Cheap flights from Chicago to Denver

Chicago FSS
CHI
Denver
DEN

Flight deals from Chicago to Denver

Below you can see the best deals on flights Chicago — Denver for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 9 September, from $39.

Top 10 cheap flights from Chicago to Denver

F9
$ 39

Chicago — Denver

14:41—16:45
2 Sep 2026
3 h 4 m
Direct flight
F9
$ 40

Chicago — Denver

14:41—16:45
1 Sep 2026
3 h 4 m
Direct flight
F9
$ 40

Chicago — Denver

06:30—08:15
14 Sep 2026
2 h 45 m
Direct flight
F9
$ 44

Chicago — Denver

06:30—08:15
12 Sep 2026
2 h 45 m
Direct flight
F9
$ 66

Chicago — Denver

06:30—08:15
9 Sep 2026
2 h 45 m
Direct flight
F9
F9
$ 75

Chicago — Denver

13:59—09:19
1 Sep 2026
20 h 20 m
1 stop
F9
F9
$ 75

Chicago — Denver

07:05—09:19
1 Sep 2026
27 h 14 m
1 stop
F9
F9
$ 78

Chicago — Denver

13:59—22:05
1 Sep 2026
9 h 6 m
1 stop
F9
F9
$ 78

Chicago — Denver

07:05—22:05
1 Sep 2026
16 h
1 stop
DL
F9
$ 79

Chicago — Denver

19:13—08:10
8 Sep 2026
13 h 57 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Chicago — Denver flight

Looking for cheap flights from Chicago to Denver? Compare fares from different airlines, check the flight schedule and travel time — and book your Chicago — Denver ticket online at the best price.

The route has direct flights — around 295 flights per week, flights are operated by United Airlines, American Airlines, Southwest Airlines, Frontier Airlines and 1 more airline, a nonstop flight takes about 2 h 42 min, the distance between the cities is around 1,481 km.

Planning your trip? You may find our Denver travel guide, how to get from the airport into town and Denver weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $39Min. price
SeptemberCheapest
MayPeak season
YesDirect flights
1,481 kmDistance
2 h 42 minTravel time
5Airlines
295 / wkFlights

Flight schedule from Chicago to Denver

The table shows direct flights from Chicago to Denver on the selected date. The flight takes approximately 2 h 42 min. Regular flights are operated by United Airlines, American Airlines, Southwest Airlines and Frontier Airlines. Departures from O'Hare International Airport, Chicago Midway International Airport and Midway International Airport airports, arrivals at Denver International Airport and Centennial Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 14 Aug 2026

Flight ticket prices by day: Chicago — Denver

Below is a calendar of the lowest flight ticket prices for Chicago — Denver by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $39 in September, and the most expensive are around $137 in May. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Chicago to Denver by month. Tickets are usually cheapest in January (around $123) and priciest in July (about $174) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$123lowMay$151mediumSep$127low
Feb$123lowJun$170highOct$127low
Mar$141mediumJul$174highNov$146medium
Apr$141mediumAug$165highDec$165high

Some values are estimated based on seasonality.

When to fly

Weather in Denver: it is warmest in July (up to 31 °C on average) and coolest in January (around 6 °C). The driest month is November.

Tickets are usually cheapest in September and most expensive in May. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Denver

Dry and wet days · Denver

Wind speed and direction · Denver

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How to get the best deal on a Chicago — Denver ticket

  • Book ahead: fares for Chicago — Denver are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Chicago is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to Denver is usually September — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Chicago — Denver route are operated by 5 airlines; United Airlines runs the most flights (around 56% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    55x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight ORD → DEN55x/week
      Duration
      2h 46m
      Days
      MTWTFSS
    55.9%Open →
  • American AirlinesAA
    16x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight ORD → DEN16x/week
      Duration
      2h 41m
      Days
      MTWTFSS
    16.6%Open →
  • Southwest AirlinesWN
    13x/week
    WebsiteFleet: 817140M pax/year
    • Direct flight MDW → DEN13x/week
      Duration
      2h 54m
      Days
      MTWTFSS
    13.6%Open →
  • Frontier AirlinesF9
    9x/week
    WebsiteFleet: 15329M pax/year
    • Direct flight ORD → DEN5x/week
    • Direct flight MDW → DEN4x/week
    8.8%Open →
  • VolarisY4
    5x/week
    WebsiteFleet: 15233.4M pax/year
    • Direct flight ORD → DEN5x/week
    5.1%Open →

Cities and airports on the Chicago — Denver route

Flights Chicago — Denver depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport and Chicago Rockford International Airport and arrive at Denver International Airport and Centennial Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Chicago

CHI
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Denver

DEN
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Chicago — Denver flight

How long is the flight from Chicago to Denver?

A nonstop Chicago — Denver flight takes about 2 h 42 min — the distance between the cities is around 1,481 km.

How far is it from Chicago to Denver?

The distance from Chicago to Denver is about 1,481 km, which a nonstop flight covers in around 2 h 42 min.

Are there direct flights from Chicago to Denver?

Yes, there are nonstop flights Chicago — Denver — around 295 flights per week.

Which airlines fly from Chicago to Denver?

Airlines operating Chicago — Denver include United Airlines, American Airlines, Southwest Airlines, Frontier Airlines, Volaris. See the full list with schedules in the "Airlines" section on this page.

Which airports do Chicago — Denver flights use?

Flights from Chicago depart from O'Hare International Airport, Chicago Midway International Airport, Midway International Airport, and arrive at Denver International Airport, Centennial Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Chicago to Denver?

The price of a Chicago — Denver ticket depends on your travel date, season and demand: it is usually cheapest to fly in September, and most expensive in May. Tickets typically cost between $39 and $137. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Chicago — Denver?

Flights Chicago — Denver are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is September. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Chicago to Denver?

To catch a low fare Chicago — Denver, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually September.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Chicago

See all
New York CityTorontoDetroitWashington, D.C.AtlantaMinneapolisLos AngelesSeattleBostonDallasHoustonOrlandoLondonNashvilleIndianapolisSan DiegoMontrealMilwaukeeSt. LouisCharlottePhiladelphiaColumbusKansas CityMiamiPhoenixLas VegasCincinnatiGrand RapidsDes MoinesRaleighSan FranciscoMadisonDaytonGreen BayTampaPittsburghLouisvilleKnoxvilleRochesterCleveland

Where else you can fly from Denver

See all
Los AngelesSeattlePhoenixNew York CitySalt Lake CitySan DiegoDallasLas VegasMinneapolisHoustonAtlantaPortlandAustinColorado SpringsSan FranciscoWashington, D.C.OrlandoKansas CityNashvilleSanta AnaDetroitOklahoma CityAspenRapid CityMiamiPhiladelphiaSacramentoAlbuquerqueSt. LouisBostonWichitaSan JoseBoiseMidlandCharlotteOmahaGrand JunctionSan AntonioTulsaLincoln

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