Colorado Springs (COS) to Chicago (ORD): On-Time Performance
Data through July 2026
The calendar drives reliability on COS–ORD. September 2024 flights landed on schedule 100% of the time, but March 2026 dropped to 61% — a gap of 39 points. Across the full period the route averages 80% on-time against a national 78%.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 23 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 2.7
- last 12 months
- Duration
- 2h 47m
- scheduled
- Distance
- 911 mi
Best airline from COS to ORD
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 82% | 14 min | 1.6% | 319 |
| SkyWest Airlines | 79% | 25 min | 1.3% | 1,445 |
Monthly on-time trend
Best time to fly from COS to ORD
Aim for departures around 5 a.m. (91% on-time); avoid 12 p.m. departures (74%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 22 min |
| Tuesday | 80% | 17 min |
| Wednesday | 80% | 24 min |
| Thursday | 83% | 19 min |
| Friday | 77% | 21 min |
| Saturdaybest | 84% | 24 min |
| Sunday | 78% | 35 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft27%
- Airline operations46%
- National airspace system19%
- Weather7%
Frequently asked questions
- How often are flights from COS to ORD delayed?
- 20% of COS–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 23 minutes.
- Which airline is most reliable from COS to ORD?
- United Airlines has the best on-time record on this route at 82%, based on 319 flights. 2 airlines flew COS–ORD frequently enough to compare in this period.
- What is the best time of day to fly from COS to ORD?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 12 p.m. have the worst (74%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from COS to ORD?
- The scheduled COS–ORD flight time averages 2h 47m over 911 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are COS to ORD flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from COS to ORD?
- March 2026 was the roughest month in this dataset, with only 61% of arrivals on time. The best was September 2024 at 100%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 1,764 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.