Direct (nonstop) flights from Chicago to Denver
4 airlines fly nonstop from Chicago O Hare International (ORD) to Denver International (DEN). It's 888 miles (1,429 km), about 2h 51m in the air. Operated by American Airlines, Frontier Airlines, United Airlines and others.
American Airlines
Frontier Airlines
United Airlines
Southwest Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
AA
American Airlines
F9
Frontier Airlines
UA
United Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Chicago to Denver with one stop · direct emits 164 kg CO₂ per passenger
Looking for the return flight?
DEN → ORD: Flights from Denver to ChicagoOther direct flights from Chicago
Direct flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Chicago to Denver?
A nonstop flight from Chicago (ORD) to Denver (DEN) takes approximately 2 hours and 51 minutes. The distance is 888 miles (1,429 km).
Which airlines fly nonstop from Chicago to Denver?
4 airlines: American Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
Is there a nonstop flight from Chicago to Denver?
Yes. 4 airlines: American Airlines, Frontier Airlines, United Airlines, Southwest Airlines.
How far is Chicago from Denver?
The flight distance from Chicago to Denver is 888 miles (1,429 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from Chicago to Denver?
At 2h 51m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Chicago to Denver?
Roughly 164 kg CO2 per passenger one-way. That's about the same as driving 820 km.
Is the return flight from Denver to Chicago also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Chicago to Denver?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Chicago O Hare International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.