San Francisco (SFO) to Austin (AUS): On-Time Performance
Data through July 2026
San Francisco (SFO) to Austin (AUS) effectively runs on two schedules. In April 2025, 91% of arrivals were on time; in June 2026 that fell to 61% — a 30-point seasonal swing. Across the full period the route averages 79% on-time against a national 78%.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 7.7
- last 12 months
- Duration
- 3h 36m
- scheduled
- Distance
- 1,504 mi
Best airline from SFO to AUS
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 89% | 8 min | 0.0% | 70 |
| Alaska Airlines | 85% | 10 min | 0.4% | 1,023 |
| United Airlines | 84% | 10 min | 0.6% | 3,288 |
| Delta Air Lines | 61% | 33 min | 1.3% | 528 |
| Southwest Airlines | 44% | 37 min | 0.0% | 398 |
Monthly on-time trend
Best time to fly from SFO to AUS
Aim for departures around 7 a.m. (95% on-time); avoid 11 a.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 15 min |
| Tuesday | 83% | 11 min |
| Wednesday | 81% | 16 min |
| Thursday | 75% | 15 min |
| Friday | 76% | 15 min |
| Saturdaybest | 85% | 9 min |
| Sunday | 76% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft54%
- Airline operations27%
- National airspace system17%
- Weather2%
Frequently asked questions
- How often are flights from SFO to AUS delayed?
- 21% of SFO–AUS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from SFO to AUS?
- SkyWest Airlines has the best on-time record on this route at 89%, based on 70 flights. 5 airlines flew SFO–AUS frequently enough to compare in this period.
- What is the best time of day to fly from SFO to AUS?
- Departures around 7 a.m. have the best record (95% on-time), while departures around 11 a.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SFO to AUS?
- The scheduled SFO–AUS flight time averages 3h 36m over 1,504 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are SFO to AUS flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SFO to AUS?
- June 2026 was the roughest month in this dataset, with only 61% of arrivals on time. The best was April 2025 at 91%. If your dates are flexible, that 30-point gap is worth planning around.
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Based on 5,307 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.