SkyWest Airlines ONT to SLC on-time performance
SkyWest Airlines nonstop flights from Ontario to Salt Lake City · Aug 2025 – Jul 2026Regional airline operating flights for United Express, Delta Connection, American Eagle and Alaska.
On-time arrivals
91%
arrived < 15 min late
Cancelled
0.3%
1 flights
Avg arrival delay
9 min
100 min when late
Rank on route
#2 of 3
route average 92% on time
Key facts
- SkyWest Airlines flights on ONT to SLC arrived on time 91% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 3% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 92% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (83%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)83%
- Extreme weather13%
- Air traffic control & airport congestion4%
- Late-arriving aircraft0%
- Security0%
Other airlines on ONT to SLC
- Delta Air Lines92% on time · 7 min avg delay
- Frontier Airlines87% on time · 6 min avg delay
Full ONT to SLC comparison →
SkyWest Airlines on-time record across all routes →
310 SkyWest Airlines flights tracked on this route; 1 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.