Flight Check

Best Airline: PHL to SLC

Philadelphia to Salt Lake City — airline reliability comparison

Delta Air Lines is the most reliable airline on the PHL to SLC route with a 82% on-time rate, compared to American Airlines at 63%. Based on 2,032 flights tracked.

This route involves weather-prone airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines82%
American Airlines63%

PHL to SLC Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest82%1.2%79m2,032
American AirlinesAAWorst63%5.9%96m388

Route Overview

78%
Overall On-Time
82m
Avg Delay
1.9%
Cancel Rate
2,454
Total Flights
PHL to SLC Route DetailsReturn: SLC to PHL
PHL AirportSLC Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.