Route profile
PHX→AUS
Flight reliability, delays and best times to fly from Phoenix to Austin, 872 miles.
Right now
Aviation weather is not currently a factor.
Aviation weather is not currently a factor.
Route reliability
July 2023 – July 2026
Better than 66% of comparable major US routes (4,598 compared)
Calculated from 10,510 flights. How this is calculated
PHX → AUS arrives on time 78.5% of the time; the return trip, AUS → PHX, arrives on time 80.1% of the time.
PHX → AUS spends 21.3 minutes on the ground on an 872-mile trip: 14.2 minutes from pushback to wheels-up at PHX and 7.1 minutes from touchdown to gate at AUS.
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026
Why PHX → AUS flights are cancelled
July 2023 – July 2026
PHX → AUS cancelled 54 of 10,510 scheduled flights — about 1 in every 195. The reason filed most often was extreme weather, 61.1% of the cancellations coded on this route — about 1 in every 318 scheduled flights.
Share of cancellations
Of 54 cancelled departures carrying a reason code.
What each reason means
Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.
33 cancellations, 61.1% of the total.
Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.
15 cancellations, 27.8% of the total.
Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.
6 cancellations, 11.1% of the total.
A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.
0 cancellations, 0.0% of the total.
Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.
54 coded cancellations were recorded on PHX → AUS; the section appears from 50.
When it goes wrong
July 2023 – July 2026
40 min late
against a median of 4 min early
Percentiles over 10,510 operations; cancelled and diverted flights are counted separately.
Will your connection be tight enough?
Layovers at AUS after arriving from PHX.
| Connection time | Chance of missing | Reads as |
|---|---|---|
| 30 min | 39% | Likely to miss |
| 45 min | 21% | High risk |
| 60 min | 13% | Some risk |
| 90 min | 6.3% | Some risk |
| 120 min | 3.1% | Low risk |
This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.51% of the time and diverts 0.22% of the time, which a late arrival never shows up in.
Chance of missing is the share of 10,433 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.
The worst tenth of arrivals on this route land at least 40 minutes late (90th-percentile gate arrival delay), over 10,510 operations.
Any other layover length: connection checker.
Best time to fly
PHX → AUS flights departing 5–9 AM arrived on time 91.7% of the time, against 70.2% for 6–9 PM departures, a gap of 21.5 percentage points.
By departure window
By departure hour
- 12 AM to 4 AM: too few flights to score
- 5 AM: 96.7% on time from 601 flights
- 6 AM: 97.1% on time from 413 flights
- 7 AM: 93.2% on time from 503 flights
- 8 AM: 84.8% on time from 854 flights
- 9 AM: 84.8% on time from 1,091 flights
- 10 AM: 78.4% on time from 457 flights
- 11 AM: 78.5% on time from 459 flights
- 12 PM: 78.5% on time from 794 flights
- 1 PM: 76.2% on time from 650 flights
- 2 PM: 71.7% on time from 359 flights
- 3 PM: 74.1% on time from 1,134 flights
- 4 PM: 69.9% on time from 678 flights
- 5 PM: 66.7% on time from 446 flights
- 6 PM: 70.3% on time from 617 flights
- 7 PM: 69.8% on time from 985 flights
- 8 PM: 70.9% on time from 386 flights
- 9 PM to 11 PM: too few flights to score
Departure windows with fewer than 120 flights are not scored.
Why PHX → AUS runs late
July 2023 – July 2026
the inbound aircraft was late, so this flight started late
crew, maintenance, boarding and fueling, all within the carrier’s control
airspace and airport capacity, including weather-driven flow control
weather severe enough to stop this flight specifically
screening or terminal security incidents
Share of the delay minutes US DOT attributed to each cause for PHX → AUS. Only delays of 15 minutes or more are attributed.
Late-arriving aircraft is the largest cause on PHX → AUS, at 51.6%: flights here mostly leave late because the plane came in late, and the day shows it: 5–9 AM departures arrived on time 91.7% of the time and 6–9 PM departures 70.2%.
