San Antonio (SAT) to Salt Lake City (SLC): On-Time Performance
Data through May 2026
The calendar drives reliability on SAT–SLC. October 2024 flights landed on schedule 95% of the time, but July 2024 dropped to 65% — a gap of 30 points. Across the full period the route averages 85% on-time against a national 78%. Morning departures also hold up better than evening ones (94% vs 79%), which matters most in the rough months.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 2.8
- last 12 months
- Duration
- 2h 58m
- scheduled
- Distance
- 1,087 mi
Monthly on-time trend
Best time to fly from SAT to SLC
Aim for departures around 7 a.m. (95% on-time); avoid 6 p.m. departures (78%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 84% | 16 min |
| Tuesday | 86% | 17 min |
| Wednesdaybest | 88% | 13 min |
| Thursday | 83% | 16 min |
| Friday | 86% | 13 min |
| Saturday | 85% | 15 min |
| Sunday | 85% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations53%
- National airspace system5%
- Weather1%
Frequently asked questions
- How often are flights from SAT to SLC delayed?
- 15% of SAT–SLC flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 15 minutes.
- What is the best time of day to fly from SAT to SLC?
- Departures around 7 a.m. have the best record (95% on-time), while departures around 6 p.m. have the worst (78%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SAT to SLC?
- The scheduled SAT–SLC flight time averages 2h 58m over 1,087 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are SAT to SLC flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from SAT to SLC?
- July 2024 was the roughest month in this dataset, with only 65% of arrivals on time. The best was October 2024 at 95%. If your dates are flexible, that 30-point gap is worth planning around.
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Based on 2,025 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.