Airports › San Jose (SJC) › December 2025
Airport month · December 2025
Norman Y. Mineta San Jose International in December 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In December 2025, reporting carriers scheduled 3,622 domestic departures from Norman Y. Mineta San Jose International (SJC). 78.8% left less than 15 minutes late and 80.3% reached their destination on time; 0.9% were cancelled.
Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so SJC departures were 6.8 points above the national departure figure.
A year earlier, in December 2024, the airport had 4,154 departures with 81.4% leaving on time: a change of −2.6 points, with flights down 13%.
Flights arriving at SJC that month were on time 77.7% of the time (3,618 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 47%, air carrier 33% and national aviation system 17%.
- On time 80.3%
- Arrived 15+ minutes late 18.6%
- Cancelled 0.9%
- Diverted 0.3%
December 2025 against a year earlier, the airport's year and the nation
| Measure | Dec 2025 | Dec 2024 | SJC, 12 months to Jul 2026 | All reported flights, Dec 2025 |
|---|---|---|---|---|
| Departed on time | 78.8% | 81.4% | 80.9% | 72.0% |
| Arrived on time | 80.3% | 82.9% | 81.9% | 71.9% |
| Cancelled | 0.9% | 0.9% | 0.7% | 1.5% |
| Average departure delay (late minutes only) | 13.0 min | 12.2 min | 10.9 min | 21.2 min |
| Scheduled departures a day | 121 | 139 | 119 | 19,410 |
| Scheduled departures | 3,622 | 4,154 | 43,338 | 582,304 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| WN Southwest Airlines | 2,214 | 61% | 77.5% | 5.7 min | 0.6% |
| OO SkyWest Airlines | 673 | 19% | 82.0% | 3.5 min | 1.0% |
| AS Alaska Airlines | 201 | 6% | 86.1% | -3.3 min | 2.0% |
| DL Delta Air Lines | 181 | 5% | 88.4% | -8.4 min | 2.8% |
| AA American Airlines | 140 | 4% | 83.6% | 7.4 min | 0.0% |
| UA United Airlines | 93 | 3% | 90.3% | -6.8 min | 0.0% |
| HA Hawaiian Airlines | 62 | 2% | 93.5% | -2.4 min | 0.0% |
| MQ Envoy Air | 39 | 1% | 87.2% | 0.3 min | 0.0% |
| F9 Frontier Airlines | 19 | 1% | 68.4% | 11.4 min | 5.3% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| SJC–SAN | San Jose to San Diego | 396 | 63.6% | 17.2 min | 1.8% |
| SJC–LAX | San Jose to Los Angeles | 379 | 81.0% | 6.8 min | 1.3% |
| SJC–SEA | San Jose to Seattle | 354 | 78.5% | 5.2 min | 1.1% |
| SJC–LAS | San Jose to Las Vegas | 320 | 80.6% | 4.8 min | 0.0% |
| SJC–PHX | San Jose to Phoenix | 276 | 81.5% | 3.3 min | 0.0% |
| SJC–SNA | San Jose to Santa Ana | 229 | 76.4% | 4.3 min | 0.9% |
| SJC–DEN | San Jose to Denver | 217 | 82.9% | 2.0 min | 0.0% |
| SJC–BUR | San Jose to Burbank | 184 | 82.1% | 1.5 min | 2.7% |
| SJC–PDX | San Jose to Portland | 184 | 87.0% | -3.5 min | 0.0% |
| SJC–SLC | San Jose to Salt Lake City | 137 | 92.0% | -10.3 min | 1.5% |
| SJC–ONT | San Jose to Ontario | 118 | 84.7% | -2.0 min | 0.0% |
| SJC–AUS | San Jose to Austin | 93 | 74.2% | 8.7 min | 1.1% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left SJC on time in December 2025?
78.8% of 3,622 scheduled domestic departures left less than 15 minutes late, and 80.3% reached their destination on time. The national figures that month were 72.0% and 71.9%.
How does that compare with a year earlier?
In December 2024, 81.4% of 4,154 departures left on time and 0.9% were cancelled, against 78.8% and 0.9% in December 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SJC · methodology · corrections.