Best Time to Fly DEN to AUS: On-Time Stats by Hour & Airline
Denver International → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
5,394 flights were scheduled from Denver (DEN) to Austin (AUS) in the last 12 months, and 76.7% of those that flew arrived on time, 1.0 points below the US average of 77.6%.
Among 4 airlines, United Airlines led with 80.0% on time and Frontier Airlines was last with 71.4%.
Over 24 months, Wednesday was the most reliable day (79% on time) and July the worst month (62%).
The cancellation rate was 0.5% (US average 1.8%).
DEN to AUS 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 |
|---|---|---|---|---|
| United Airlines | 80.0% | 58 min | 0.4% | 1,898 |
| SkyWest Airlines | 77.6% | 81 min | 0.5% | 553 |
| Southwest Airlines | 75.0% | 54 min | 0.6% | 2,362 |
| Frontier Airlines | 71.4% | 64 min | 0.5% | 581 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DEN to AUS
On-time arrival % by scheduled departure hour (local time), 10,158 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 2 | |
| 5am–6am | 93.8% | 0.0% | 208 |
| 6am–7am | 93.4% | 0.4% | 502 |
| 7am–8am | 92.5% | 0.0% | 372 |
| 8am–9am | 92.4% | 0.2% | 881 |
| 9am–10am | 84.3% | 0.2% | 866 |
| 10am–11am | 80.8% | 0.2% | 802 |
| 11am–12pm | 73.5% | 1.2% | 323 |
| 12pm–1pm | 76.3% | 0.3% | 297 |
| 1pm–2pm | 78.5% | 0.5% | 1,049 |
| 2pm–3pm | 75.1% | 0.6% | 315 |
| 3pm–4pm | 72.7% | 0.4% | 704 |
| 4pm–5pm | 67.6% | 1.3% | 373 |
| 5pm–6pm | 67.5% | 0.3% | 865 |
| 6pm–7pm | 68.8% | 0.4% | 686 |
| 7pm–8pm | 62.1% | 1.1% | 470 |
| 8pm–9pm | 60.7% | 0.8% | 1,202 |
| 9pm–10pm | 69.4% | 0.9% | 224 |
| 10pm–11pm | Limited data | 15 | |
| 11pm–12am | Limited data | 2 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DEN to AUS
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) | 81.6% | +3.0 pts | 0.0% | 207 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.0% | +1.4 pts | 0.2% | 426 |
| Summer peak (Jun 15 - Aug 15) | 64.4% | -14.2 pts | 1.0% | 1,866 |
| All other days | 78.6% | — | 0.4% | 7,659 |
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).