeromexico (Mexico City), and Air Canada (Toronto).
Popular attractions include Red Rocks Amphitheatre, Denver Art Museum, Union Station, Denver Botanic Gardens, Coors Field, and Rocky Mountain National Park.
Nearby alternatives include Colorado Springs Airport (COS, ~90 miles south) and Cheyenne Regional Airport (CYS, ~100 miles north).
It is recommended to arrive 2–3 hours early for domestic flights and 3–5 hours early for international flights at DEN.
It is recommended to use incognito mode to avoid sites tracking your repeated searches. This might help reduce the likelihood of inflated fares, though it is not guaranteed.
Southwest Airlines, American Airlines, Delta Air Lines, United Airlines, Alaska Airlines, and Frontier Airlines are pet-friendly carriers that operate flights to Denver.
Yes, last-minute deals are often available through online travel agencies and airline websites, though availability can be limited.
Yes, luggage storage services are available at Denver International Airport (DEN), including secure on-site and off-site facilities for longer-term storage.
By commuter rail (A Line): 37 minutes to Union Station. By car/rideshare: 30–40 minutes depending on traffic.
Tuesdays and Wednesdays are generally the cheapest days to fly, with fares often 15–20% lower than weekends.
Denver International Airport (DEN) is typically the cheapest due to its large volume of flights and airline competition.
Available from New York (JFK/EWR), Chicago (ORD), Dallas/Fort Worth (DFW), Atlanta (ATL), Miami (MIA), Los Angeles (LAX), San Francisco (SFO), Seattle (SEA), and Las Vegas (LAS).
By train: around 37 minutes. By car/rideshare: 30–40 minutes.
Holiday flights to Denver are in high demand, especially for ski season. Prices are typically 30–50% higher than in off-peak months. Booking 2–3 months in advance is recommended.
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