Route
SAN → SJC
San Diego International Airport Mineta San Jose International Airport
Alerts at SAN and SJC
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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
- 74.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4,973
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 69%
- Airline (crew, maintenance, cleaning) 22%
- Air traffic control & airport 8%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.1% | 398 |
| October 2025 | 74.5% | 433 |
| November 2025 | 78.4% | 453 |
| December 2025 | 73.2% | 397 |
| January 2026 | 86.7% | 317 |
| February 2026 | 85.4% | 309 |
| March 2026 | 82.3% | 406 |
| April 2026 | 76.7% | 449 |
| May 2026 | 71.9% | 431 |
| June 2026 | 67.6% | 448 |
| July 2026 | 66.0% | 476 |
| August 2026 | 60.8% | 456 |
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 | 3,752 | 72.6% | 0.8% | 52 min |
| SkyWest Airlines | 1,112 | 80.7% | 1.3% | 60 min |
| Alaska Airlines | 109 | 80.6% | 0.9% | 42 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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OO3359
10% late · 290 flights
-
OO3459
21% late · 199 flights
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OO3498
19% late · 186 flights
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OO3429
25% late · 175 flights
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AS1624
21% late · 69 flights
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OO3068
32% late · 69 flights
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OO3029
35% late · 66 flights
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WN1863
6% late · 64 flights
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WN2042
29% late · 64 flights
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WN4258
24% late · 60 flights
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WN1821
42% late · 59 flights
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WN4539
26% late · 59 flights
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WN2337
45% late · 58 flights
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WN3422
0% late · 58 flights
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WN4122
33% late · 58 flights
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WN553
18% late · 58 flights
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WN2277
19% late · 57 flights
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WN3093
2% late · 57 flights
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WN3118
4% late · 57 flights
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WN3425
5% late · 55 flights
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WN3536
0% late · 52 flights
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WN3537
10% late · 52 flights
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WN3539
48% late · 52 flights
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WN3542
50% late · 52 flights
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