Best Time to Fly BOS to AUS: On-Time Stats by Hour & Airline
Logan International → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 72.1% of Boston (BOS) to Austin (AUS) flights arrived on time (1,673 scheduled flights). That is 5.5 points below the national average of 77.6%.
Among 3 airlines, JetBlue led with 74.3% on time and Southwest Airlines was last with 62.6%.
Over 24 months, Saturday was the most reliable day (78% on time) and January the worst month (64%).
The cancellation rate was 2.2% (US average 1.8%).
BOS 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 |
|---|---|---|---|---|
| JetBlue | 74.3% | 62 min | 2.3% | 395 |
| Delta Air Lines | 73.9% | 93 min | 2.4% | 996 |
| Southwest Airlines | 62.6% | 55 min | 1.4% | 282 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to AUS
On-time arrival % by scheduled departure hour (local time), 3,040 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 83.9% | 1.8% | 779 |
| 7am–8am | 89.3% | 0.0% | 112 |
| 8am–9am | 86.1% | 1.4% | 139 |
| 9am–10am | 91.8% | 0.0% | 73 |
| 10am–11am | 73.5% | 1.4% | 138 |
| 11am–12pm | 58.8% | 0.0% | 34 |
| 12pm–1pm | 71.8% | 3.4% | 239 |
| 1pm–2pm | 72.9% | 0.4% | 515 |
| 2pm–3pm | 66.2% | 1.8% | 223 |
| 3pm–4pm | 55.0% | 1.1% | 92 |
| 4pm–5pm | 39.7% | 0.0% | 63 |
| 5pm–6pm | 80.3% | 5.0% | 80 |
| 6pm–7pm | 54.7% | 1.8% | 392 |
| 7pm–8pm | 63.1% | 5.1% | 137 |
| 8pm–9pm | Limited data | 24 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOS 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) | 70.9% | -2.8 pts | 0.0% | 55 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.2% | +7.5 pts | 1.9% | 103 |
| Summer peak (Jun 15 - Aug 15) | 67.6% | -6.2 pts | 3.1% | 621 |
| All other days | 73.7% | — | 1.3% | 2,261 |
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).