Cheap flights from Chicago (CHI) to Denver (DEN)

CHI — DEN
Feb 7 — Feb 141

The best prices from Chicago to Denver Intl are usually found in January or February, booked 39 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from Chicago (CHI) to Denver (DEN)

All the information you need to plan the best CHI to DEN flight in 2023: compare Chicago to Denver flight prices with the expected peak season, weather and rainfall in Denver.

CHI - DEN

Price

$177 - $362

DEN

Temperature

30.2 - 73.4 °F

DEN

Rainfall

0.5 - 2.3 inches

Popular inJulyHigh demand for flights, 31% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 30% potential price drop
Round-trip from$177From Chicago (CHI) to Denver Intl
One-way from$65One-way flight from Chicago (CHI) to Denver Intl

What is the cheapest day to fly round-trip from Chicago to Denver?

Travelers have found that booking a Monday departure is the best way to save up to 17% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Chicago to Denver?

To save up to 25% on this flight, we recommend booking at least 25 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago to Denver from $264 1-2 weeks out and tickets from $326 for flights departing within the next 72 hours.

What is the cheapest month to fly from Chicago to Denver?

Our data shows that January tends to be the cheapest month to fly to Denver from Chicago. Users have commonly found prices around $251 for the month, but tickets can be as low as $104. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Chicago to Denver (CHI - DEN)?

A simple way to save on the total cost of your ticket is to fly from Chicago to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 29% on your trip compared to booking a flight at noon.

Cheap flights from Chicago to Denver in February, March 2023

The best prices found for CHI to DEN flights for February, March
Mar 1 - Mar 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$40

Frontier

Pick Dates

Deal found 1/30

Mar 1 - Mar 4
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$45

Frontier

Pick Dates

Deal found 1/31

Feb 7 - Feb 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$48

Frontier

Pick Dates

Deal found 1/31

Chicago to Denver 2023 flight deals

Cheap flights to Denver from Chicago found for this year
Mar 1 - Mar 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$40

Frontier

Pick Dates

Deal found 1/30

Mar 1 - Mar 4
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$45

Frontier

Pick Dates

Deal found 1/31

Feb 7 - Feb 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$48

Frontier

Pick Dates

Deal found 1/31

Cheap Frontier flights from Chicago to Denver

Mar 1 - Mar 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$40

Frontier

Pick Dates

Deal found 1/30

Mar 1 - Mar 4
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$45

Frontier

Pick Dates

Deal found 1/31

Feb 7 - Feb 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$48

Frontier

Pick Dates

Deal found 1/31

  • One of the most popular airlines traveling from Chicago to Denver is Frontier. Flights from Frontier traveling this route typically cost $325.95 RT. This price is typically 12% cheaper than other airlines that offer Chicago to Denver flights. When booking this route, the cheapest RT price found was $147. Chicago O'Hare Intl Airport is the most common Chicago airport to take off from when flying to Denver. Denver Intl Airport is the most popular arrival airport in Denver. When flying from Chicago to Denver, Frontier flights are 49% more popular than any other airline flying that same route.

Cheap Spirit Airlines flights from Chicago to Denver

Mar 1 - Mar 8
ORD

Chicago O'Hare Intl

DEN

Denver Intl

1 stop

6h 14m
DEN

Denver Intl

ORD

Chicago O'Hare Intl

1 stop

6h 00m
$131

Spirit Airlines

Pick Dates

Deal found 2/1

Feb 28 - Mar 8
ORD

Chicago O'Hare Intl

DEN

Denver Intl

1 stop

8h 08m
DEN

Denver Intl

ORD

Chicago O'Hare Intl

1 stop

7h 50m
$132

Spirit Airlines

Pick Dates

Deal found 2/1

Feb 22 - Mar 1
ORD

Chicago O'Hare Intl

DEN

Denver Intl

1 stop

6h 14m
DEN

Denver Intl

ORD

Chicago O'Hare Intl

1 stop

13h 38m
$137

Spirit Airlines

Pick Dates

Deal found 2/1

  • If you’re traveling from Chicago to Denver, one of the more common airlines traveling that route is Spirit Airlines. Chicago to Denver flights are typically 43% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $305.45 RT. The cheapest Spirit Airlines flight found for this route was $137. When traveling from Chicago to Denver on Spirit Airlines, the most popular airport to depart from is Chicago O'Hare Intl Airport and the most popular airport to arrive at is Denver Intl Airport. When flying from Chicago to Denver, Spirit Airlines flights are 45% more popular than any other airline flying that same route.

Non-stop flights to Denver from Chicago

Save time with Chicago to Denver direct flight deals
Mar 1 - Mar 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$40

Frontier

Pick Dates

Deal found 1/30

Mar 1 - Mar 4
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$45

Frontier

Pick Dates

Deal found 1/31

Feb 25 - Mar 1
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$50

Frontier

Pick Dates

Deal found 1/31

Last minute flights from Chicago to Denver

Late deals on return flights to Denver from Chicago, departing today and this week
Feb 7 - Feb 8
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$48

Frontier

Pick Dates

Deal found 1/31

Feb 8 - Feb 15
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$57

Frontier

Pick Dates

Deal found 1/30

Feb 8 - Feb 11
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
DEN

Denver Intl

MDW

Chicago Midway

Nonstop

2h 20m
$58

Frontier

Pick Dates

Deal found 2/1

One-way flights to Denver from Chicago

The cheapest one-way flights from Chicago to Denver
Feb 28
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
$21

