FlightRecord

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

Monthly on-time percentage for SLC to SUN flights50%75%100%June 2024: 95% on-time (60 flights)95Jun 2024July 2024: 90% on-time (62 flights)90August 2024: 94% on-time (62 flights)94September 2024: 93% on-time (60 flights)93Sep 2024October 2024: 95% on-time (62 flights)95November 2024: 95% on-time (59 flights)95December 2024: 94% on-time (70 flights)94Dec 2024January 2025: 93% on-time (92 flights)93February 2025: 90% on-time (84 flights)90March 2025: 94% on-time (93 flights)94Mar 2025April 2025: 98% on-time (90 flights)98May 2025: 97% on-time (93 flights)97June 2025: 96% on-time (90 flights)96Jun 2025July 2025: 96% on-time (93 flights)96August 2025: 94% on-time (93 flights)94September 2025: 98% on-time (90 flights)98Sep 2025October 2025: 95% on-time (92 flights)95November 2025: 95% on-time (86 flights)95December 2025: 95% on-time (90 flights)95Dec 2025January 2026: 90% on-time (92 flights)90February 2026: 88% on-time (84 flights)88March 2026: 94% on-time (93 flights)94Mar 2026April 2026: 85% on-time (90 flights)85May 2026: 97% on-time (85 flights)97

Best time to fly from SLC to SUN

Aim for departures around 9 p.m. (98% on-time); avoid 1 p.m. departures (91%).

On-time percentage by scheduled departure hour, SLC to SUN10 a.m.: 93% on-time (346 flights)1011 a.m.: 92% on-time (379 flights)111 p.m.: 91% on-time (488 flights)134 p.m.: 88% on-time (24 flights)168 p.m.: 97% on-time (565 flights)209 p.m.: 98% on-time (161 flights)21scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday95%3 min
Tuesdaybest96%2 min
Wednesday95%3 min
Thursday93%3 min
Friday95%6 min
Saturday91%4 min
Sunday91%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.

Based on 1,965 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.