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	$98	Frontier Nonstop 3 hr Thu, Mar 12 — Sun, Mar 15	The cheapest round-trip flight from Chicago to Denver is currently $98
Cheapest one-way flight	$41	Frontier Nonstop 4 hr Wed, Apr 1	The cheapest one-way flight from Chicago to Denver is currently $41
Last-minute weekend getaway	$250	Frontier 1 stop 11 hr Sat, Jan 24 — Sun, Jan 25	The cheapest last-minute weekend getaway from Chicago to Denver is currently $250
Cheapest business class flights	$463	United Nonstop 3 hr Thu, Mar 5 — Mon, Mar 9	The cheapest business class round-trip flight from Chicago to Denver is currently $463

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 $193

Typical price: $165–350

63 weekly nonstop flights

ORD - DEN Every day

1030 weekly connecting flights

ORD - DEN Every day
Southwest

Nonstop

from $177

Typical price: $170–330

32 weekly nonstop flights

MDW - DEN Every day

2237 weekly connecting flights

MDW, ORD - DEN Every day
American

Nonstop

from $187

Typical price: $175–380

20 weekly nonstop flights

ORD - DEN Every day

204 weekly connecting flights

ORD - DEN Every day
Delta

from $211

Typical price: $215–520

348 weekly connecting flights

MDW, ORD - DEN Every day
Frontier

Nonstop

from $98

Typical price: $100–230

3 weekly nonstop flights

ORD - DEN Every Thu, Fri, Sun

44 weekly connecting flights

MDW, ORD - DEN Every day
Alaska

from $293

Typical price: $330–780

21 weekly connecting flights

ORD - DEN Every day

Popular airports near Chicago

Chicago O'Hare International Airport (ORD)

Chicago United States 27 min 16 mi
Chicago Midway International Airport (MDW)

Chicago United States 25 min 9 mi
Milwaukee Mitchell International Airport (MKE)

Milwaukee United States 1 hr 24 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 38 min 19 mi
Colorado Springs Airport (COS)

Colorado Springs United States 1 hr 26 min 66 mi
Centennial Airport (APA)

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

Vail United States 2 hr 18 min 103 mi

Frequently asked questions about flying 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.

The cheapest round-trip flight from Chicago to Denver recently found on Google Flights was with Frontier from $98. The cheapest one-way flight was with Frontier from $41.

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

The cheapest United flight from Chicago to Denver is $193, flying from Mar 5 to Mar 9.
The cheapest Southwest flight from Chicago to Denver is $177, flying from Mar 5 to Mar 9.
The cheapest American flight from Chicago to Denver is $187, flying from Feb 28 to Mar 2.
The cheapest Delta flight from Chicago to Denver is $211, flying from Apr 17 to Apr 20.
The cheapest Frontier flight from Chicago to Denver is $98, flying from Mar 12 to Mar 15.
The cheapest Alaska flight from Chicago to Denver is $293, flying from Apr 16 to Apr 20.

The cheapest round-trip flight from Chicago to Denver starts at $98 from Thu, Mar 12 to Sun, Mar 15. The cheapest one-way flight starts at $41 and departs on Wed, Apr 1.

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

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.

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 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 63 nonstop flights and 1,030 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 32 nonstop flights and 2,237 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 20 nonstop flights and 204 connecting flights per week. American flies from Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .
Delta offers 348 connecting flights per week. Delta flies from Chicago Midway International Airport (MDW) , Chicago O'Hare International Airport (ORD) to Denver International Airport (DEN) .
Frontier offers 3 nonstop flights and 44 connecting flights per week. Frontier 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.

The cheapest round-trip flight from Chicago to Denver recently found on Google Flights was with Frontier from $98. The cheapest one-way flight was with Frontier from $41.

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

The cheapest United flight from Chicago to Denver is $193, flying from Mar 5 to Mar 9.
The cheapest Southwest flight from Chicago to Denver is $177, flying from Mar 5 to Mar 9.
The cheapest American flight from Chicago to Denver is $187, flying from Feb 28 to Mar 2.
The cheapest Delta flight from Chicago to Denver is $211, flying from Apr 17 to Apr 20.
The cheapest Frontier flight from Chicago to Denver is $98, flying from Mar 12 to Mar 15.
The cheapest Alaska flight from Chicago to Denver is $293, flying from Apr 16 to Apr 20.

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

There are 63 United direct flights from Chicago to Denver per week. Flights are available every day.
There are 32 Southwest direct flights from Chicago to Denver per week. Flights are available every day.
There are 20 American direct flights from Chicago to Denver per week. Flights are available every day.
There are 3 Frontier direct flights from Chicago to Denver per week. Flights are available on Thursday, Friday and Sunday.

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

The cheapest last-minute deal between Chicago and Denver at price $250 is offered by Frontier from Sat, Jan 24 to Sun, Jan 25.

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

There are 63 United direct flights from Chicago to Denver per week. Flights are available every day.
There are 32 Southwest direct flights from Chicago to Denver per week. Flights are available every day.
There are 20 American direct flights from Chicago to Denver per week. Flights are available every day.
There are 3 Frontier direct flights from Chicago to Denver per week. Flights are available on Thursday, Friday and Sunday.

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

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

The cheapest direct (nonstop) round-trip flights between Chicago and Denver start at $98 from Thu, Mar 12 to Sun, Mar 15 with Frontier.

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.

The cheapest business class round-trip flights between Chicago and Denver start at $463 from Thu, Mar 5 to Mon, Mar 9 with United.

The cheapest economy class round-trip flights between Chicago and Denver start at $98 from Thu, Mar 12 to Sun, Mar 15.

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.

The best last-minute getaway deal for the next weekend between Chicago and Denver starts at $250 from Sat, Jan 24 to Sun, Jan 25 with Frontier.

The cheapest last-minute deal between Chicago and Denver at price $250 is offered by Frontier from Sat, Jan 24 to Sun, Jan 25.

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.