Airport month record
AUSMAR
Austin-Bergstrom International in March 2026
- Departures
- 7,973
- Month
- March 2026
- National, same month
- 75.7%
- Carriers
- 12
Historical statistics for March 2026, not live status or a forecast for this year’s March. For today’s conditions at AUS, see live FAA status.
AUS in March sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 2 points worse than the national rate of 75.7%. The late ones land a little over an hour behind schedule. That rests on 7,973 flights, of which Delta Air Lines flew 1,117 at 81.5% on time.
Delta Air Lines is the most reliable of the five carriers covered here at 81.5% on time across 1,117 flights.
Key figures
On time
73.3%
Arrivals under 15 minutes late, of 7,814 completed departures
Avg delay
73 min
Across delayed arrivals only, not all flights
Cancelled
1.71%
Nationally in March: 2.90%
Whole year
76.6%
AUS across all twelve months
These figures cover 7,973 departures from Austin-Bergstrom International in March 2026. 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
March next to AUS's other months
Against AUS's own year, March ran 3 points worse than the twelve-month rate of 76.6%, which makes it number ten of twelve months, best first. Either side of it, February ran 81.9% on time and April 77.5%, so a trip moved by a few weeks would have landed in a better stretch.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 | 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 (this page) | 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 March
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 23 points, against 12 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,622 flights87.6%
- 8am–11am1,191 flights81.5%
- 11am–2pm1,271 flights72.6%
- 2pm–5pm1,667 flights65.1%
- 5pm–8pm1,466 flights64.4%
- 8pm–5am756 flights66.0%
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 64.4% on time, against 87.6% 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 1,667 flights scheduled in it.
Across the week, Tuesday is the strongest day at 78.9% on time and Sunday the weakest at 68.1%. 11 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at AUS in March
The choice of carrier is not cosmetic here. Delta Air Lines arrives on time 81.5% of the time; Southwest Airlines manages 69.3%. Sample sizes sit next to every figure, because a two-point gap across 3,430 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 3,430 | 69.3% | 53 min | 1.08% | C |
| Delta Air Lines | 1,117 | 81.5% | 74 min | 2.60% | B |
| American Airlines | 1,050 | 71.6% | 124 min | 1.90% | C |
| United Airlines | 999 | 80.4% | 86 min | 1.20% | B |
| SkyWest Airlines | 697 | 78.1% | 85 min | 1.00% | B |
| Frontier Airlinesthin sample | 200 | 72.5% | 68 min | 3.00% | C |
| Spirit Airlinesthin sample | 140 | 39.8% | 87 min | 11.43% | F− |
| Alaska Airlinesthin sample | 133 | 79.2% | 48 min | 1.50% | B |
| JetBlue Airwaysthin sample | 87 | 65.1% | 104 min | 1.15% | C |
| Envoy Airthin sample | 35 | 73.5% | 40 min | 2.86% | C |
| PSA Airlinesthin sample | 35 | 66.7% | 60 min | 14.29% | C− |
| Allegiant Airthin sample | 34 | 85.3% | 54 min | 0.00% | A+ |
The spread between Delta and Southwest is 12 points, wide enough that it should decide the booking. On a hundred trips that is 12 more arrivals inside the on-time window.
Route by route
Busiest routes out of AUS in March
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| AUS to DEN · Denver | 516 | 79.1% | 67 min | 0.58% | B+ |
| AUS to DFW · Dallas-Fort Worth | 389 | 69.9% | 104 min | 3.34% | C− |
| AUS to LAX · Los Angeles | 387 | 87.0% | 72 min | 0.52% | A+ |
| AUS to ATL · Atlanta | 381 | 77.2% | 63 min | 2.10% | B |
| AUS to PHX · Phoenixthin sample | 348 | 81.4% | 66 min | 0.57% | B+ |
| AUS to ORD · Chicagothin sample | 302 | 64.5% | 107 min | 4.64% | D− |
| AUS to MCO · Orlandothin sample | 288 | 62.8% | 58 min | 4.86% | D− |
| AUS to BNA · Nashvillethin sample | 277 | 71.6% | 61 min | 0.72% | C+ |
| AUS to LAS · Las Vegasthin sample | 259 | 78.3% | 53 min | 0.39% | B+ |
| AUS to SAN · San Diegothin sample | 254 | 80.6% | 62 min | 0.79% | B+ |
| AUS to IAH · Houstonthin sample | 235 | 75.3% | 91 min | 3.40% | B− |
| AUS to MIA · Miamithin sample | 217 | 73.4% | 71 min | 1.38% | C |
| AUS to SFO · San Franciscothin sample | 210 | 85.2% | 76 min | 0.48% | A+ |
| AUS to EWR · Newarkthin sample | 203 | 67.3% | 69 min | 2.46% | C |
| AUS to DAL · Dallasthin sample | 201 | 70.7% | 55 min | 1.49% | C |
| AUS to JFK · New Yorkthin sample | 176 | 76.9% | 79 min | 3.41% | B− |
| AUS to SEA · Seattlethin sample | 172 | 78.0% | 72 min | 2.33% | B |
| AUS to SLC · Salt Lake Citythin sample | 170 | 82.8% | 76 min | 0.59% | B+ |
| AUS to MSY · New Orleansthin sample | 169 | 68.3% | 52 min | 1.18% | C |
| AUS to TPA · Tampathin sample | 157 | 67.3% | 58 min | 2.55% | C |
| AUS to CLT · Charlottethin sample | 149 | 70.3% | 139 min | 0.67% | C+ |
| AUS to FLL · Fort Lauderdalethin sample | 149 | 47.1% | 66 min | 6.71% | F− |
| AUS to MSP · Minneapolisthin sample | 145 | 70.9% | 64 min | 2.76% | C |
| AUS to BOS · Bostonthin sample | 145 | 57.6% | 76 min | 4.14% | D− |
| AUS to DTW · Detroitthin sample | 113 | 86.5% | 69 min | 0.88% | A+ |
Delay causes
What held AUS up in March
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 151,000 reported delay minutes.
- 41%Late-arriving aircraft
- 33%Carrier
- 22%National Airspace System
- 3%Extreme weather
- 0%Security
41% 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 151,000 reported delay minutes here, that single category outweighs weather by 15 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 151,447 reported delay minutes.
Cancellations sit at 1.71% against a national 2.90%, which is ordinary. Diversions add another 0.29%.
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 9.3% of arrivals land a full hour or more behind schedule, against 9.5% 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 March
For a March trip through AUS: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 87.6% on time, and with 9.3% 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 July69.6%
- 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 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.