IAH to COS flight delays & on-time performance
Nonstop flights from George Bush Intercontinental Airport to City of Colorado Springs Municipal Airport · 809 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at IAH or COS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Houston (IAH) to Colorado Springs (COS) arrived on time 78% of the time in Aug 2025 – Jul 2026, in line with the national average.
- 0.4% were cancelled, and 8% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7pm did best (78% on time); around 8pm did worst (77%).
- Monday was the most reliable day to fly (86% on time) and Wednesday the least (69%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (36%).
Which airline is most on time from IAH to COS?
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 |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 78% | 0.4% | 17 min | 7.8% | 246 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7pm78%144 flights
- 8pm77%96 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday86%0.0% cancelled
- Tuesday85%0.0% cancelled
- Wednesday69%0.0% cancelled
- Thursday80%0.0% cancelled
- Friday74%2.8% cancelled
- Saturday71%0.0% cancelled
- Sunday80%0.0% 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)36%
- Extreme weather26%
- Air traffic control & airport congestion20%
- Late-arriving aircraft18%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
IAH to COS: common questions
- How often are IAH to COS flights on time?
- 78% 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 Houston to Colorado Springs cancelled?
- 0.4% of scheduled flights were cancelled (1 of 246).
- How long are typical delays?
- Across all flights the average arrival delay was 17 min (early arrivals count as zero). Flights that were late arrived 73 min behind schedule on average, and 7.8% of flights were an hour or more late.
- How long is taxi time at IAH?
- Flights on this route spent 23 min taxiing from the gate to takeoff on average.
Related routes
Return trip: COS to IAH — 88% on time
More flights from Houston
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: IAH → COS, nonstop flights by US airlines that report to the DOT. How we calculate this.