Cheap Flights from Chicago to Denver from £15️ (CHI-DEN)

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Flights from Chicago to Denver Starting at £15

We've found these cheap flights for you. You can book one-way or return flight tickets.

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Chicago to Denver

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Chicago to Denver

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Sun Country Airlines

From £39

American Airlines

From £49

Southwest Airlines

From £58

Frontier Airlines

From £58

United Airlines

From £61

Delta Air Lines

From £62

Alaska Airlines

From £89

Key Lime Air

From £142

Spirit Airlines

From £161

ANA airlines

Find more flights and airlines

Alternative Routes from Chicago to Denver

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Chicago to Denver.

Cheapest
MDW
22:53
2h 48m
Direct
DEN
00:41
Midway International Airport - Denver International Airport
Thu, Apr 25Frontier Airlines
£15
ORD
18:27
2h 55m
Direct
DEN
20:22
O'Hare International Airport - Denver International Airport
Thu, May 2Frontier Airlines
£58
ORD
18:27
2h 55m
Direct
DEN
20:22
O'Hare International Airport - Denver International Airport
Thu, May 2Frontier Airlines
£58
Find More Flights

How do I find the cheapest flights?

When are flight tickets from Chicago (CHI) to Denver (DEN) the cheapest?
Airlines adjust prices for flights from Chicago to Denver based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Chicago (CHI) to Denver (DEN) cost?
According to Trip.com's data, the lowest price is around £134.
How long is the flight from Chicago (CHI) to Denver (DEN)?
It takes about 3 hours 15 minutes to fly from Chicago (CHI) to Denver (DEN).
What are the most popular airlines that fly from Chicago (CHI) to Denver (DEN)?
Airlines with flights from Chicago (CHI) to Denver (DEN): Southwest Airlines, United Airlines and Air Canada.
What's the most popular airline for direct flights from Chicago (CHI) to Denver (DEN)?
American Airlines operates 2 direct flights from Chicago (CHI) to Denver (DEN).
How many airports in Denver (DEN)?
There are 4 airport(s) in Denver (DEN): Denver Arapahoe County Airport, Denver Buckley Angb, Rocky Mountain Metropolitan Airport and Denver International Airport.

How to find a cheap flight from Chicago to Denver

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Chicago to Denver. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

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Look Out for Deals

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Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

Save up to £10 per person when booking your flights on Trip.com

Flight Information from Chicago to Denver

Cheapest direct flight price	£15
Cheapest return ticket price	£29
Cheapest month	April
Peak season for travel	October
Flight distance	1,446.63km
Average flight time	3 hours 15 minutes
Popular airline	Frontier Airlines