Salt Lake City (SLC) to Sun Valley/Hailey/Ketchum (SUN): On-Time Performance
Data through May 2026
SkyWest Airlines effectively owns the SLC–SUN corridor, operating 100% of its flights and landing on time 94% of the time. That concentration hasn't hurt reliability: the route beats the national on-time average by 16 points (94% vs 78%).
- On-time
- 94%
- arrived <15 min late
- Avg delay
- 4 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 3.0
- last 12 months
- Duration
- 1h 9m
- scheduled
- Distance
- 222 mi
Monthly on-time trend
Best time to fly from SLC to SUN
Aim for departures around 9 p.m. (98% on-time); avoid 1 p.m. departures (91%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 95% | 3 min |
| Tuesdaybest | 96% | 2 min |
| Wednesday | 95% | 3 min |
| Thursday | 93% | 3 min |
| Friday | 95% | 6 min |
| Saturday | 91% | 4 min |
| Sunday | 91% | 6 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Airline operations61%
- National airspace system6%
- Weather33%
Frequently asked questions
- How often are flights from SLC to SUN delayed?
- 6% of SLC–SUN 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 4 minutes.
- What is the best time of day to fly from SLC to SUN?
- Departures around 9 p.m. have the best record (98% on-time), while departures around 1 p.m. have the worst (91%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SLC to SUN?
- The scheduled SLC–SUN flight time averages 1h 9m over 222 miles. Actual arrival times vary — flights on this route land 15+ minutes late 6% of the time.
- How often are SLC to SUN flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for SLC to SUN?
- Tuesday flights have the best record at 96% on-time. Day-of-week differences on this route are modest.
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Based on 1,965 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.