Frontier

Pick Dates

Deal found 1/30

Mar 1
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
$24

Frontier

Pick Dates

Deal found 1/30

Mar 7
MDW

Chicago Midway

DEN

Denver Intl

Nonstop

2h 48m
$31

Frontier

Pick Dates

Deal found 1/31

Reviews of Airlines Servicing Denver

Delta
7.9
Good
2,046 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I paid for premium seating. There are no premium seating on this flight. Complete ripoff

Delta
7.9
Good
2,046 reviews
Delta
7.9
Good
2,046 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I paid for premium seating. There are no premium seating on this flight. Complete ripoff

United Airlines
7.6
Good
1,184 reviews
Delta
7.9
Good
2,046 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I paid for premium seating. There are no premium seating on this flight. Complete ripoff

American Airlines
7.4
Good
1,668 reviews
Delta
7.9
Good
2,046 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I paid for premium seating. There are no premium seating on this flight. Complete ripoff

Spirit Airlines
6.9
Okay
716 reviews
Delta
7.9
Good
2,046 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I paid for premium seating. There are no premium seating on this flight. Complete ripoff

Frontier
6.1
Okay
537 reviews
Delta
7.9
Good
2,046 reviews

Crew

8.5

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.0

Overall

7.9

Reviews

1 / 10

I paid for premium seating. There are no premium seating on this flight. Complete ripoff

Related info for your journey

Useful info, stats and facts about Chicago to Denver flights.

What airport do you fly into for flights to Denver from Chicago?

Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly into when you book flights from Chicago to Denver. 9 airlines have flights to Denver Intl from Chicago on a regular basis. Booking flights from Chicago to Denver Intl should not be difficult; the airport handles an average of 43 inbound flights from Chicago per day.

Which airlines flying from Chicago to Denver Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Chicago to Denver Intl that may be offering flexible cancellation policies are United Airlines, American Airlines, and Frontier. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Chicago to Denver for under $100 on Cheapflights?

Yes, there are multiple flights from Chicago to Denver for under $100. The cheapest flight booked recently is on Frontier for just $40, but on average you can expect to pay $67.

Are there nonstop flights from Chicago to Denver for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to Denver under $100. A good price for a nonstop flight from Chicago to Denver is less than $68.

Are there last-minute flights available from Chicago to Denver for under $100?

There are currently 20+ open flights from Chicago to Denver within the next 7 days for less than $100.

What days are nonstop flights available from Chicago to Denver?

Nonstop flights are available for this route on the following days: Sunday, Monday, Thursday, Friday, Saturday.

How many flights depart from Chicago to Denver on average per day?

37 flight departures from Chicago to Denver per day on average.
Early Morning (Midnight to 6am) - 3% of flight departures
Morning (6am - Noon) - 32% of flight departures
Afternoon (Noon - 6pm) - 46% of flight departures
Evening (6pm - Midnight) - 19% of flight departures

How long is the flight from Chicago to Denver?

A quick flight from Chicago to Denver can take about 2h 48m. Frontier provides one of the quickest options available for as low as $40. There are 891 mi between Chicago and Denver. Generally, flights for this route are nonstop.

What is the cheapest airline to fly from Chicago to Denver round-trip?

Frontier, at $40, was found to be the cheapest airline from Chicago to Denver.. Users have found that Frontier is 84% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Chicago to Denver one-way?

One-way options have recently been found by users for as low as $21 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $64 and United Airlines from $69 one-way.

What are the most popular airlines that fly from Chicago to Denver?

The most popular airlines flying from Chicago to Denver are Undisclosed Carrier, American Airlines and Delta. Something to consider prior to booking your flight.

What are the most reliable airlines from Chicago to Denver?

The top 3 most reliable airlines when flying from Chicago to Denver are British Airways (100%), SWISS (87%) and United Airlines (85%).

What are the cheapest flights from Chicago to Denver?

Looking at all options, your cheapest flight can be booked for $79. While the most popular route (Chicago O'Hare Intl - Denver Intl) can be booked for $121 on average our data indicates $544 when flying from Chicago to Denver.

Alternative routes for Chicago to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Chicago to Denver

The chart below displays the airlines Cheapflights users traveling from Chicago to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapest$14Average$22FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
FrontierCheapest$68Average$184FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search Frontier flights
Spirit AirlinesCheapest$96Average$194FlexibilityNo cancel feeOn-time65%COVID-19 safety
Search Spirit Airlines flights
Denver Air ConnectionCheapest$122Average$261FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Denver Air Connection flights
American AirlinesCheapest$137Average$305FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$139Average$320FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
United AirlinesCheapest$147Average$326FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights

Hourly flight availability from Chicago to Denver

See what time of day planes typically take off from Chicago to Denver
6%of flight departuresEarly morningMidnight to 6 am
26%of flight departuresMorning6 am to noon
40%of flight departuresAfternoonNoon to 6 pm
28%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Chicago to Denver

See how many times per day planes take to the skies headed from Chicago to Denver
Sunday23daily flights
Monday56daily flights
Tuesday52daily flights
Wednesday55daily flights
Thursday48daily flights
Friday46daily flights
Saturday21daily flights
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