Cheap flights from Denver, CO to Chicago, IL
Flights starting at $34. Choose between United Airlines, Frontier Airlines, or Sun Country Airlines to find the best price.
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Cheapest one-way trip | $34 |
|---|---|
Cheapest round-trip | $62 |
Average round-trip | $71 |
Nonstop flights in April | $34 – $379 |
Most popular airline | United Airlines |
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One-way trips
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Book your trip to arrive at O Hare International, Chicago Midway International, or Chicago Rockford International. The distance between Denver and Chicago is 1438 km. The most popular airlines for this route are United Airlines, Frontier Airlines, and Sun Country Airlines. Denver and Chicago have 98 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from Denver to Chicago in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Sun 14.04 - Sat 20.04
| Airline | Sun 14.04 | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 |
|---|---|---|---|---|---|---|---|
| 4 | 7 | 7 | 7 | 3 | --- | 10 | |
| 3 | 2 | 3 | 2 | 3 | 1 | 3 |
Weekly direct flights for Sun 21.04 - Sat 27.04
| Airline | Sun 21.04 | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 |
|---|---|---|---|---|---|---|---|
| --- | --- | 7 | 9 | --- | --- | 10 | |
| 2 | 2 | 3 | 2 | 3 | 2 | 3 |
Weekly direct flights for Sun 28.04 - Sat 04.05
| Airline | Sun 28.04 | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 |
|---|---|---|---|---|---|---|---|
| --- | --- | 8 | 8 | 3 | 4 | 8 | |
| 3 | 2 | 3 | 2 | 3 | 2 | 3 |
Weekly direct flights for Sun 05.05 - Sat 11.05
| Airline | Sun 05.05 | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 |
|---|---|---|---|---|---|---|---|
| 4 | 4 | 8 | 7 | 4 | 4 | 7 | |
| 3 | 2 | 3 | 2 | 3 | 2 | 3 |
Check-in for a flight from Denver to Chicago
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| United Airlines | UAL | UA | Yes | No |
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
| Sun Country Airlines | SCX | SY | Yes | No |
Weather in Chicago
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 0°C | -6°C |
| February | 0°C | -5°C |
| March | 6°C | 0°C |
| April | 10°C | 4°C |
| May | 17°C | 10°C |
| June | 22°C | 16°C |
| July | 25°C | 20°C |
| August | 25°C | 19°C |
| September | 22°C | 16°C |
| October | 15°C | 10°C |
| November | 8°C | 3°C |
| December | 2°C | -1°C |
14 day forecast
Frequently asked questions
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