Best Time to Fly PHX to AUS: On-Time Stats by Hour & Airline
Phoenix Sky Harbor International → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.9% of Phoenix (PHX) to Austin (AUS) flights arrived on time (3,351 scheduled flights). That is 2.8 points below the national average of 77.6%.
Frontier Airlines was the most punctual of the 3 airlines on the route at 86.8%, while American Airlines trailed at 74.1%.
September has been the best month (87% on time) and Friday the weakest day of the week (74%).
0.7% of flights were cancelled, versus 1.8% nationally.
PHX 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 |
|---|---|---|---|---|
| Frontier Airlines | 86.8% | 67 min | 0.7% | 145 |
| Southwest Airlines | 74.1% | 49 min | 0.6% | 1,957 |
| American Airlines | 74.1% | 66 min | 1.0% | 1,198 |
| Envoy Air | Limited data | 26 | ||
| SkyWest Airlines | Limited data | 25 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHX to AUS
On-time arrival % by scheduled departure hour (local time), 6,719 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 4 | |
| 5am–6am | 97.1% | 0.5% | 386 |
| 6am–7am | 98.0% | 0.4% | 248 |
| 7am–8am | 92.6% | 0.0% | 352 |
| 8am–9am | 81.3% | 0.2% | 532 |
| 9am–10am | 85.0% | 0.6% | 726 |
| 10am–11am | 76.5% | 0.3% | 373 |
| 11am–12pm | 75.8% | 1.9% | 257 |
| 12pm–1pm | 82.6% | 0.0% | 453 |
| 1pm–2pm | 77.0% | 0.5% | 386 |
| 2pm–3pm | 72.2% | 1.1% | 264 |
| 3pm–4pm | 72.5% | 0.4% | 695 |
| 4pm–5pm | 69.9% | 1.5% | 412 |
| 5pm–6pm | 66.9% | 0.0% | 378 |
| 6pm–7pm | 69.5% | 0.3% | 375 |
| 7pm–8pm | 66.7% | 1.4% | 591 |
| 8pm–9pm | 75.2% | 0.0% | 238 |
| 9pm–10pm | 45.5% | 0.0% | 45 |
| 10pm–11pm | Limited data | 2 | |
| 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 PHX 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) | 76.3% | -3.7 pts | 0.0% | 135 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.1% | -6.9 pts | 0.0% | 286 |
| Summer peak (Jun 15 - Aug 15) | 69.4% | -10.6 pts | 0.5% | 1,019 |
| All other days | 80.0% | — | 0.6% | 5,279 |
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).