How this route holds up in bad weather
July 2023 – July 2026
The harder-hit end is the one the flight leaves from, where a cancellation keeps it from departing at all. Bad weather cancels 3.9 times the normal rate at PHX against 1.7 times at AUS. Cancelled in bad weather against normal hours: PHX 2.5% against 0.6%, AUS 1.6% against 0.9%. Flights that did leave PHX in bad weather arrived on time 53.7% of the time, against 80.6% in normal hours.
Bad weather and normal hours at the airports
Scheduled departures, July 2023 – July 2026| Departures from | PHX | AUS |
|---|---|---|
| Cancelled in bad weather | 2.5% | 1.6% |
| Cancelled in normal hours | 0.6% | 0.9% |
| Arrived on time, bad weather | 53.7% | 74.9% |
| Arrived on time, normal hours | 80.6% | 77.5% |
| Departures in bad weather | 6,215 | 22,580 |
These are airport figures, not route figures: every scheduled departure from PHX and AUS, to any destination, in hours the weather report called bad.
Weather source and limits. In full: PHX, AUS, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.
Airlines on this route
Carriers with at least 200 flights, by the airline that operated each one.
| Carrier | Flights | On time | Cancelled | Median delay | Severe |
|---|---|---|---|---|---|
| Southwest Airlines | 6,200 | 78.4% | 0.53% | -3 min | 5.3% |
| American Airlines | 4,019 | 78.2% | 0.50% | -6 min | 7.9% |
| Frontier Airlines | 206 | 81.0% | 0.49% | -8 min | 9.8% |
Southwest Airlines flew 59.5% of the 10,425 flights listed.
Frontier Airlines arrived on time 2.8 percentage points more often than American Airlines on this route.
Flights on this route
Flight numbers with at least 600 operations here and still on the schedule.
Weekly and seasonal patterns
By day of week
Tuesday is historically the most reliable day and Sunday the least, a gap of 8.1 percentage points.
By month
- Jan: 81.7%
- Feb: 85.6%
- Mar: 76.2%
- Apr: 78.1%
- May: 73.5%
- Jun: 70.1%
- Jul: 72.6%
- Aug: 81.4%
- Sep: 85.2%
- Oct: 78.6%
- Nov: 79.3%
- Dec: 81.7%
June is historically the weakest month and February the strongest, a spread of 15.5 percentage points.
Reliability over time
July 2023 – July 2026
- July 2023: 77.7% from 260 flights
- August 2023: 83.8% from 271 flights
- September 2023: 81.2% from 285 flights
- October 2023: 78.9% from 304 flights
- November 2023: 85.4% from 294 flights
- December 2023: 86.5% from 303 flights
- January 2024: 79.9% from 300 flights
- February 2024: 86.3% from 278 flights
- March 2024: 75.6% from 312 flights
- April 2024: 75.2% from 300 flights
- May 2024: 70.5% from 313 flights
- June 2024: 74.7% from 282 flights
- July 2024: 75.6% from 289 flights
- August 2024: 80.4% from 274 flights
- September 2024: 88.0% from 260 flights
- October 2024: 83.3% from 301 flights
- November 2024: 83.5% from 280 flights
- December 2024: 82.8% from 285 flights
- January 2025: 87.2% from 258 flights
- February 2025: 88.2% from 255 flights
- March 2025: 82.3% from 318 flights
- April 2025: 79.8% from 314 flights
- May 2025: 75.8% from 307 flights
- June 2025: 70.4% from 257 flights
- July 2025: 71.6% from 259 flights
- August 2025: 79.8% from 246 flights
- September 2025: 86.8% from 236 flights
- October 2025: 73.5% from 308 flights
- November 2025: 68.8% from 284 flights
- December 2025: 75.5% from 291 flights
- January 2026: 78.3% from 276 flights
- February 2026: 82.4% from 272 flights
- March 2026: 71.2% from 348 flights
- April 2026: 79.0% from 316 flights
- May 2026: 74.1% from 296 flights
- June 2026: 64.2% from 233 flights
- July 2026: 64.9% from 245 flights
Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 74.9% against 81.1% in the 12 months before — declining by 6.2 percentage points.
Data and methodology
Calculated by FlyerIntel from 10,510 PHX → AUS flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.
Full methodology · Data sources · Report a problem
Related research: How Long a Layover Needs to Be · Two Airlines on One Route · Best Time of Day to Fly From Major US Airports
Analysis last recomputed