Flight Check

Best Airline: SFO to PHL

San Francisco to Philadelphia — airline reliability comparison

United Airlines is the most reliable airline on the SFO to PHL route with a 88% on-time rate, compared to American Airlines at 82%. Based on 1,905 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.

On-Time Rate by Airline

United Airlines88%
American Airlines82%

SFO to PHL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest88%0.6%49m1,905
American AirlinesAAWorst82%1.4%82m3,894

Route Overview

84%
Overall On-Time
74m
Avg Delay
1.1%
Cancel Rate
5,799
Total Flights
SFO to PHL Route DetailsReturn: PHL to SFO
SFO AirportPHL Airport

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