Route Reliability
Austin → Salt Lake City
AUS–SLC · 1,086 miles · Austin–Bergstrom International Airport to Salt Lake City International Airport
- 84%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.7%
- Cancelled
- 1,781
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines87%1,312 flights
- 2.Southwest Airlines73%469 flights
What the data says
Morning flights do better here.
AUS–SLC flights departing between 6–9 AM arrived on time 93% of the time, versus 70% between 3–6 PM.
Thursday is the weak spot.
AUS–SLC flights arrived on time 87% of the time on Tuesdays. On Thursdays: 79%.
Delta Air Lines runs this route best.
Delta Air Lines arrived on time 87% of the time on this route; Southwest Airlines managed 73%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon83%(274 flights)
- Tue87%(244 flights)
- Wed82%(239 flights)
- Thu79%(270 flights)
- Fri86%(271 flights)
- Sat83%(206 flights)
- Sun85%(264 flights)
- 3–6 AM92%(119 flights)
- 6–9 AM93%(452 flights)
- 9 AM–12 PM89%(124 flights)
- 12–3 PM81%(436 flights)
- 3–6 PM70%(228 flights)
- 6–9 PM80%(409 flights)
Jun 78% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 78% | 160 |
| July 2025 | 78% | 168 |
| August 2025 | 87% | 142 |
| September 2025 | 91% | 135 |
| October 2025 | 82% | 152 |
| November 2025 | 86% | 134 |
| December 2025 | 86% | 140 |
| January 2026 | 76% | 133 |
| February 2026 | 89% | 140 |
| March 2026 | 83% | 169 |
| April 2026 | 86% | 148 |
| May 2026 | 84% | 147 |
Keep nerding
Based on 1,781 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.