Alaska Airlines is the most reliable airline on the SJC to KOA route with a 91% on-time rate, compared to Southwest Airlines at 89%. Based on 882 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SJC to KOA
San Jose to Kona — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines91%
Southwest Airlines89%
SJC to KOA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 91% | 0.8% | 35m | 882 |
| Southwest AirlinesWNWorst | 89% | 0.0% | 45m | 325 |
Route Overview
90%
Overall On-Time
42m
Avg Delay
0.5%
Cancel Rate
1,209
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.