Best Time to Fly COS to IAH: On-Time Stats by Hour & Airline
City of Colorado Springs Municipal → George Bush Intercontinental/Houston
Data through July 2026 · Last updated October 18, 2026
247 flights were scheduled from Colorado Springs (COS) to Houston (IAH) in the last 12 months, and 88.2% of those that flew arrived on time, 10.5 points above the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (94% on time) and Thursday the weakest day of the week (80%).
0.4% of flights were cancelled, versus 1.8% nationally.
COS to IAH on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 88.2% | 97 min | 0.4% | 247 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly COS to IAH
On-time arrival % by scheduled departure hour (local time), 561 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 84.9% | 0.6% | 495 |
| 11am–12pm | Limited data | 2 | |
| 12pm–1pm | 84.1% | 0.0% | 63 |
| 1pm–2pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on COS to IAH
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 19 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 86.7% | +2.0 pts | 3.2% | 31 |
| Summer peak (Jun 15 - Aug 15) | 82.9% | -1.8 pts | 0.0% | 76 |
| All other days | 84.7% | — | 0.5% | 435 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).