COS to ORD flight delays & on-time performance
Nonstop flights from City of Colorado Springs Municipal Airport to Chicago O'Hare International Airport · 911 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at COS or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Colorado Springs (COS) to Chicago (ORD) arrived on time 75% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 2.1% were cancelled, and 12% arrived an hour or more late.
- United Airlines was the most punctual airline here (81% on time); SkyWest Airlines was the least (74%).
- Departures scheduled around 5am did best (91% on time); around 1pm did worst (53%).
- Saturday was the most reliable day to fly (84% on time) and Sunday the least (69%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (48%).
Which airline is most on time from COS to ORD?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 81% | 2.2% | 14 min | 6.9% | 180 |
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 74% | 2.1% | 34 min | 13.6% | 821 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am91%37 flights
- 6am89%157 flights
- 9am80%88 flights
- 11am78%127 flights
- 12pm70%558 flights
- 1pm53%31 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday71%1.4% cancelled
- Tuesday78%0.7% cancelled
- Wednesday77%2.1% cancelled
- Thursday77%2.1% cancelled
- Friday72%2.7% cancelled
- Saturday84%4.2% cancelled
- Sunday69%1.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)48%
- Late-arriving aircraft26%
- Air traffic control & airport congestion19%
- Extreme weather8%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather76%
- Airline (crew, maintenance, cleaning, fueling)14%
- Air traffic control & airport congestion10%
- Security0%
COS to ORD: common questions
- How often are COS to ORD flights on time?
- 75% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Colorado Springs to Chicago cancelled?
- 2.1% of scheduled flights were cancelled (21 of 1,001).
- How long are typical delays?
- Across all flights the average arrival delay was 31 min (early arrivals count as zero). Flights that were late arrived 122 min behind schedule on average, and 12.4% of flights were an hour or more late.
- How long is taxi time at COS?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to COS — 72% on time
More flights from Colorado Springs
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: COS → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.