Spirit Airlines is the most reliable airline on the SAN to SJC route with a 83% on-time rate, compared to Frontier Airlines at 78%. Based on 893 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SAN to SJC
San Diego to San Jose — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines83%
SkyWest Airlines82%
Alaska Airlines79%
Southwest Airlines78%
Frontier Airlines78%
SAN to SJC Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 83% | 0.9% | 67m | 893 |
| SkyWest AirlinesOO | 82% | 0.7% | 53m | 4,328 |
| Alaska AirlinesAS | 79% | 1.0% | 38m | 167 |
| Southwest AirlinesWN | 78% | 0.9% | 51m | 14,363 |
| Frontier AirlinesF9Worst | 78% | 0.6% | 61m | 129 |
Route Overview
79%
Overall On-Time
52m
Avg Delay
0.9%
Cancel Rate
19,893
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.