Which departure time was most reliable for DFW to COS?
Among qualifying DFW-to-COS departure window results, Early morning had the highest on-time rate: 81.6% of 304 flights. Night was lowest at 53.7% across 309 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 304 | 81.6% | 9.5% | 3.0% |
| Late morning | 389 | 75.3% | 16.7% | 1.3% |
| Afternoon | 534 | 67.2% | 18.0% | 3.7% |
| Evening | 398 | 62.1% | 25.6% | 2.8% |
| Night | 309 | 53.7% | 25.9% | 5.2% |
Which weekday was most reliable for DFW to COS?
Among qualifying DFW-to-COS weekday results, Wednesday had the highest on-time rate: 74.0% of 269 flights. Sunday was lowest at 59.8% across 276 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 276 | 64.9% | 21.4% | 2.5% |
| Tuesday | 288 | 71.2% | 17.0% | 2.8% |
| Wednesday | 269 | 74.0% | 15.2% | 1.9% |
| Thursday | 275 | 69.5% | 21.8% | 1.8% |
| Friday | 273 | 67.8% | 17.6% | 3.3% |
| Saturday | 277 | 68.2% | 19.9% | 4.7% |
| Sunday | 276 | 59.8% | 21.7% | 5.1% |
Which airline was most reliable for DFW to COS?
Among qualifying DFW-to-COS airline results, Envoy Air had the highest on-time rate: 86.2% of 254 flights. American Airlines was lowest at 62.4% across 1,070 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,070 | 62.4% | 21.7% | 3.4% |
| SkyWest Airlines | 610 | 69.8% | 19.8% | 3.4% |
| Envoy Air | 254 | 86.2% | 7.5% | 1.6% |
Which month was most reliable for DFW to COS?
Among qualifying DFW-to-COS month results, March 2026 had the highest on-time rate: 76.9% of 160 flights. July 2025 was lowest at 53.5% across 185 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 185 | 53.5% | 27.6% | 4.9% |
| August 2025 | 185 | 58.9% | 24.9% | 3.8% |
| September 2025 | 180 | 75.0% | 15.0% | 2.8% |
| October 2025 | 185 | 74.1% | 16.8% | 1.1% |
| November 2025 | 147 | 72.1% | 16.3% | 4.1% |
| December 2025 | 153 | 70.6% | 19.0% | 0.0% |
| January 2026 | 121 | 66.1% | 13.2% | 9.1% |
| February 2026 | 124 | 75.0% | 20.2% | 0.0% |
| March 2026 | 160 | 76.9% | 15.0% | 1.9% |
| April 2026 | 148 | 72.3% | 16.9% | 1.4% |
| May 2026 | 166 | 69.9% | 16.9% | 4.2% |
| June 2026 | 180 | 55.6% | 25.6% | 5.0% |
What drove DFW to COS delay minutes?
Airline was the largest recorded DFW-to-COS delay category, accounting for 42.5% of 39,178 BTS-attributed delay minutes during July 2025–June 2026.
Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.