Route
SAN → SLC
San Diego International Airport Salt Lake City International Airport
Alerts at SAN and SLC
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Read the story →
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
- 83.0%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 68 min
- Flights arriving 15+ minutes late
- Flights tracked
- 3,100
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 12%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.5% | 180 |
| October 2025 | 85.3% | 238 |
| November 2025 | 84.0% | 268 |
| December 2025 | 81.3% | 275 |
| January 2026 | 84.0% | 252 |
| February 2026 | 88.2% | 259 |
| March 2026 | 86.9% | 294 |
| April 2026 | 88.5% | 272 |
| May 2026 | 83.2% | 240 |
| June 2026 | 82.1% | 254 |
| July 2026 | 80.1% | 271 |
| August 2026 | 69.2% | 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 | 1,739 | 88.1% | 0.9% | 78 min |
| SkyWest Airlines | 818 | 77.6% | 0.6% | 65 min |
| Southwest Airlines | 436 | 72.8% | 0.2% | 50 min |
| Frontier Airlines | 107 | 84.9% | 0.9% | 109 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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DL1117
4% late · 365 flights
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DL1177
8% late · 364 flights
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DL1210
20% late · 359 flights
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OO3017
31% late · 259 flights
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OO3488
21% late · 227 flights
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DL1296
16% late · 186 flights
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OO3016
22% late · 130 flights
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DL1453
18% late · 110 flights
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DL1252
13% late · 98 flights
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F91902
15% late · 94 flights
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DL1116
11% late · 84 flights
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OO3122
7% late · 70 flights
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WN1413
15% late · 64 flights
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WN1131
44% late · 50 flights
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WN3430
21% late · 39 flights
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DL2366
8% late · 38 flights
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OO3117
15% late · 34 flights
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WN1160
33% late · 33 flights
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DL1567
16% late · 31 flights
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DL1596
10% late · 31 flights
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WN1722
23% late · 30 flights
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WN451
3% late · 30 flights
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OO3024
21% late · 28 flights
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WN1810
36% late · 28 flights
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