Denver to Chicago (DEN–ORD) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
DEN–ORD is served by 8 airlines with nonstop service. United Airlines, American Airlines and Frontier lead the route. The flight covers 886 miles in approximately 2h 43m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, CM, EK, LX, OS, SN, TK | 112 | 32Q, 739, 7M9, A21N | 2h09-2h45 | Star Alliance | AC, CM, EK, LX, OS, SN, TK | |
| AA American Airlines Also: AY, BA, CX, EI, GF, IB, JL, QR, RJ | 63 | 319, 321, 738, E75 | 2h22-2h59 | Oneworld | AY, BA, CX, EI, GF, IB, JL, QR, RJ | |
| F9 Frontier Also: Y4 | 12 | 321, A20N | 2h36-2h41 | – | Y4 | |
| SY Sun Country Airlines | 2 | – | – | – | – | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – | |
| KG Key Lime Air | 0 | – | – | – | – | |
| OO SkyWest Airlines | 0 | – | – | – | – | |
| WN Southwest Airlines | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Chicago from Denver
| Metric | DEN→ORD | BJC→ORD | COS→ORD |
|---|---|---|---|
| Distance from DEN | – | 24 mi | 73 mi |
| Nonstop airlines | 8 | 1 | 5 |
| Weekly flights | 492 | – | 39 |
| Flight time | 2h 43m | 2h | 2h 49m |
| Departure OTP | 91% | – | – |
Travel Essentials
DEN: MDT · ORD: CDT
When it's 6:00 PM in Denver, it's 7:00 PM in Chicago.
RTD A Line commuter rail runs from Denver Union Station to the airport (37 min, $10.50). Trains depart every 15 minutes during peak hours. The airport is 25 miles northeast of downtown; ride-shares cost $35–55 and take 30–45 minutes depending on I-70 traffic.Economy parking in lots 4–6 connects via free shuttle. Mountain shuttle services depart from Jeppesen Terminal's Ground Transportation level.
CTA Blue Line runs 24/7 from O'Hare to downtown Chicago (45 min, $5). Taxis use a flat-rate zone system; downtown is around $40–45 plus tip. Ride-shares are typically $30–50.The Airport Transit System (ATS) connects all terminals and parking. Metra commuter rail does not serve O'Hare directly; transfer downtown via Blue Line.
Continental climate with four distinct seasons. Summers are warm and humid (25–32°C) with afternoon thunderstorms. Winters are cold (−10 to −2°C) with heavy snowfall that regularly delays flights December through March.
Spring and fall are mild but unpredictable. Pack layers. Lake Michigan moderates temperatures near the lakefront, but O'Hare sits inland and runs colder.
DEN–ORD Quick Facts
Frequently Asked Questions
Denver to Chicago O'Hare: Midwest Hub Connector
DEN-ORD is a high-frequency 920-mile corridor linking two of the country's largest hub airports. United operates the most capacity, running 6-10 daily departures between its Denver and Chicago hubs. American, Southwest, Frontier, and Spirit add competitive seats. Combined daily departures run 18-24. Block time is 2 hours 15 minutes eastbound and 2 hours 30 minutes westbound against prevailing headwinds. The route carries significant connecting passenger volume at both ends, with Denver feeding the western mountain and inter-mountain states to O'Hare's transatlantic and midwest network. Business travelers on the DEN-ORD segment include technology, energy, and financial sector employees with ties to both metro areas.
Winter Operations and Hub Context
Both airports rank in the top five for annual snow-related delays in the US. Denver's deicing infrastructure is large but tested during multi-hour snowstorms; O'Hare faces lake-effect and frontal systems independently. The overlap of bad weather at both ends in the same weather system is infrequent but when it occurs, the DEN-ORD segment sees compounded delays. United's hub scheduling at both ends means DEN-ORD departures align to connection banks, with early morning and early evening departures carrying the heaviest connecting loads. Denver International connects to the downtown Union Station via the University of Colorado A Line rail in 37 minutes.