Route · SAN → SLC · 2020–2025 BTS data
San Diego to Salt Lake City
The SAN–SLC corridor (San Diego, CA → Salt Lake City, UT) runs ahead of the national average, served by 21 carriers across roughly 626 miles.
Data updated 2026-06-13
- 86.2%
- On-time
- +7.2 pts
- vs US avg
- 73 min
- Delay when late
- 14,228
- Flights
Cancelled
0.5%
Best Month
Apr 2024 88%
Worst Month
Jun 2024 76%
Distance
626 mi
Carriers
21
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 275 | 51 | 1 | 1 | DL,WN,F9,OO |
| Nov 2025 | 268 | 42 | 5 | 0 | OO,DL,F9,WN |
| Oct 2025 | 238 | 35 | 0 | 0 | DL,OO,WN,F9 |
| Sep 2025 | 180 | 24 | 2 | 0 | WN,DL,F9 |
| Aug 2025 | 208 | 36 | 0 | 0 | OO,WN,F9,DL |
| Jul 2025 | 221 | 46 | 0 | 1 | DL,OO,WN,F9 |
| Jun 2025 | 215 | 42 | 0 | 0 | DL,OO,WN,F9 |
| May 2025 | 211 | 33 | 0 | 0 | OO,WN,DL |
| Apr 2025 | 229 | 31 | 0 | 0 | DL,OO,WN |
| Mar 2025 | 236 | 36 | 0 | 0 | DL,OO,WN |
| Feb 2025 | 194 | 33 | 0 | 0 | OO,WN,DL |
| Jan 2025 | 209 | 34 | 0 | 0 | OO,WN,DL |
| Dec 2024 | 229 | 46 | 2 | 0 | DL,OO,WN |
| Nov 2024 | 195 | 26 | 0 | 0 | OO,WN,DL |
| Oct 2024 | 212 | 50 | 0 | 0 | OO,WN,DL |
| Sep 2024 | 202 | 38 | 0 | 1 | WN,OO,DL,NK |
| Aug 2024 | 241 | 39 | 3 | 1 | DL,NK,WN,OO |
| Jul 2024 | 242 | 53 | 10 | 0 | DL,NK,OO,WN |
| Jun 2024 | 220 | 52 | 0 | 0 | DL,NK,OO,WN |
| May 2024 | 209 | 27 | 0 | 0 | DL,OO,WN |
| Apr 2024 | 219 | 26 | 0 | 0 | DL,OO,WN |
| Mar 2024 | 232 | 41 | 1 | 0 | DL,OO,WN |
| Feb 2024 | 199 | 26 | 0 | 0 | DL,OO,WN |
| Jan 2024 | 222 | 38 | 0 | 0 | DL,WN,OO |
Cancellation Rate
0.5%
24 of 5,306 flights
Diversion Rate
0.1%
4 of 5,306 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SAN - San Diego
Full on-time, delay-cause, and seasonal performance for San Diego, CA.
Origin airport →SLC - Salt Lake City
Full on-time, delay-cause, and seasonal performance for Salt Lake City, UT.
Destination airport →Compare the two airports
See SAN and SLC side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SAN–SLC.
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What the Data Says About SAN to SLC
San Diego to Salt Lake City (SAN to SLC) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 86.2% on-time rate across 14,228 flights, with delays that do happen averaging 73.1 minutes. The corridor runs roughly 626 miles and is served by 21 carriers. Over the most recent 24 months, 24 of 5,306 flights were cancelled (0.5%) and 4 diverted (0.1%).
Monthly performance varies moderately here: Apr 2024 was the strongest month at 88% on-time versus Jun 2024 at 76%, a 12-point difference.
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.