Salt Lake City International Airport (SLC) delays & on-time performance
Salt Lake City, Utah · 95 nonstop destinations · 11 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SLC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
85%
arrived < 15 min late
Cancelled
0.8%
914 flights
Avg arrival delay
11 min
65 min when late
Departed on time
85%
avg taxi-out 18 min
Figures cover 117,896 departures from SLC; on-time is measured at arrival. Arrivals into SLC were on time 85% of the time.
Key facts
- Flights departing Salt Lake City International Airport (SLC) arrived on time 85% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.8% were cancelled, and 5% arrived an hour or more late.
- SkyWest Airlines was the most punctual airline here (90% on time); Southwest Airlines was the least (78%).
- Departures scheduled around 6am did best (94% on time); around 6pm did worst (75%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (47%).
Most delayed routes from SLC
Lowest on-time arrival rates among regularly flown routes.
- SFO · San Francisco66%3,454 flts
- HNL · Honolulu76%858 flts
- ORD · Chicago76%3,205 flts
- DAL · Dallas78%674 flts
- LAS · Las Vegas78%3,744 flts
- DFW · Dallas/Fort Worth79%3,866 flts
- DEN · Denver79%7,728 flts
- CMH · Columbus79%363 flts
- FLL · Fort Lauderdale79%375 flts
- MKE · Milwaukee80%363 flts
Most reliable routes from SLC
Highest on-time arrival rates among regularly flown routes.
- HLN · Helena96%725 flts
- BTM · Butte96%361 flts
- GJT · Grand Junction95%583 flts
- CDC · Cedar City94%629 flts
- FAT · Fresno94%1,366 flts
- RDM · Bend/Redmond94%729 flts
- GTF · Great Falls93%1,071 flts
- EUG · Eugene93%769 flts
- SUN · Sun Valley/Hailey/Ketchum93%1,078 flts
- LWS · Lewiston93%365 flts
Best airline at SLC
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| SkyWest Airlines | 90% | 0.4% | 7 min | 56 | 36,266 |
| Delta Air Lines | 84% | 0.8% | 11 min | 67 | 54,665 |
| Spirit Airlines | 81% | 3.2% | 15 min | 4 | 124 |
| United Airlines | 81% | 1.1% | 16 min | 7 | 4,870 |
| Frontier Airlines | 80% | 1.5% | 17 min | 14 | 3,559 |
| Hawaiian Airlines | 80% | 0.0% | 33 min | 1 | 153 |
| American Airlines | 79% | 2.4% | 22 min | 6 | 4,649 |
| Southwest Airlines | 78% | 0.5% | 12 min | 20 | 11,224 |
| Envoy Air | 77% | 0.0% | 15 min | 3 | 109 |
| Alaska Airlines | 76% | 1.5% | 13 min | 5 | 1,701 |
| JetBlue | 75% | 4.5% | 21 min | 3 | 576 |
Best time to fly out of SLC
On-time arrival rate by scheduled departure hour (local time).
- 5am95%1,509 flts
- 6am94%2,611 flts
- 7am89%8,259 flts
- 8am89%5,440 flts
- 9am88%9,428 flts
- 10am88%9,141 flts
- 11am84%11,341 flts
- 12pm83%2,914 flts
- 1pm84%8,821 flts
- 2pm77%3,518 flts
- 3pm85%11,277 flts
- 4pm77%4,290 flts
- 5pm82%12,041 flts
- 6pm75%2,380 flts
- 8pm83%8,489 flts
- 9pm86%5,225 flts
- 10pm86%5,260 flts
- 11pm84%4,660 flts
Monthly trend
Why departures were late
- Airline (crew, maintenance, cleaning, fueling)47%
- Late-arriving aircraft26%
- Air traffic control & airport congestion21%
- Extreme weather6%
- Security0%
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.