Chicago to Denver (ORD–DEN) — Airlines, Schedules & Connections
Flight Schedule
109 flights
Verified 1h ago
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No flights match your filters.
No nonstop flights on this route. connecting options below.
✦ 1-Stop Connections
→
Separate tickets — book each leg independently. Collect and recheck bags at .
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✧ 2-Stop Connections
Separate tickets — book each leg independently. Collect and recheck bags at each hub.
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Chicago to Denver
12 carriers, 330 flights/week nonstop.
12 Airlines
330 Flights/wk
886 mi
2h 23m nonstop
-1h behind
166 1-stop hubs
ORD–DEN is served by 12 airlines with nonstop service. United Airlines, American Airlines and Iberia lead the route. The flight covers 886 miles in approximately 2h 23m. Beyond nonstop, 166 hubs offer 1-stop connections.
Carriers on this route
Airline Landscape
All carriers operating nonstop ORD–DEN service, compared side by side.
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 109 | 32Q, 739, 777, A21N | 2h23-3h12 | Star Alliance | – | |
| AA American Airlines | 56 | 319, 321, 738, E70, E75 | 2h43-2h59 | Oneworld | – | |
| IB Iberia | 52 | 319, 738, E70, E75 | 2h43-2h59 | Oneworld | – | |
| AC Air Canada | 49 | 32Q, 739, A21N, B39M | 2h51-2h58 | Star Alliance | – | |
| CM Copa Airlines | 14 | A21N | 2h58 | Star Alliance | – | |
| EI Aer Lingus | 14 | 738, E75 | 2h52-2h57 | – | – | |
| WN Southwest Airlines | 14 | 73H, 7M8 | 2h45-2h50 | – | – | |
| BA British Airways | 8 | 319, 321 | 2h50-2h56 | Oneworld | – | |
| F9 Frontier | 7 | A21N | 2h59 | – | – | |
| GF Gulf Air | 7 | 738 | 2h52 | – | – | |
| KG Key Lime Air | 1 | – | – | – | – | |
| OO SkyWest Airlines | 1 | – | – | – | – |
Aircraft on this route
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule
Weekly Schedule Pattern
Nonstop flight frequency by day of week, ORD to DEN direction.
Mon
49
flights
Tue
50
flights
Wed
48
flights
Thu
46
flights
Fri
46
flights
Sat
44
flights
Sun
47
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
57
Nonstop flights
330
Outbound / wk
319
Return / wk
Connections
Connection Landscape
Beyond nonstop. 1-stop and 2-stop options for ORD to DEN.
1-STOP
One-Stop Connections
166
Hubs
~4h
Fastest
~34h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
6,336
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability
On-Time Performance
What to expect at each end of your journey.
Outbound
ORD → DEN
68%
Moderate delays possible. Allow buffer time.
Departing
68%
Arriving
100%
Return
DEN → ORD
90%
Generally reliable. Most flights run on time.
Departing
90%
Arriving
97%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots.
ORD delays → DEN delays →
Alternatives
Other ways to reach Denver from Chicago
Nearby airports with service to Denver International Airport.
| Metric | ORD→DEN | MDW→DEN | RFD→DEN |
|---|---|---|---|
| Distance from ORD | – | 15 mi | 63 mi |
| Nonstop airlines | 12 | 3 | 1 |
| Weekly flights | 330 | 78 | – |
| Flight time | 2h 23m | 2h 24m | 2h 38m |
| Departure OTP | 68% | – | – |
Chicago (MDW) to Denver flights · Chicago/Rockford (RFD) to Denver flights · Milwaukee (MKE) to Denver flights
Airports within 200 miles of ORD with service to Denver International Airport.
Know before you go
Travel Essentials
Practical planning for this route.
Time Difference
-1h
Denver is 1 hour
behind
Chicago.
ORD: CDT · DEN: MDT
When it's 6:00 PM in Chicago, it's 5:00 PM in Denver.
ORD: CDT · DEN: MDT
When it's 6:00 PM in Chicago, it's 5:00 PM in Denver.
Distance & Flight Time
886 mi / 1,426 km
Nonstop flight time is approximately 2h 23m to 3h 12m.
Getting to ORD
CTA Blue Line runs 24/7 from downtown Loop stations to O'Hare (45 min, $5). Pace buses serve suburbs. Ride-shares cost $35–55 from downtown depending on traffic; add 30+ minutes during rush hour on the Kennedy Expressway.Economy parking lots E/F connect via ATS people mover. Terminal 5 (international) is separate from Terminals 1–3; allow extra time for inter-terminal transfers.
Getting from DEN
RTD A Line runs to Denver Union Station (37 min, $10.50) with connections to light rail and bus routes. Taxis have meters; expect $55–65 to downtown.DEN's tent-roof Jeppesen Terminal is a single building; all three concourses connect via the underground automated train. Rental cars are on level 5. For ski resorts, shuttle services depart from Ground Transportation.
