Route Reliability
San Diego → Salt Lake City
SAN–SLC · 626 miles · San Diego International Airport to Salt Lake City International Airport
- 85%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0.6%
- Cancelled
- 3,066
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Delta Air Lines89%1,752 flights
- 2.Frontier Airlines83%142 flights
- 3.Alaska Airlines78%764 flights
- 4.Southwest Airlines78%408 flights
What the data says
Morning-you made the right choice.
SAN–SLC flights departing between 6–9 AM arrived on time 94% of the time, versus 77% between 3–6 PM.
Friday is doing you no favors.
SAN–SLC flights arrived on time 89% of the time on Mondays. On Fridays: 79%.
Delta Air Lines runs this route best.
Delta Air Lines arrived on time 89% of the time on this route; Southwest Airlines managed 78%.
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
- Mon89%(461 flights)
- Tue89%(416 flights)
- Wed88%(398 flights)
- Thu81%(432 flights)
- Fri79%(463 flights)
- Sat86%(384 flights)
- Sun82%(487 flights)
- 6–9 AM94%(504 flights)
- 9 AM–12 PM90%(674 flights)
- 12–3 PM84%(524 flights)
- 3–6 PM77%(897 flights)
- 6–9 PM82%(442 flights)
Jun 81% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 81% | 215 |
| July 2025 | 79% | 220 |
| August 2025 | 82% | 220 |
| September 2025 | 88% | 208 |
| October 2025 | 86% | 241 |
| November 2025 | 85% | 273 |
| December 2025 | 79% | 296 |
| January 2026 | 85% | 269 |
| February 2026 | 88% | 260 |
| March 2026 | 87% | 291 |
| April 2026 | 89% | 279 |
| May 2026 | 83% | 269 |
Keep nerding
Based on 3,066 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.