Airport month record
AUSJUL
Austin-Bergstrom International in July 2025
- Departures
- 7,896
- Month
- July 2025
- National, same month
- 71.1%
- Carriers
- 11
Historical statistics for July 2025, not live status or a forecast for this year’s July. For today’s conditions at AUS, see live FAA status.
AUS in July sits in the middle of the pack with a C. About seven flights in ten arrive on time by the DOT's definition, 2 points worse than the national rate of 71.1%. The late ones land a little over an hour behind schedule. That rests on 7,896 flights, of which Delta Air Lines flew 1,118 at 74.7% on time.
Delta Air Lines is the most reliable of the five carriers covered here at 74.7% on time across 1,118 flights.
Key figures
On time
69.6%
Arrivals under 15 minutes late, of 7,731 completed departures
Avg delay
80 min
Across delayed arrivals only, not all flights
Cancelled
1.61%
Nationally in July: 2.45%
Whole year
76.6%
AUS across all twelve months
These figures cover 7,896 departures from Austin-Bergstrom International in July 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
July next to AUS's other months
Against AUS's own year, July ran 7 points worse than the twelve-month rate of 76.6%, which makes it number eleven of twelve months, best first.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 (this page) | 7,896 | 69.6% | 80 min | 1.61% | C |
| August 2025 | 7,214 | 78.1% | 74 min | 0.94% | B+ |
| September 2025 | 6,889 | 84.2% | 65 min | 0.39% | B+ |
| October 2025 | 7,845 | 76.8% | 61 min | 0.40% | B+ |
| November 2025 | 7,346 | 76.0% | 75 min | 1.05% | B |
| December 2025 | 7,528 | 77.9% | 70 min | 0.62% | B+ |
| January 2026 | 6,707 | 82.8% | 84 min | 4.65% | B− |
| February 2026 | 6,471 | 81.9% | 68 min | 0.99% | B+ |
| March 2026 | 7,973 | 73.3% | 73 min | 1.71% | C |
| April 2026 | 7,647 | 77.5% | 64 min | 0.59% | B+ |
| May 2026 | 7,831 | 75.1% | 71 min | 0.91% | B+ |
| June 2026 | 7,879 | 69.1% | 69 min | 0.98% | C+ |
Departure window
The best time of day to leave AUS in July
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 39 points, against 8 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,426 flights90.6%
- 8am–11am1,403 flights83.3%
- 11am–2pm1,241 flights75.4%
- 2pm–5pm1,634 flights58.4%
- 5pm–8pm1,427 flights51.2%
- 8pm–5am765 flights54.1%
Scale runs 45% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 51.2% on time, against 90.6% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 2pm–5pm window is the busiest, with 1,634 flights scheduled in it.
Across the week, Saturday is the strongest day at 75.5% on time and Sunday the weakest at 59.8%. 16 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at AUS in July
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 74.7% of the time; Southwest Airlines manages 67.0%. Sample sizes sit next to every figure, because a two-point gap across 3,405 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 3,405 | 67.0% | 63 min | 0.70% | C+ |
| Delta Air Lines | 1,118 | 74.7% | 87 min | 1.34% | C |
| American Airlines | 999 | 70.7% | 123 min | 4.00% | C− |
| United Airlines | 863 | 72.3% | 90 min | 2.09% | C |
| SkyWest Airlines | 705 | 72.3% | 100 min | 0.57% | C+ |
| Alaska Airlinesthin sample | 246 | 73.6% | 65 min | 2.03% | C |
| Envoy Airthin sample | 160 | 73.7% | 62 min | 5.00% | C− |
| Frontier Airlinesthin sample | 160 | 58.7% | 108 min | 6.25% | D− |
| Allegiant Airthin sample | 102 | 68.3% | 77 min | 0.00% | C+ |
| Spirit Airlinesthin sample | 99 | 60.8% | 77 min | 1.01% | D |