Denver Climate
Semi-arid with 300+ days of sunshine. Summers are dry and warm (27–34°C) with afternoon thunderstorms that produce dramatic but brief delays. Winters bring cold temperatures (−8 to 5°C) and heavy blizzards that can shut down ground operations.
Spring snowstorms can be heavier than midwinter ones. Altitude (5,430 ft) means low humidity year-round; stay hydrated.
Facts
ORD–DEN Quick Facts
Key statistics for the Chicago to Denver route.
Route details
Distance886 mi / 1,426 km
Flight time2h 23m to 3h 12m
Time difference-1 hour
Airlines (nonstop)12
Weekly flights330 out / 319 return
1-stop connections166 hubs
Origin: ORD
Full nameChicago O'Hare International Airport
IATA / ICAOORD / KORD
TimezoneAmerica/Chicago
Passengers/yr80.0M
Elevation680 ft / 207 m
Destination: DEN
Full nameDenver International Airport
IATA / ICAODEN / KDEN
TimezoneAmerica/Denver
Passengers/yr82.4M
Elevation5,431 ft / 1,655 m
FAQ
Frequently Asked Questions
Common questions about ORD to DEN flights.
Nonstop flights from Chicago O'Hare International Airport to Denver International Airport take approximately 2h 23m to 3h 12m. The route covers 886 miles.
12 airlines operate nonstop service: American Airlines, Air Canada, British Airways, Copa Airlines, Aer Lingus, Frontier, Gulf Air, Iberia, Key Lime Air, SkyWest Airlines, United Airlines and Southwest Airlines.
There are approximately 330 nonstop flights per week from ORD to DEN. The return direction has about 319 weekly flights.
Yes, 1-stop connections are available through GRB, RIL, DLH, IAB, RFD, MKC, XWA, MCN, SCF, MMU, GJT, LCQ, HPN, SAF, GNV, BFI, LGB, ILM, HOU, PVD, STS, JLN, CZM, PNS, ECP, PVR, BIS, SJD, EGE, YUL, CUN, ASE, SLN, DCA, HDN, SUX, FCA, SUN, MSN, MLI, JFK, MSO, STL, LEX, DAY, TUL, MCI, PIT, OMA, COS, DSM, RDU, ABQ, GDL, MEM, ATL, CID, ICT, MKE, PIA, CLE, AUS, DFW, OKC, ONT, IAH, GRR, MSP, RAP, FSD, CMH, IND, LAS, SAT, YYC, BHM, SGF, TUS, JAC, JAX, DTW, SLC, PHX, ELP, BNA, CVG, CLT, FAR, SDF, MSY, MIA, ATW, MDW, MTY, XNA, EWR, SFO, PDX, BWI, LAX, LIT, PHL, COU, GEG, LNK, BDL, BUF, PSP, KOA, DAL, SEA, RIC, YYZ, MCO, SJC, RSW, NAS, SMF, SYR, BZN, TPA, SAN, BOS, LGA, SBN, BOI, ALB, IAD, RNO, LHR, ORF, HSV, TYS, SRQ, OGG, SNA, GSP, ANC, AVL, LIR, CHS, FRA, HNL, PBI, MUC, MAF, FLL, SAV, GUC, KEF, MTJ, YWG, SBA, HND, SJO, NRT, MEX, SHV, GCM, YVR, PTY, SJU, BZE, MBJ, PUJ and IST. These options provide additional schedule flexibility.
Denver is 1 hour behind Chicago.
Yes, return flights from DEN to ORD are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.
Denver International has a single Jeppesen Terminal with three concourses (A, B, C) connected by an underground train. United operates from Concourse B, while Southwest uses Concourse C, and American uses Concourse A. The train ride between the terminal and Concourse B takes three minutes.
Denver's elevation of 5,430 feet reduces air density, which limits aircraft takeoff performance, particularly in summer when hot temperatures compound the density altitude effect. Airlines routinely implement weight-and-balance adjustments and may reduce passenger or cargo loads on hot summer days. This rarely causes cancellations but can affect baggage allowances.
Both airports are among the most winter-delay-prone in the US. O'Hare is affected by Great Lakes snowstorms, and Denver sits at the edge of the Rocky Mountain snow belt where blizzards can close DEN for 12–24 hours. Ground stops at either end can cascade into delays of several hours. The February 2021 and December 2022 storm events are recent examples affecting both airports simultaneously.
Chicago O'Hare to Denver: Midwest to Mountain West Connection
The Chicago–Denver corridor links two of the country's major aviation hubs across the Great Plains, serving a mix of business travelers, ski season leisure passengers, and connecting traffic moving between United's ORD and DEN hub complexes. Seven carriers operate 257 weekly departures, with United holding the dominant schedule position as the hub carrier at both airports. Southwest provides significant low-fare competition with its large DEN operation.
Denver as a Mountain West Hub
Denver International is the primary gateway to the Colorado ski resorts and a hub for United's transcontinental network. Chicago passengers transiting Denver can connect to Aspen, Eagle, Telluride, and Jackson Hole. None of those are served directly from O'Hare. DEN's single-terminal design with three concourses is compact enough that domestic connection times of 40–50 minutes are generally adequate.