Route on-time record

DEN to ORD: most on-time flights and the best time to fly

Denver (Denver International Airport) to Chicago (Chicago O'Hare International Airport). 6,192 nonstop flights in Jun 2025 to May 2026, 70% arrived within 15 minutes and 1.0% were cancelled. The most reliable flight number was American 2082 at 6:19 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

DEN → ORD

Denver to Chicago: 6,192 nonstop flights a year

On time (12 months)

70%

Cancelled

1.0%

avg delay 26 min

Best time to leave

Before 9 AM

87% on time vs 57% 3 to 6 PM

Most reliable airline

Envoy

71% chance on time

Check DEN to ORD fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

#1 · American 2082
6:19 AM → 9:55 AM2h 36m nonstop
Local times, typical schedule. Last flown 2026-05-20.
87%
chance on time
On time (history)
93%
Cancelled
2.3%
Avg arrival delay
3 min
- Arrived on time 93% of the time (43 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 57%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- Short track record (43 flights), so its score leans on the airline's record at this hour.
Limited track record · 43 flights
Find American 2082 fares Opens this date on Aviasales
#2 · United 1377
6:00 AM → 9:38 AM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
On time (history)
88%
Cancelled
1.1%
Avg arrival delay
11 min
- Arrived on time 88% of the time (358 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 57%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 358 flights
Find United 1377 fares Opens this date on Aviasales
#3 · American 2771
7:36 AM → 11:12 AM2h 37m nonstop
Local times, typical schedule. Last flown 2026-05-31.
85%
chance on time
On time (history)
87%
Cancelled
1.5%
Avg arrival delay
13 min
- Arrived on time 87% of the time (320 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 57%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 320 flights
Find American 2771 fares Opens this date on Aviasales
#4 · United 2430
7:45 AM → 11:23 AM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1928; its record covers all of them.
84%
chance on time
On time (history)
86%
Cancelled
0.5%
Avg arrival delay
9 min
- Arrived on time 86% of the time (210 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 57%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 210 flights
Find United 2430 fares Opens this date on Aviasales
#5 · United 2329
9:35 AM → 1:15 PM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
On time (history)
82%
Cancelled
1.1%
Avg arrival delay
15 min
- Arrived on time 82% of the time (360 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Strong track record · 360 flights
Find United 2329 fares Opens this date on Aviasales
#6 · United 1131
7:32 AM → 11:10 AM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
On time (history)
78%
Cancelled
0.0%
Avg arrival delay
6 min
- Arrived on time 78% of the time (32 flights, Jun 2025 to May 2026).
- Never cancelled in 32 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 87% on time; 3 to 6 PM: 57%).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
Limited track record · 32 flights
Find United 1131 fares Opens this date on Aviasales
#7 · Envoy 3544 · sold as American Eagle
9:17 AM → 12:53 PM2h 36m nonstop
Local times, typical schedule. Last flown 2026-04-06.
79%
chance on time
On time (history)
79%
Cancelled
3.3%
Avg arrival delay
12 min
- Arrived on time 79% of the time (28 flights, Jun 2025 to May 2026).
- Cancelled 3.3% of the time (1 of 30).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- Short track record (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find 9:17 AM flight fares Opens this date on Aviasales
#8 · Envoy 4312 · sold as American Eagle
12:20 PM → 3:56 PM2h 36m nonstop
Local times, typical schedule. Last flown 2026-04-04.
78%
chance on time
On time (history)
100%
Cancelled
0.0%
Avg arrival delay
0 min
- Arrived on time 100% of the time (8 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- Lands inside ORD's trouble window: 44% of its 243 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (8 flights), so its score leans on the airline's record at this hour.
Limited track record · 8 flights
Find 12:20 PM flight fares Opens this date on Aviasales
#9 · United 1430
9:05 PM → 12:44 AM2h 39m nonstop
Local times, typical schedule. Last flown 2026-05-31.
78%
chance on time
On time (history)
91%
Cancelled
0.0%
Avg arrival delay
3 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 1430 fares Opens this date on Aviasales
#10 · United 297
9:20 PM → 12:58 AM2h 38m nonstop
Local times, typical schedule. Last flown 2026-05-20.
78%
chance on time
On time (history)
86%
Cancelled
0.0%
Avg arrival delay
9 min
- Arrived on time 86% of the time (21 flights, Jun 2025 to May 2026).
- Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).
- Short track record (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find United 297 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

Envoy Air (sold as American Eagle)71%
125 flights · 74% on time as flown · 0.9% cancel
American Airlines71%
1,469 flights · 72% on time as flown · 1.8% cancel
United Airlines71%
3,701 flights · 71% on time as flown · 0.7% cancel
Frontier Airlines68%
328 flights · 68% on time as flown · 0.9% cancel
Southwest Airlines63%
569 flights · 60% on time as flown · 0.6% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

Before 9 AM87%
1,252 flights · avg delay 11 min
9 AM to noon76%
1,274 flights · avg delay 20 min
Noon to 3 PM66%
1,215 flights · avg delay 30 min
3 to 6 PM57%
1,373 flights · avg delay 42 min
6 to 9 PM65%
1,024 flights · avg delay 30 min

Best day: Wednesday (77%). Worst: Sunday (71%).

Smarter routing

Nearby airports that run more on time

DEN → MDW 72% chance on time
Denver International Airport to Chicago Midway International Airport · 2,385 flights a year · 15 mi from your airports · yours: 70%
Rank flights Fares

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

What delays this route

Late-arriving aircraft39%
Air traffic control and airport volume29%
Airline (crew, maintenance, boarding)27%
Severe weather5%

Share of delay minutes by the cause airlines report to the US DOT.

Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure

DEN to ORD questions

What time of day is best to fly DEN to ORD?: Before 9 AM: 87% of flights arrived on time, against 57% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from DEN to ORD?: Envoy, with a season-adjusted 71% chance of operating and arriving on time over 125 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on DEN to ORD?: July (63% on time); the best was September (82%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?: No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

More routes from DEN

Live status: FAA delays and ground stops

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