Route · SLC → SAN · 2020–2025 BTS data
Salt Lake City to San Diego
The SLC–SAN corridor (Salt Lake City, UT → San Diego, CA) runs ahead of the national average, served by 19 carriers across roughly 626 miles.
Data updated 2026-06-13
- 84%
- On-time
- +5 pts
- vs US avg
- 64 min
- Delay when late
- 14,238
- Flights
Cancelled
0.5%
Best Month
Apr 2024 90%
Worst Month
Sep 2024 74%
Distance
626 mi
Carriers
19
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 274 | 60 | 2 | 2 | DL,WN,F9,OO |
| Nov 2025 | 268 | 44 | 7 | 2 | OO,DL,F9,WN |
| Oct 2025 | 238 | 47 | 0 | 1 | DL,OO,WN,F9 |
| Sep 2025 | 180 | 20 | 2 | 1 | WN,DL,F9 |
| Aug 2025 | 208 | 39 | 0 | 0 | OO,WN,F9,DL |
| Jul 2025 | 221 | 38 | 0 | 1 | DL,OO,WN,F9 |
| Jun 2025 | 215 | 41 | 0 | 0 | DL,OO,WN,F9 |
| May 2025 | 211 | 24 | 0 | 0 | DL,OO,WN |
| Apr 2025 | 229 | 37 | 0 | 0 | DL,OO,WN |
| Mar 2025 | 235 | 41 | 0 | 0 | OO,WN,DL |
| Feb 2025 | 194 | 45 | 0 | 0 | OO,WN,DL |
| Jan 2025 | 209 | 32 | 0 | 0 | OO,WN,DL |
| Dec 2024 | 229 | 57 | 2 | 2 | DL,OO,WN |
| Nov 2024 | 195 | 33 | 0 | 0 | OO,WN,DL |
| Oct 2024 | 212 | 39 | 0 | 0 | OO,WN,DL |
| Sep 2024 | 203 | 53 | 0 | 0 | WN,OO,DL,NK |
| Aug 2024 | 240 | 57 | 3 | 1 | DL,NK,WN,OO |
| Jul 2024 | 242 | 56 | 10 | 0 | DL,NK,OO,WN |
| Jun 2024 | 221 | 53 | 0 | 3 | DL,NK,OO,WN |
| May 2024 | 212 | 29 | 0 | 0 | DL,OO,WN |
| Apr 2024 | 222 | 23 | 0 | 0 | DL,OO,WN |
| Mar 2024 | 232 | 53 | 1 | 0 | DL,OO,WN |
| Feb 2024 | 199 | 37 | 0 | 0 | DL,OO,WN |
| Jan 2024 | 222 | 47 | 0 | 0 | DL,WN,OO |
Cancellation Rate
0.5%
27 of 5,311 flights
Diversion Rate
0.2%
13 of 5,311 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Origin airport →SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Destination airport →Compare the two airports
See SLC and SAN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SLC–SAN.
Routes with a similar on-time rate
What the Data Says About SLC to SAN
Bureau of Transportation Statistics records show Salt Lake City to San Diego (SLC to SAN) running a 84% on-time rate over 14,238 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 64.0 minutes. The 626-mile corridor is served by 19 carriers, and over the last 24 months 0.5% of 5,311 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 90% on-time, while Sep 2024 came in at just 74% - a 16-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.