Find Cheap Flights from Chicago to Denver (CHI - DEN)

Flights overview

Useful information for finding cheap flights from Chicago to Denver and booking your next trip

Cheapest round-trip flights	$58	Frontier Nonstop 3 hr Thu, Feb 5 — Sun, Feb 8	The cheapest round-trip flight from Chicago to Denver is currently $58
Cheapest one-way flight	$29	Frontier Nonstop 3 hr Thu, Feb 5	The cheapest one-way flight from Chicago to Denver is currently $29
Cheapest nonstop flights	$129	Frontier Nonstop 4 hr Fri, Jan 16 — Sun, Jan 18	The cheapest nonstop round-trip flight from Chicago to Denver is currently $129
Last-minute weekend getaway	$164	Frontier 1 stop 19 hr Thu, Nov 20 — Mon, Nov 24	The cheapest last-minute weekend getaway from Chicago to Denver is currently $164
Cheapest business class flights	$425	United Nonstop 3 hr Fri, Jan 9 — Sun, Jan 11	The cheapest business class round-trip flight from Chicago to Denver is currently $425

Fastest flight	2 hr 35 min	The fastest nonstop flight from Chicago to Denver takes 2 hr 35 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Chicago to Denver is typically March. The most expensive month to fly is typically July.

March Cheapest	Typical prices: $80–220
July Most expensive	Typical prices: $135–220

Popular airlines from Chicago to Denver

United

Nonstop

from $155

Typical price: $165–350

70 weekly nonstop flights

ORD - DEN Every day

991 weekly connecting flights

ORD - DEN Every day
Southwest

Nonstop

from $155

Typical price: $165–330

40 weekly nonstop flights

MDW, ORD - DEN Every day

2419 weekly connecting flights

MDW, ORD - DEN Every day
American

Nonstop

from $168

Typical price: $170–375

21 weekly nonstop flights

ORD - DEN Every day

213 weekly connecting flights

ORD - DEN Every day
Frontier

Nonstop

from $58

Typical price: $95–225

10 weekly nonstop flights

MDW, ORD - DEN Every day

55 weekly connecting flights

MDW, ORD - DEN Every day
Delta

from $197

Typical price: $215–520

341 weekly connecting flights

MDW, ORD - DEN Every day
Alaska

from $262

Typical price: $380–800

21 weekly connecting flights

ORD - DEN Every day

Popular airports near Chicago

Chicago O'Hare International Airport (ORD)

Chicago United States 31 min 16 mi
Chicago Midway International Airport (MDW)

Chicago United States 26 min 9 mi
Milwaukee Mitchell International Airport (MKE)

Milwaukee United States 1 hr 28 min 75 mi
Indianapolis International Airport (IND)

Indianapolis United States 2 hr 58 min 165 mi

Popular airports near Denver

Denver International Airport (DEN)

Denver United States 39 min 19 mi
Colorado Springs Airport (COS)

Colorado Springs United States 1 hr 27 min 66 mi
Centennial Airport (APA)

Denver United States 27 min 14 mi
Eagle County Regional Airport (EGE)

Vail United States 2 hr 19 min 103 mi

Frequently asked questions about flying from Chicago to Denver

When are the cheapest days to fly from Chicago to Denver?

The cheapest flights from Chicago to Denver are usually in March. Typical ticket prices in March range from $80 to $220.

Which airlines provide the cheapest flights from Chicago to Denver?

The cheapest round-trip flight from Chicago to Denver recently found on Google Flights was with Frontier from $58. The cheapest one-way flight was with Frontier from $29.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Chicago to Denver is $155, flying from Jan 8 to Jan 11.
The cheapest Southwest flight from Chicago to Denver is $155, flying from Jan 8 to Jan 12.
The cheapest American flight from Chicago to Denver is $168, flying from Jan 22 to Jan 25.
The cheapest Frontier flight from Chicago to Denver is $58, flying from Feb 5 to Feb 8.
The cheapest Delta flight from Chicago to Denver is $197, flying from Jan 8 to Jan 11.
The cheapest Alaska flight from Chicago to Denver is $262, flying from Jan 24 to Jan 26.

What are the cheapest flights from Chicago to Denver?

The cheapest round-trip flight from Chicago to Denver starts at $58 from Thu, Feb 5 to Sun, Feb 8. The cheapest one-way flight starts at $29 and departs on Thu, Feb 5.

How long does it take to fly from Chicago to Denver?

2 hr 35 min is the shortest flight time from Chicago to Denver.

When should you fly to Denver, United States?

