$34 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.

Sat, Nov 8 - Mon, Nov 10
DEN
Denver Intl.
MDW
Midway Intl.
$155 Roundtrip, found 3 days ago
$155
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Nov 8 from Denver Intl. to Midway Intl., returning Mon, Nov 10, priced at $155 found 3 days ago
Sat, Nov 8 - Wed, Nov 12
DEN
Denver Intl.
ORD
O'Hare Intl.
$183 Roundtrip, found 6 hours ago
$183
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Nov 8 from Denver Intl. to O'Hare Intl., returning Wed, Nov 12, priced at $183 found 6 hours ago

Airfares from $34 One Way, $64 Round Trip from Fort Collins to Chicago

Prices starting at $64 for return flights and $34 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.

Mon, Jan 12 - Thu, Jan 15
DEN
Denver
MDW
Chicago
$64 Roundtrip, found 15 hours ago
$64
Roundtrip
found 15 hours ago
Select Frontier Airlines flight, departing Mon, Jan 12 from Denver to Chicago, returning Thu, Jan 15, priced at $64 found 15 hours ago
Thu, Jan 22 - Thu, Jan 29
DEN
Denver
ORD
Chicago
$64 Roundtrip, found 5 hours ago
$64
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Jan 22 from Denver to Chicago, returning Thu, Jan 29, priced at $64 found 5 hours ago
Mon, Dec 8 - Mon, Dec 15
DEN
Denver
MDW
Chicago
$65 Roundtrip, found 5 days ago
$65
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Dec 8 from Denver to Chicago, returning Mon, Dec 15, priced at $65 found 5 days ago
Fri, Jan 16 - Sun, Jan 18
DEN
Denver
RFD
Rockford
$155 Roundtrip, found 2 days ago
$155
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Jan 16 from Denver to Rockford, returning Sun, Jan 18, priced at $155 found 2 days ago
Thu, Feb 12 - Sun, Feb 15
DEN
Denver
MDW
Chicago
$155 Roundtrip, found 14 hours ago
$155
Roundtrip
found 14 hours ago
Select Southwest Airlines flight, departing Thu, Feb 12 from Denver to Chicago, returning Sun, Feb 15, priced at $155 found 14 hours ago

Chicago economy flight packages

Price found within the past 48 hours. Click for updated prices.
Staybridge Suites Chicago O'Hare - Rosemont by IHG
3.0-star property

Staybridge Suites Chicago O'Hare - Rosemont by IHG

9/10 Wonderful! (1,018 reviews)

Dec 12 - Dec 15

3 night stay

Denver (DEN) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $297, price is now $193 per person
$193
per person
found 1 day ago
Clean and well kept.

Reviewed on Oct 14, 2025

The Westin Michigan Avenue Chicago
4.5-star property

The Westin Michigan Avenue Chicago

8.8/10 Excellent! (1,070 reviews)

Dec 22 - Dec 26

4 night stay

Denver (DEN) to Chicago (ORD)

United • Coach

Chicago (ORD) to Denver (DEN)

Southwest Airlines • Coach
Save 100% on your flight
Price was $1,369, price is now $708 per person
$708
per person
found 1 day ago
Everything is EXCELLENT. But don’t consider the hotel for breakfast lunch or dinner

Reviewed on Oct 18, 2025

Hilton Chicago O'Hare Airport
4.0-star property

Hilton Chicago O'Hare Airport

8.2/10 Very Good! (2,141 reviews)

Dec 12 - Dec 15

3 night stay

Denver (DEN) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $496, price is now $314 per person
$314
per person
found 1 day ago
The AC was not working properly and the room felt stuffy. We were there for a night and could not sleep after a couple of hours because of stuffiness.

Reviewed on Sep 14, 2025

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Chicago first class flight packages

Price found within the past 48 hours. Click for updated prices.
Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

9.4/10 Exceptional! (2,602 reviews)

Dec 20 - Dec 23

3 night stay

Denver (DEN) to Chicago (ORD)

United • Roundtrip • FirstClass
Price was $942, price is now $775 per person
$775
per person
found 5 hours ago
One day didn’t receive room service

Reviewed on Sep 2, 2025

Trump International Hotel & Tower Chicago
5.0-star property

Trump International Hotel & Tower Chicago

9.4/10 Exceptional! (1,761 reviews)

Dec 20 - Dec 23

3 night stay

Denver (DEN) to Chicago (ORD)

United • Roundtrip • FirstClass
Price was $1,529, price is now $1,187 per person
$1,187
per person
found 5 hours ago
Food was amazing and the staff was amazing. Room was incredible! Felt like we were royalty on our visit!

Reviewed on Oct 13, 2025

Park Hyatt Chicago
5.0-star property

Park Hyatt Chicago

9.6/10 Exceptional! (1,006 reviews)

Dec 20 - Dec 23

3 night stay

Denver (DEN) to Chicago (ORD)

United • Roundtrip • FirstClass
Price was $1,500, price is now $1,219 per person
$1,219
per person
found 5 hours ago
From the moment you walk into their lobby at the hotel, you enter a place of calm and relaxation. We stayed in a room with the Water Tower view, and if you have that as the option, take it. It was a beautiful sight to see waking up every morning. This hotel like their other properties are in a class of their own.

Reviewed on Sep 13, 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

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Flight Deals on the Go

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Guaranteed low prices for Fort Collins to Chicago flights makes Orbitz the perfect online budget travel source.

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.

More Destinations

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.