Best Time to Fly PHL to AUS: On-Time Stats by Hour & Airline
Philadelphia International → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.2% of Philadelphia (PHL) to Austin (AUS) flights arrived on time (1,164 scheduled flights). That is 1.5 points below the national average of 77.6%.
Among 2 airlines, Frontier Airlines led with 80.8% on time and American Airlines was last with 75.9%.
Over 24 months, Tuesday was the most reliable day (82% on time) and June the worst month (72%).
The cancellation rate was 1.6% (US average 1.8%).
PHL 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 | 80.8% | 56 min | 0.0% | 47 |
| American Airlines | 75.9% | 83 min | 1.7% | 1,109 |
| Republic Airways | Limited data | 8 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PHL to AUS
On-time arrival % by scheduled departure hour (local time), 2,146 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 6 | |
| 7am–8am | 88.7% | 0.9% | 116 |
| 8am–9am | 82.7% | 0.3% | 307 |
| 9am–10am | 82.8% | 1.8% | 286 |
| 10am–11am | 84.3% | 0.0% | 204 |
| 11am–12pm | 79.6% | 1.2% | 331 |
| 12pm–1pm | 73.0% | 0.0% | 75 |
| 1pm–2pm | 80.0% | 0.0% | 66 |
| 2pm–3pm | Limited data | 9 | |
| 3pm–4pm | 66.7% | 4.9% | 41 |
| 5pm–6pm | 67.0% | 2.6% | 116 |
| 6pm–7pm | 67.6% | 3.0% | 233 |
| 7pm–8pm | 66.9% | 5.0% | 281 |
| 8pm–9pm | 56.1% | 4.7% | 43 |
| 9pm–10pm | 78.1% | 0.0% | 32 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PHL 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) | 74.4% | -3.5 pts | 0.0% | 43 |
| Christmas & New Year (Dec 20 - Jan 3) | 72.5% | -5.5 pts | 1.4% | 70 |
| Summer peak (Jun 15 - Aug 15) | 74.2% | -3.8 pts | 3.8% | 445 |
| All other days | 77.9% | — | 1.3% | 1,588 |
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).