Flight Check

Best Airline: PHL to IAD

Philadelphia to Washington — airline reliability comparison

Republic Airways is the most reliable airline on the PHL to IAD route with a 85% on-time rate. Based on 201 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

Republic Airways85%

PHL to IAD Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest85%2.7%53m201

Route Overview

88%
Overall On-Time
61m
Avg Delay
4%
Cancel Rate
201
Total Flights
PHL to IAD Route DetailsReturn: IAD to PHL
PHL AirportIAD Airport

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