Best Time to Fly BWI to AUS: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Austin - Bergstrom International
Data through July 2026 · Last updated October 18, 2026
1,260 flights were scheduled from Baltimore (BWI) to Austin (AUS) in the last 12 months, and 77.5% of those that flew arrived on time, in line with the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Monday was the most reliable day (81% on time) and June the worst month (67%).
The cancellation rate was 1.6% (US average 1.8%).
BWI 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 |
|---|---|---|---|---|
| Southwest Airlines | 77.5% | 48 min | 1.6% | 1,260 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to AUS
On-time arrival % by scheduled departure hour (local time), 2,523 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 97.5% | 1.9% | 206 |
| 7am–8am | 83.3% | 1.6% | 61 |
| 8am–9am | 90.0% | 0.5% | 404 |
| 9am–10am | 89.4% | 1.0% | 200 |
| 10am–11am | 82.0% | 0.6% | 168 |
| 11am–12pm | 85.7% | 3.1% | 65 |
| 12pm–1pm | 81.4% | 1.0% | 104 |
| 1pm–2pm | 74.9% | 0.5% | 191 |
| 2pm–3pm | 68.3% | 0.6% | 159 |
| 3pm–4pm | 73.9% | 0.0% | 88 |
| 4pm–5pm | 67.7% | 0.8% | 125 |
| 5pm–6pm | 64.5% | 1.6% | 63 |
| 6pm–7pm | 77.7% | 1.1% | 190 |
| 7pm–8pm | 62.1% | 2.5% | 120 |
| 8pm–9pm | 61.5% | 3.3% | 301 |
| 9pm–10pm | 64.5% | 2.6% | 78 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BWI 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) | 80.4% | -0.5 pts | 0.0% | 51 |
| Christmas & New Year (Dec 20 - Jan 3) | 72.2% | -8.7 pts | 0.0% | 108 |
| Summer peak (Jun 15 - Aug 15) | 67.9% | -13.0 pts | 2.9% | 450 |
| All other days | 80.9% | — | 1.1% | 1,914 |
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).