$75 Cheap flight deals from Fort Collins (DEN) to Chicago (CHI)

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This Weekend's Flight Deals from Fort Collins to Chicago

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jun 20 - Tue, Jun 24
DEN
Denver Intl.
ORD
O'Hare Intl.
$231 Roundtrip, just found
$231
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Jun 20 from Denver Intl. to O'Hare Intl., returning Tue, Jun 24, priced at $231 just found
Sat, Jun 21 - Sat, Jun 28
DEN
Denver Intl.
MDW
Midway Intl.
$231 Roundtrip, found 20 hours ago
$231
Roundtrip
found 20 hours ago
Select Frontier Airlines flight, departing Sat, Jun 21 from Denver Intl. to Midway Intl., returning Sat, Jun 28, priced at $231 found 20 hours ago

Airfares from $75 One Way, $138 Round Trip from Fort Collins to Chicago

Prices starting at $138 for return flights and $75 for one-way flights to Chicago were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Aug 14 - Mon, Aug 18
DEN
Denver
MDW
Chicago
$138 Roundtrip, found 2 days ago
$138
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Aug 14 from Denver to Chicago, returning Mon, Aug 18, priced at $138 found 2 days ago
Sat, Sep 6 - Sat, Sep 13
DEN
Denver
ORD
Chicago
$157 Roundtrip, found 9 hours ago
$157
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Sat, Sep 6 from Denver to Chicago, returning Sat, Sep 13, priced at $157 found 9 hours ago
Wed, Nov 26 - Fri, Nov 28
DEN
Denver
ORD
Chicago
$307 Roundtrip, found 2 days ago
$307
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Wed, Nov 26 from Denver to Chicago, returning Fri, Nov 28, priced at $307 found 2 days ago
Sat, Jul 12 - Tue, Jul 22
DEN
Denver
ORD
Chicago
$332 Roundtrip, just found
$332
Roundtrip
just found
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Sat, Jul 12 from Denver to Chicago, returning Tue, Jul 22, priced at $332 just found
Wed, Jan 21 - Wed, Jan 28
DEN
Denver
ORD
Chicago
$383 Roundtrip, found 4 days ago
$383
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Wed, Jan 21 from Denver to Chicago, returning Wed, Jan 28, priced at $383 found 4 days ago

Chicago economy flight packages

Price found within the past 48 hours. Click for updated prices.
Embassy Suites by Hilton Chicago Downtown River North
4.0-star property

Embassy Suites by Hilton Chicago Downtown River North

8.4/10 Very Good! (4,196 reviews)

Jul 29 - Aug 1

3 night stay

Denver (DEN) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Excellent stay. Room was clean and well-designed for our family. Fantastic complimentary breakfast every morning.

Reviewed on Jun 13, 2025

Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

9.4/10 Exceptional! (2,008 reviews)

Jul 29 - Aug 1

3 night stay

Denver (DEN) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Our second time. Here, highly recommended

Reviewed on Mar 3, 2025

Level Chicago – Old Town
4.0-star property

Level Chicago – Old Town

9/10 Wonderful! (319 reviews)

Jul 29 - Aug 1

3 night stay

Denver (DEN) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
per person
found 1 day ago
Front desk and maintenance staff was amazing super succeeded our expectations i will return gor future dates

Reviewed on Feb 16, 2024

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More About Flying To Chicago from Fort Collins

Route Information for Flights from Fort Collins to Chicago

Origin Airport IATA Code
DEN
Destination Airport IATA Code
CHI
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival
Mar 10, 2018

Great overall service. Smooth landing. Plane was even early.

A verified traveler
Denver to Chicago · United

Fort Collins to Chicago

Whether you want to book cheap flights from Fort Collins to Chicago or are looking for the perfect package holiday, Orbitz is your one-stop source. Taking the stress and expense out of travel, Orbitz helps you find the best fares for Fort Collins to Chicago flights.

Make the Most of Your Vacation

Not only does Orbitz have cheap deals for Fort Collins to Chicago flights, we can also help you plan your vacation in advance. Why wait in lengthy lines for tickets to shows, amusement parks, and other attractions when you could be making the most of your holiday? Add activities to your flight booking for fewer hassles once you arrive in Chicago.

Planning on the Go

Book your flights from Fort Collins to Chicago wherever you are with the Orbitz app for Android and iPhone. Or simply use m.orbitz.com on your mobile browser to search and book the Fort Collins to Chicago flights that you want. And if you’re running late, you check your flight status and baggage claim information on your mobile device too too.

Craft Your Perfect Vacation

Orbitz takes the stress out of vacation planning with great deals on flights from Fort Collins to Chicago, hotels, car rentals, cruises, and more. Mix and match results for your perfect trip, or book a complete vacation package.

Keep Informed With Orbitz

With Orbitz’s free alerts service, you will stay informed of flight or services disruptions to your Fort Collins to Chicago flights. The alerts can be sent straight to your mobile phone or email.

Frequently asked questions

Are there non-stop flights from Fort Collins to Chicago?
As many as 4 airlines operate nonstop services from Denver, CO (DEN-Denver Intl.) to Chicago, IL (ORD-O’Hare Intl.), so you won’t have to stress about swapping planes or missing your connecting flight. Leading carriers on this route include:

  • United Airlines
  • Southwest Airlines
  • American Airlines
  • Frontier Airlines

What is the shortest flight from Fort Collins to Chicago?
The trip from Fort Collins to Chicago can be as quick as 2 hours and 15 minutes. With a short and sweet flight time like this, why not organize a spur-of-the-moment getaway?
What airlines fly from Fort Collins to Chicago most frequently?
Below are the airlines that operate the most frequently between Denver Intl. Airport (DEN) to O’Hare Airport. Whatever you look for in a carrier, we’re sure you’ll find one that meets your needs among these: United Airlines - (UA) with 273 flights every month Southwest Airlines - (WN) with 173 flights every month American Airlines - (AA) with 139 flights every month Frontier Airlines - (F9) with 30 flights every month
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won’t keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.