Newark to San Juan — airline reliability comparison
JetBlue Airways is the most reliable airline on the EWR to SJU route with a 75% on-time rate, compared to Frontier Airlines at 60%. Based on 2,221 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 |
|---|---|---|---|---|
| JetBlue AirwaysB6Best | 75% | 1.8% | 84m | 2,221 |
| United AirlinesUA | 71% | 1.4% | 75m | 3,940 |
| Spirit AirlinesNK | 66% | 4.7% | 85m | 895 |
| Frontier AirlinesF9Worst | 60% | 2.5% | 107m | 839 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.