Colorado Springs (COS) to Chicago (ORD): On-Time Performance
Data through May 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 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 2.7
- last 12 months
- Duration
- 2h 46m
- scheduled
- Distance
- 911 mi
Best airline from COS to ORD
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 83% | 12 min | 0.8% | 258 |
| SkyWest Airlines | 80% | 24 min | 0.9% | 1,383 |
Monthly on-time trend
Best time to fly from COS to ORD
Aim for departures around 6 a.m. (90% on-time); avoid 12 p.m. departures (76%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 18 min |
| Tuesday | 80% | 17 min |
| Wednesday | 81% | 24 min |
| Thursday | 83% | 18 min |
| Friday | 78% | 20 min |
| Saturdaybest | 86% | 22 min |
| Sunday | 79% | 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 aircraft30%
- Airline operations47%
- National airspace system19%
- Weather4%
Frequently asked questions
- How often are flights from COS to ORD delayed?
- 19% of COS–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 22 minutes.
- Which airline is most reliable from COS to ORD?
- United Airlines has the best on-time record on this route at 83%, based on 258 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 6 a.m. have the best record (90% on-time), while departures around 12 p.m. have the worst (76%). 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 46m over 911 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are COS to ORD flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, 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 1,641 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.