Salt Lake City (SLC) to Austin (AUS): On-Time Performance
Data through July 2026
When you fly SLC to AUS matters as much as anything else about the booking: the route swung from 88% on-time in September 2025 to just 64% in July 2025. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 77%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 4.9
- last 12 months
- Duration
- 2h 48m
- scheduled
- Distance
- 1,086 mi
Best airline from SLC to AUS
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 84% | 8 min | 0.6% | 332 |
| Delta Air Lines | 80% | 14 min | 0.6% | 2,355 |
| Southwest Airlines | 79% | 12 min | 0.5% | 1,020 |
Monthly on-time trend
Best time to fly from SLC to AUS
Aim for departures around 6 a.m. (95% on-time); avoid 4 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 16 min |
| Tuesday | 82% | 10 min |
| Wednesdaybest | 85% | 9 min |
| Thursday | 78% | 14 min |
| Friday | 78% | 12 min |
| Saturday | 82% | 11 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 aircraft26%
- Airline operations52%
- National airspace system20%
- Weather2%
Frequently asked questions
- How often are flights from SLC to AUS delayed?
- 20% of SLC–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 13 minutes.
- Which airline is most reliable from SLC to AUS?
- SkyWest Airlines has the best on-time record on this route at 84%, based on 332 flights. 3 airlines flew SLC–AUS frequently enough to compare in this period.
- What is the best time of day to fly from SLC to AUS?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 4 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to AUS?
- The scheduled SLC–AUS flight time averages 2h 48m over 1,086 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are SLC 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 SLC to AUS?
- July 2025 was the roughest month in this dataset, with only 64% of arrivals on time. The best was September 2025 at 88%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 3,707 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.