Cheap Flights from Chicago to Denver International

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Flight deals from Chicago to Denver International Airport

Looking for a cheap last-minute deal or the best return flight from Chicago to Denver International Airport? If you want to travel next month, return fares start from Rs35,682. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Chicago to Denver International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Denver International flights are currently cheapest in May.

Direct flights from Chicago to Denver International

Chicago to Denver International: Alternative routes

Compare routes from Chicago to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Chicago to Denver: Flight information

The things to know before you go.
Cheapest flight foundRs7,774
Cheapest month to flyMay
Average flight time2 hrs, 46 mins
Most popular airlineAmerican Airlines
Average flights per week617

Finding cheap flights from Chicago to Denver International: Frequently asked questions

The best price we found for a return flight from Chicago to Denver International is Rs15,525. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 45 minutes is the average flight time from Chicago to Denver International.
American Airlines, United and Southwest Airlines fly direct from Chicago to Denver International.
As of March 2026, there are 617 flights per week flying from Chicago to Denver International.
The cheapest month to fly from Chicago to Denver International is usually May.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Denver International Airport on Tuesday, 5 May 2026.
Yes – the average flight time is 2 hours and 45 minutes.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Denver International is Frontier Airlines .

Flying from Chicago to Denver International Airport (DEN): What you need to know

  • Begin your trip planning by looking up the most convenient departure point for your flight from Chicago to Denver International Airport (DEN). Explore your options for taking off from Chicago O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW), the city's main airports.

  • 2 hours 45 minutes is the average travel time for a direct Chicago to Denver International Airport flight.

  • Denver is one hour behind Chicago. Denver International Airport is located in Denver, which is in the UTC-7 timezone.

  • Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) is the most popular route. There are 103 direct departures a week to pick from. If you prefer starting your day later, take the last flight with United Airlines at 10:17pm. Choose the first ORD to DEN departure with United Airlines at 5am if you'd rather not wait around.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport with enough time to catch your flight from Chicago to DEN.

  • July is a busy time to fly out. If you're taking off then or around a major holiday like July Fourth, show up even earlier. Aim for at least two hours ahead for domestic flights and up to four hours for international journeys.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • You can find a direct flight from Chicago to Denver International Airport (DEN) departing from Chicago O'Hare International Airport (ORD).

  • At ORD, there's a good selection of carriers that operate direct flights from Chicago to Denver International Airport, including:

  • United is the most frequently chosen airline for flights from ORD to DEN.

  • Among carriers on this route, Southwest Airlines has the best track record for timely arrivals.

  • ORD is around 27 kilometres from central Chicago. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 30 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 45 minutes.

  • In search of a comfortable hotel close to Chicago O'Hare International Airport? If you're catching an early flight from Chicago to Denver International Airport, these stays will put you just around the corner from the terminal:

  • Of all flights leaving Chicago O'Hare International Airport, 70% arrive as scheduled at their destination.

  • You'll find ORD at 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • Consider starting your trip from Chicago Midway International Airport (MDW). You can book a direct Chicago to Denver International Airport (DEN) plane ticket with departures from this hub.

  • Southwest Airlines operates direct flights from Chicago to DEN out of MDW. Book your favourite window (or aisle) seat and reach your destination in a single journey.

  • Southwest Airlines is the top choice for travellers flying from MDW to DEN.

  • Flights between Chicago Midway International Airport and Denver International Airport are more likely to arrive as scheduled with Frontier Airlines than with any other carrier.

  • You can arrive at MDW from the centre of Chicago in approximately 25 minutes by car, depending on traffic. The ride on public transport will take roughly 30 minutes to cover the 16 kilometres or so.

  • Get a head start on your holiday with an extra night away from home. Before catching your Chicago to DEN flight, unwind in one of these hotels close to Chicago Midway International Airport:

  • Chicago Midway International Airport has an on-time performance rate of 76%. This figure provides insight into how often flights that take off from this airport reach their destination on schedule.

  • MDW is located at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • RFD is roughly 145 kilometres from central Chicago. The drive from the city centre to the airport takes about 1 hour 40 minutes. If you're planning to use public transport, expect a journey time of around 2 hours.

  • Make catching an early Chicago to Denver International Airport flight one of the easiest parts of your trip. Stay at one of these hotels close to Chicago Rockford International Airport and get to your gate with plenty of time to spare:

  • Airports have an on-time performance rating that monitors how often flights touch down as expected. At RFD, that rate is 71%.

  • The address of Chicago Rockford International Airport is 2 Airport Cir.

About Denver International Airport (DEN)

  • Hop off your flight from Chicago to Denver International Airport and be in your hotel bed soon after. If you're looking for a convenient option that's not too far from DEN, head for Baymont by Wyndham Denver International Airport.

  • Booking your ride around one week in advance of your Chicago to Denver International Airport flight can help you secure the lowest rate.

  • DEN is located at 8500 Pena Boulevard.

Getting from Denver International Airport (DEN) to central Denver

  • Central Denver is around 40 kilometres from Denver International Airport and takes about 35 minutes to reach by car. See what your options are for heading into the city, whether that's with a car hire, taxi or ride-share.

  • If you're using public transport, expect a journey of roughly 35 minutes.

How to find the cheapest flights from Chicago to Denver International Airport (DEN)

  • At the moment, Rs7,774 is the lowest price we've found for a one-way ticket from Chicago to Denver International Airport. The cheapest price for a return flight is Rs15,525. Remember fares can change due to availability at the time of booking.

  • Book 11 months before you travel. Pricing trends show that this is the ideal window for finding cheap flights from Chicago to DEN.

  • The best month for finding cheap Chicago to Denver International Airport tickets is April. Use the 'Whole month' tool to compare flight prices, then select the dates that offer the biggest savings.

  • Finding a cheap plane ticket from Chicago to DEN is easy with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch as soon as there's a better deal.

  • Save money on your flight from Chicago to Denver International Airport by using the search filters. Choose your ideal departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Chicago to Denver International Airport (DEN)

  • December is the quietest month for flights from Chicago to Denver International Airport (DEN), while July is the busiest. Figure out the ideal time to go to Denver based on whether you like a bustling atmosphere or a more laid-back vibe.

  • When booking your Chicago to DEN plane ticket, consider the weather you're most comfortable in. July is the warmest month in Denver, with temperatures ranging from 14ºC to 32ºC.

  • January has temperatures of between -9ºC and 7ºC. Look for cheap tickets from Chicago to Denver International Airport around that time if you want to travel when it's cooler.

More about Denver

Explore more of the United States

  • Colorado Springs is just one of the many cities in the United States waiting to be explored once you've seen the sights of Denver. Around 113 kilometres away to the south, its top attractions include Garden of the Gods, Pikes Peak Region Attractions and Red Rock Canyon.

  • If you're interested in discovering another major destination in the United States, consider Pueblo, about 177 kilometres south of Denver. Rosemount Museum, Cathedral of the Sacred Heart and Sangre de Cristo Arts & Conference Centre are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.