Route Reliability
Salt Lake City → San Diego
SLC–SAN · 626 miles · Salt Lake City International Airport to San Diego International Airport
- 84%
- Arrive within 15 minutes
- 2 min
- Average arrival delay
- 0.8%
- Cancelled
- 3,063
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Frontier Airlines86%142 flights
- 2.Alaska Airlines85%762 flights
- 3.Delta Air Lines85%1,751 flights
- 4.Southwest Airlines76%408 flights
What the data says
Morning-you made the right choice.
SLC–SAN flights departing between 6–9 AM arrived on time 93% of the time, versus 72% between 6–9 PM.
Friday is doing you no favors.
SLC–SAN flights arrived on time 88% of the time on Tuesdays. On Fridays: 80%.
Frontier Airlines runs this route best.
Frontier Airlines arrived on time 86% of the time on this route; Southwest Airlines managed 76%.
Ticking up lately.
SLC–SAN flights arrived on time 87% of the time over the last three months in the data, compared with 81% in the three months before that.
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
- Mon87%(461 flights)
- Tue88%(412 flights)
- Wed85%(401 flights)
- Thu80%(429 flights)
- Fri80%(458 flights)
- Sat85%(382 flights)
- Sun82%(485 flights)
- 6–9 AM93%(632 flights)
- 9 AM–12 PM83%(838 flights)
- 12–3 PM84%(154 flights)
- 3–6 PM80%(818 flights)
- 6–9 PM72%(247 flights)
- 9 PM–12 AM86%(339 flights)
Jun 81% → May 85% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 81% | 215 |
| July 2025 | 83% | 220 |
| August 2025 | 84% | 220 |
| September 2025 | 88% | 207 |
| October 2025 | 80% | 240 |
| November 2025 | 83% | 269 |
| December 2025 | 77% | 292 |
| January 2026 | 83% | 265 |
| February 2026 | 85% | 260 |
| March 2026 | 92% | 290 |
| April 2026 | 85% | 281 |
| May 2026 | 85% | 269 |
Keep nerding
Based on 3,063 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.