Route
SLC → SAN
Salt Lake City International Airport San Diego International Airport
Alerts at SLC and SAN
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Watch Ground Delay Program SAN
Ground Delay Program at San Diego International Airport (SAN): Average 37 minutes, up to 1 hour and 11 minutes
Reason: airport volume
Airport status
How punctual is this route?
- On-time arrivals
- 80.9%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 60 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,097
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 34%
- Air traffic control & airport 30%
- Late-arriving aircraft 29%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 88.7% | 180 |
| October 2025 | 80.2% | 238 |
| November 2025 | 83.0% | 268 |
| December 2025 | 77.8% | 274 |
| January 2026 | 84.6% | 251 |
| February 2026 | 83.9% | 259 |
| March 2026 | 91.0% | 293 |
| April 2026 | 84.2% | 272 |
| May 2026 | 85.3% | 240 |
| June 2026 | 76.5% | 254 |
| July 2026 | 73.3% | 271 |
| August 2026 | 66.0% | 297 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| Delta Air Lines | 1,738 | 82.2% | 0.9% | 61 min |
| SkyWest Airlines | 815 | 82.2% | 0.9% | 62 min |
| Southwest Airlines | 436 | 72.5% | 0.5% | 54 min |
| Frontier Airlines | 107 | 83.7% | 2.8% | 58 min |
| Alaska Airlines | 1 | 100.0% | 0.0% | — |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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DL1296
19% late · 365 flights
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DL1177
7% late · 364 flights
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DL1202
18% late · 364 flights
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DL1210
25% late · 364 flights
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OO3018
8% late · 277 flights
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DL1252
20% late · 262 flights
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OO3019
25% late · 254 flights
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F91901
17% late · 102 flights
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OO3020
15% late · 70 flights
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OO3123
24% late · 70 flights
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WN3608
21% late · 58 flights
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WN3754
50% late · 52 flights
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WN4309
37% late · 49 flights
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OO3116
15% late · 34 flights
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WN2137
12% late · 33 flights
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OO3010
28% late · 29 flights
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OO3312
11% late · 28 flights
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WN1708
18% late · 28 flights
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WN2542
22% late · 27 flights
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WN3964
75% late · 24 flights
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OO3488
14% late · 22 flights
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WN2705
27% late · 22 flights
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