$64 Cheap Flights from Chicago (ORD) to Denver (DEN)

View $64 flight on Sat, Aug 9, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Chicago to Denver (ORD-DEN)

Prices were available within the past 7 days and start at $64 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, May 29 - Thu, Jun 5
ORD
Chicago
DEN
Denver
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, May 29 from Chicago to Denver, returning Thu, Jun 5, priced at $128 just found
Frontier Airlines
Fri, May 30 - Fri, Jun 6
ORD
Chicago
DEN
Denver
$130 Roundtrip, just found
$130
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, May 30 from Chicago to Denver, returning Fri, Jun 6, priced at $130 just found
Frontier Airlines
Thu, Jul 31 - Wed, Aug 6
ORD
Chicago
DEN
Denver
$134 Roundtrip, found 1 hour ago
$134
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, Jul 31 from Chicago to Denver, returning Wed, Aug 6, priced at $134 found 1 hour ago
American Airlines
Tue, May 27 - Fri, May 30
ORD
Chicago
DEN
Denver
$140 Roundtrip, just found
$140
Roundtrip
just found
Select American Airlines flight, departing Tue, May 27 from Chicago to Denver, returning Fri, May 30, priced at $140 just found
Frontier Airlines
Thu, Jul 31 - Mon, Aug 4
ORD
Chicago
DEN
Denver
$140 Roundtrip, found 4 hours ago
$140
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Thu, Jul 31 from Chicago to Denver, returning Mon, Aug 4, priced at $140 found 4 hours ago
American Airlines
Tue, Jun 3 - Fri, Jun 6
ORD
Chicago
DEN
Denver
$142 Roundtrip, just found
$142
Roundtrip
just found
Select American Airlines flight, departing Tue, Jun 3 from Chicago to Denver, returning Fri, Jun 6, priced at $142 just found
American Airlines
Tue, Jun 10 - Tue, Jun 17
ORD
Chicago
DEN
Denver
$142 Roundtrip, found 1 hour ago
$142
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Tue, Jun 10 from Chicago to Denver, returning Tue, Jun 17, priced at $142 found 1 hour ago
United
Wed, Jul 2 - Fri, Jul 4
ORD
Chicago
DEN
Denver
$145 Roundtrip, found 7 hours ago
$145
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Jul 2 from Chicago to Denver, returning Fri, Jul 4, priced at $145 found 7 hours ago
Southwest Airlines
Wed, Jul 2 - Fri, Jul 4
ORD
Chicago
DEN
Denver
$155 Roundtrip, found 7 hours ago
$155
Roundtrip
found 7 hours ago
Select Southwest Airlines flight, departing Wed, Jul 2 from Chicago to Denver, returning Fri, Jul 4, priced at $155 found 7 hours ago
Delta
Tue, Jul 22 - Wed, Jul 23
ORD
Chicago
DEN
Denver
$211 Roundtrip, found 1 hour ago
$211
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Jul 22 from Chicago to Denver, returning Wed, Jul 23, priced at $211 found 1 hour ago

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN) cost?
Pick up cheap return flights starting at $128 from O’Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving ORD on May 21 2025 and touching down at DEN. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from ORD to DEN?
The cheapest flights from ORD to DEN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
Enjoy a seamless journey to Denver Intl. Airport (DEN). 4 airlines operate direct flights from O’Hare Intl. Airport (ORD), including:

  • United Airlines
  • Southwest Airlines
  • American Airlines

What is the cheapest airline that flies from ORD to DEN?
Right now, the cheapest carrier offering one-way flights from ORD to DEN is Frontier Airlines. You can book a seat on this route from $64. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ORD on July 15 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
With, on average, 14 direct flights departing from O’Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN) daily, you’ll be soaring through the skies in no time.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
The 12 PM departures from ORD to DEN are the top choice for many travelers. Greater demand means you’ll likely pay more for these departures. If you want to save on your fare, pick a less crowded time to fly.
What day of the week has the most flights from ORD to DEN?
Sunday offers the most flights from O’Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN). Consider taking off on this day and you’ll have a greater chance of finding a schedule that works for you.
What is the earliest flight from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
Hop on the earliest flight at around 6:15AM UTC-6, departing from O’Hare Intl. Airport (ORD). You’ll be in the air for roughly 2h 45m, arriving at Denver Intl. Airport (DEN) at approximately 8:00AM UTC-7.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
The average flight time from ORD to DEN is 2 hours and 49 minutes, covering a distance of 890 mi.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
To avoid potential delays on the O’Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN) route, fly before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Denver from O'Hare Intl. Airport (ORD)?
Denver Intl. Airport (DEN) is the only airport in Denver with direct flights from O’Hare Intl. Airport (ORD). Check out the options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN) last-minute?
Last-minute bookings from ORD to DEN are typically more expensive. To lock in the lowest rates, start searching for flights well ahead of time. That said, if you’re flexible with your travel plans, it’s possible to find a cheap ticket right before your journey.
Is it cheaper to book an ORD to DEN flight and hotel package?
Compared with arranging flights and hotels separately, booking an ORD to DEN flight and hotel package with Expedia could result in significant savings. What’s more, managing everything in one place will take the stress out of planning your trip. Just pick your flights and select from our extensive range of hotels, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Denver Intl. Airport (DEN)?
If you booked your ORD to DEN flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.
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