Salt Lake City to Newark — airline reliability comparison
Delta Air Lines is the most reliable airline on the SLC to EWR route with a 77% on-time rate, compared to Spirit Airlines at 56%. Based on 2,398 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 | 77% | 1.9% | 66m | 2,398 |
| United AirlinesUA | 75% | 1.6% | 88m | 1,923 |
| Spirit AirlinesNKWorst | 56% | 3.5% | 92m | 57 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.