New York to San Diego — airline reliability comparison
Delta Air Lines is the most reliable airline on the JFK to SAN route with a 82% on-time rate, compared to Alaska Airlines at 78%. Based on 3,600 flights tracked.
This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 82% | 1.6% | 69m | 3,600 |
| JetBlue AirwaysB6 | 82% | 1.5% | 57m | 2,724 |
| Alaska AirlinesASWorst | 78% | 2.2% | 61m | 2,353 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.