SLC to SUN flight delays & on-time performance
Nonstop flights from Salt Lake City International Airport to Friedman Memorial Airport · 222 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SLC or SUN right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Salt Lake City (SLC) to Sun Valley/Hailey/Ketchum (SUN) arrived on time 93% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.7% were cancelled, and 2% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 8pm did best (96% on time); around 1pm did worst (91%).
- Tuesday was the most reliable day to fly (97% on time) and Saturday the least (90%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (75%).
Which airline is most on time from SLC to SUN?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 93% | 0.7% | 4 min | 2.1% | 1,078 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 10am92%266 flights
- 11am92%95 flights
- 1pm91%342 flights
- 4pm100%12 flights
- 8pm96%291 flights
- 9pm96%71 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday95%0.6% cancelled
- Tuesday97%0.7% cancelled
- Wednesday94%2.0% cancelled
- Thursday91%0.0% cancelled
- Friday94%0.6% cancelled
- Saturday90%0.0% cancelled
- Sunday92%1.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)75%
- Extreme weather19%
- Air traffic control & airport congestion7%
- Late-arriving aircraft0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
SLC to SUN: common questions
- How often are SLC to SUN flights on time?
- 93% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Salt Lake City to Sun Valley/Hailey/Ketchum cancelled?
- 0.7% of scheduled flights were cancelled (8 of 1,078).
- How long are typical delays?
- Across all flights the average arrival delay was 4 min (early arrivals count as zero). Flights that were late arrived 55 min behind schedule on average, and 2.1% of flights were an hour or more late.
- How long is taxi time at SLC?
- Flights on this route spent 18 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SUN to SLC — 94% on time
More flights from Salt Lake City
More flights to Sun Valley/Hailey/Ketchum
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SLC → SUN, nonstop flights by US airlines that report to the DOT. How we calculate this.