| JetBlue Airwaysthin sample | 31 | 46.7% | 66 min | 3.23% | F− |
American Airlines cancels 4.0% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Route by route
Busiest routes out of AUS in July
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AUS to DFW · Dallas-Fort Worth | 450 | 68.8% | 110 min | 4.44% | C− |
| AUS to DEN · Denver | 437 | 64.9% | 85 min | 2.29% | D |
| AUS to ATL · Atlanta | 412 | 71.9% | 75 min | 2.43% | C |
| AUS to LAX · Los Angelesthin sample | 354 | 70.7% | 75 min | 1.41% | C |
| AUS to ORD · Chicagothin sample | 268 | 66.7% | 82 min | 2.99% | C |
| AUS to PHX · Phoenixthin sample | 260 | 72.6% | 92 min | 0.38% | C+ |
| AUS to MCO · Orlandothin sample | 254 | 67.3% | 65 min | 1.97% | C |
| AUS to BNA · Nashvillethin sample | 251 | 69.4% | 66 min | 0.00% | C+ |
| AUS to LAS · Las Vegasthin sample | 245 | 71.9% | 56 min | 0.41% | C+ |
| AUS to SFO · San Franciscothin sample | 241 | 72.1% | 59 min | 2.90% | C |
| AUS to SEA · Seattlethin sample | 208 | 81.0% | 101 min | 1.44% | B |
| AUS to SAN · San Diegothin sample | 205 | 70.4% | 103 min | 0.49% | C+ |
| AUS to DAL · Dallasthin sample | 197 | 71.7% | 67 min | 2.54% | C |
| AUS to MSY · New Orleansthin sample | 193 | 68.2% | 68 min | 0.52% | C+ |
| AUS to IAH · Houstonthin sample | 188 | 71.0% | 99 min | 1.06% | C |
| AUS to MIA · Miamithin sample | 178 | 69.4% | 85 min | 2.25% | C |
| AUS to JFK · New Yorkthin sample | 178 | 68.4% | 97 min | 2.81% | C |
| AUS to EWR · Newarkthin sample | 173 | 62.0% | 126 min | 2.31% | D |
| AUS to SLC · Salt Lake Citythin sample | 169 | 77.4% | 73 min | 0.59% | B+ |
| AUS to MSP · Minneapolisthin sample | 150 | 68.9% | 78 min | 0.67% | C+ |
| AUS to CLT · Charlottethin sample | 148 | 70.9% | 148 min | 4.73% | C− |
| AUS to BOS · Bostonthin sample | 142 | 61.8% | 80 min | 3.52% | D− |
| AUS to MDW · Chicagothin sample | 133 | 69.5% | 63 min | 3.01% | C− |
| AUS to DTW · Detroitthin sample | 132 | 82.2% | 157 min | 2.27% | B |
| AUS to HOU · Houstonthin sample | 131 | 62.6% | 58 min | 0.00% | D+ |
Delay causes
What held AUS up in July
One category carries most of the weight here. Late-arriving aircraft accounts for 46% of the 189,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 46%Late-arriving aircraft
- 29%Carrier
- 18%National Airspace System
- 6%Extreme weather
- 0%Security
46% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 189,000 reported delay minutes here, that single category outweighs weather by 8 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 188,811 reported delay minutes.
Cancellations sit at 1.61% against a national 2.45%, which is ordinary. Diversions add another 0.48%.
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.3% of arrivals land a full hour or more behind schedule, against 12.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
What to do with this
Flying from AUS in July
For a July trip through AUS: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 90.6% on time, and with 12.3% of arrivals an hour or more late, a connection here deserves more slack than the same trip in September would.
Related
Where to go next
- Austin-Bergstrom International (AUS), the whole year
- AUS in August78.1%
- AUS in September84.2%
- AUS in October76.8%
- AUS in November76.0%
- AUS in December77.9%
- AUS in January82.8%
- AUS in February81.9%
- AUS in March73.3%
- AUS in April77.5%
- AUS in May75.1%
- AUS in June69.1%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.