Denver’s mild summer months (Jun–Aug) are a popular time for visitors exploring the city and nearby national parks. The ski season runs through winter (Nov–Mar). Major events include the National Western Stock Show & Rodeo (Jan) and A Taste of Colorado (Sep) food and arts festival.

How do I find cheap dates to fly from Chicago to Denver?

It's easy to use Google Flights to find the cheapest days to fly from Chicago to Denver.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What is the best airline to fly from Chicago to Denver?

What counts as the best airline for your flights from Chicago to Denver really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Chicago to Denver.

In terms of nonstop flights, United is the most popular. United offers 70 nonstop flights and 991 connecting flights per week. United flies from Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .

In terms of flights, Southwest is the most popular. Southwest offers 40 nonstop flights and 2,419 connecting flights per week. Southwest flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .

Other popular airlines flying from Chicago to Denver are:

American offers 21 nonstop flights and 213 connecting flights per week. American flies from Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .
Frontier offers 10 nonstop flights and 55 connecting flights per week. Frontier flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .
Delta offers 341 connecting flights per week. Delta flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .
Alaska offers 21 connecting flights per week. Alaska flies from Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .

The number of connecting flights refers to distinct flights with at least one stop between Chicago and Denver.

Which airlines provide the cheapest flights from Chicago to Denver?

The cheapest round-trip flight from Chicago to Denver recently found on Google Flights was with Frontier from $58. The cheapest one-way flight was with Frontier from $29.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest United flight from Chicago to Denver is $155, flying from Jan 8 to Jan 11.
The cheapest Southwest flight from Chicago to Denver is $155, flying from Jan 8 to Jan 12.
The cheapest American flight from Chicago to Denver is $168, flying from Jan 22 to Jan 25.
The cheapest Frontier flight from Chicago to Denver is $58, flying from Feb 5 to Feb 8.
The cheapest Delta flight from Chicago to Denver is $197, flying from Jan 8 to Jan 11.
The cheapest Alaska flight from Chicago to Denver is $262, flying from Jan 24 to Jan 26.

Which airlines have direct flights from Chicago to Denver?

Southwest, Frontier, United and American fly direct from Chicago to Denver.

There are 70 United direct flights from Chicago to Denver per week. Flights are available every day.
There are 40 Southwest direct flights from Chicago to Denver per week. Flights are available every day.
There are 21 American direct flights from Chicago to Denver per week. Flights are available every day.
There are 10 Frontier direct flights from Chicago to Denver per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

Which airline provides the cheapest last-minute getaway flight from Chicago to Denver?

The cheapest last-minute deal between Chicago and Denver at price $164 is offered by Frontier from Thu, Nov 20 to Mon, Nov 24.

Which airlines have direct flights from Chicago to Denver?

Southwest, Frontier, United and American fly direct from Chicago to Denver.

There are 70 United direct flights from Chicago to Denver per week. Flights are available every day.
There are 40 Southwest direct flights from Chicago to Denver per week. Flights are available every day.
There are 21 American direct flights from Chicago to Denver per week. Flights are available every day.
There are 10 Frontier direct flights from Chicago to Denver per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

When are direct flights from Chicago to Denver available?

There are direct flights from Chicago to Denver on a daily basis.

What are the cheapest direct flights from Chicago to Denver?

The cheapest direct (nonstop) round-trip flights between Chicago and Denver start at $129 from Fri, Jan 16 to Sun, Jan 18 with Frontier.

How can I find nonstop flights from Chicago to Denver?

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Chicago to Denver, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

What are the cheapest business class flights from Chicago to Denver?

The cheapest business class round-trip flights between Chicago and Denver start at $425 from Fri, Jan 9 to Sun, Jan 11 with United.

What are the cheapest economy class flights from Chicago to Denver?

The cheapest economy class round-trip flights between Chicago and Denver start at $58 from Thu, Feb 5 to Sun, Feb 8.

How can I book business class trips from Chicago to Denver?

To book business class trips from Chicago to Denver, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

Are there any last-minute deals from Chicago to Denver next weekend?

The best last-minute getaway deal for the next weekend between Chicago and Denver starts at $164 from Thu, Nov 20 to Mon, Nov 24 with Frontier.

Which airline provides the cheapest last-minute getaway flight from Chicago to Denver?

The cheapest last-minute deal between Chicago and Denver at price $164 is offered by Frontier from Thu, Nov 20 to Mon, Nov 24.

How can I find last-minute flight deals from Chicago to Denver?

To find last-minute flight deals from Chicago to Denver, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.