Route
SJC → SAN
Mineta San Jose International Airport San Diego International Airport
Alerts at SJC and SAN
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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
- 68.3%
- Less than 15 minutes late
- Cancelled
- 1.1%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 5,004
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 43%
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 18%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 78.5% | 398 |
| October 2025 | 66.6% | 434 |
| November 2025 | 72.5% | 452 |
| December 2025 | 64.9% | 396 |
| January 2026 | 81.4% | 318 |
| February 2026 | 80.1% | 307 |
| March 2026 | 77.7% | 406 |
| April 2026 | 76.2% | 454 |
| May 2026 | 66.1% | 439 |
| June 2026 | 59.7% | 463 |
| July 2026 | 60.1% | 478 |
| August 2026 | 46.8% | 459 |
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 |
|---|---|---|---|---|
| Southwest Airlines | 3,745 | 66.5% | 1.0% | 51 min |
| SkyWest Airlines | 1,148 | 73.0% | 1.4% | 54 min |
| Alaska Airlines | 111 | 83.6% | 0.9% | 52 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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OO3499
30% late · 279 flights
-
OO3458
14% late · 206 flights
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OO3429
36% late · 153 flights
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OO3014
18% late · 104 flights
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AS1623
25% late · 70 flights
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OO3059
30% late · 70 flights
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OO3211
35% late · 68 flights
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WN3556
36% late · 66 flights
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WN1335
16% late · 64 flights
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WN3785
39% late · 64 flights
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WN663
32% late · 63 flights
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WN3702
51% late · 60 flights
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WN4513
65% late · 60 flights
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WN2592
31% late · 58 flights
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WN4079
55% late · 58 flights
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WN4138
2% late · 58 flights
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WN543
26% late · 58 flights
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WN1291
22% late · 55 flights
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WN3489
7% late · 55 flights
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WN352
4% late · 53 flights
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WN4297
56% late · 53 flights
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WN3701
56% late · 52 flights
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WN4265
50% late · 52 flights
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WN3698
44% late · 51 flights
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