SUN to SLC flight delays & on-time performance
Nonstop flights from Friedman Memorial Airport to Salt Lake City International Airport · 222 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SUN or SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Sun Valley/Hailey/Ketchum (SUN) to Salt Lake City (SLC) arrived on time 94% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.7% were cancelled, and 3% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 7am did best (98% on time); around 1pm did worst (89%).
- Tuesday was the most reliable day to fly (97% on time) and Sunday the least (90%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (75%).
Which airline is most on time from SUN to SLC?
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. | 94% | 0.7% | 7 min | 3.1% | 1,078 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 7am98%363 flights
- 12pm91%266 flights
- 1pm89%95 flights
- 3pm94%342 flights
- 6pm92%12 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday95%0.6% cancelled
- Tuesday97%0.6% cancelled
- Wednesday92%2.6% cancelled
- Thursday92%0.0% cancelled
- Friday97%0.6% cancelled
- Saturday96%0.0% cancelled
- Sunday90%0.6% 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 weather21%
- Air traffic control & airport congestion4%
- 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%
SUN to SLC: common questions
- How often are SUN to SLC flights on time?
- 94% 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 Sun Valley/Hailey/Ketchum to Salt Lake City 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 7 min (early arrivals count as zero). Flights that were late arrived 117 min behind schedule on average, and 3.1% of flights were an hour or more late.
- How long is taxi time at SUN?
- Flights on this route spent 16 min taxiing from the gate to takeoff on average.
Related routes
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SUN → SLC, nonstop flights by US airlines that report to the DOT. How we calculate this.