Airports › Austin (AUS) › December 2025
Airport month · December 2025
Austin - Bergstrom International in December 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In December 2025, reporting carriers scheduled 7,528 domestic departures from Austin - Bergstrom International (AUS). 73.9% left less than 15 minutes late and 77.4% reached their destination on time; 0.6% were cancelled.
Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so AUS departures were 1.9 points above the national departure figure.
A year earlier, in December 2024, the airport had 6,932 departures with 77.7% leaving on time: a change of −3.8 points, with flights up 9%.
Flights arriving at AUS that month were on time 75.1% of the time (7,526 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 48%, air carrier 34% and national aviation system 17%.
- On time 77.4%
- Arrived 15+ minutes late 21.9%
- Cancelled 0.6%
- Diverted 0.1%
December 2025 against a year earlier, the airport's year and the nation
| Measure | Dec 2025 | Dec 2024 | AUS, 12 months to Jul 2026 | All reported flights, Dec 2025 |
|---|---|---|---|---|
| Departed on time | 73.9% | 77.7% | 74.2% | 72.0% |
| Arrived on time | 77.4% | 79.1% | 75.5% | 71.9% |
| Cancelled | 0.6% | 0.4% | 1.2% | 1.5% |
| Average departure delay (late minutes only) | 18.4 min | 17.2 min | 18.4 min | 21.2 min |
| Scheduled departures a day | 251 | 231 | 245 | 19,410 |
| Scheduled departures | 7,528 | 6,932 | 89,507 | 582,304 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 3,297 | 44% | 77.9% | 5.5 min | 0.1% |
| DL Delta Air Lines | 1,076 | 14% | 80.5% | 5.0 min | 1.6% |
| AA American Airlines | 1,049 | 14% | 78.3% | 15.1 min | 0.6% |
| UA United Airlines | 871 | 12% | 80.0% | 5.8 min | 0.5% |
| OO SkyWest Airlines | 605 | 8% | 76.7% | 16.6 min | 0.7% |
| AS Alaska Airlines | 199 | 3% | 71.9% | 8.4 min | 1.0% |
| F9 Frontier Airlines | 144 | 2% | 70.1% | 11.3 min | 1.4% |
| NK Spirit Airlines | 107 | 1% | 55.1% | 33.8 min | 4.7% |
| B6 JetBlue Airways | 86 | 1% | 51.2% | 28.8 min | 1.2% |
| G4 Allegiant Air | 63 | 1% | 63.5% | 19.5 min | 3.2% |
| OH PSA Airlines | 15 | 0% | 46.7% | 17.0 min | 0.0% |
| MQ Envoy Air | 8 | 0% | 100.0% | -6.5 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| AUS–DEN | Austin to Denver | 449 | 75.5% | 9.5 min | 0.0% |
| AUS–DFW | Austin to Dallas/Fort Worth | 410 | 77.8% | 18.4 min | 0.5% |
| AUS–ATL | Austin to Atlanta | 367 | 80.9% | 6.9 min | 2.2% |
| AUS–LAX | Austin to Los Angeles | 346 | 82.9% | -1.6 min | 0.0% |
| AUS–PHX | Austin to Phoenix | 290 | 85.2% | 4.8 min | 0.0% |
| AUS–SFO | Austin to San Francisco | 261 | 82.8% | 0.9 min | 0.8% |
| AUS–LAS | Austin to Las Vegas | 255 | 80.0% | 1.6 min | 0.0% |
| AUS–BNA | Austin to Nashville | 250 | 78.4% | 8.1 min | 0.0% |
| AUS–MCO | Austin to Orlando | 239 | 73.2% | 12.6 min | 0.4% |
| AUS–ORD | Austin to Chicago | 238 | 72.3% | 23.1 min | 0.4% |
| AUS–IAH | Austin to Houston | 232 | 81.9% | 3.6 min | 0.4% |
| AUS–EWR | Austin to Newark | 217 | 62.2% | 22.1 min | 2.8% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left AUS on time in December 2025?
73.9% of 7,528 scheduled domestic departures left less than 15 minutes late, and 77.4% reached their destination on time. The national figures that month were 72.0% and 71.9%.
How does that compare with a year earlier?
In December 2024, 77.7% of 6,932 departures left on time and 0.4% were cancelled, against 73.9% and 0.6% in December 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for AUS · methodology · corrections.