Which airline has the most delays DTW to PHL?

Frontier Airlines has the lowest on-time rate on the DTW to PHL route at 58%.

Which airline cancels the most flights DTW to PHL?

Frontier Airlines has the highest cancellation rate on this route at 4.9%.

Best Airline: DTW to PHL

Q: Which airline is most reliable DTW to PHL?

Endeavor Air is the most reliable airline on the DTW to PHL route with a 89% on-time arrival rate.

Detroit to Philadelphia — airline reliability comparison

Endeavor Air is the most reliable airline on the DTW to PHL route with a 89% on-time rate, compared to Frontier Airlines at 58%. Based on 163 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

Endeavor Air89%

Republic Airways86%

Spirit Airlines85%

Delta Air Lines84%

PSA Airlines83%

American Airlines78%

SkyWest Airlines76%

Frontier Airlines58%

DTW to PHL Airline Comparison

Airline	On-Time %	Cancel %	Avg Delay	Flights
Endeavor Air9EBest	89%	0.0%	60m	163
Republic AirwaysYX	86%	3.2%	70m	366
Spirit AirlinesNK	85%	0.7%	59m	897
Delta Air LinesDL	84%	1.2%	74m	5,158
PSA AirlinesOH	83%	3.8%	107m	2,006
American AirlinesAA	78%	1.9%	96m	1,339
SkyWest AirlinesOO	76%	1.4%	75m	304
Frontier AirlinesF9Worst	58%	4.9%	78m	182

Route Overview

82%

Overall On-Time

84m

Avg Delay

2.2%

Cancel Rate

10,642

Total Flights

DTW to PHL Route Details Return: PHL to DTW

DTW Airport PHL Airport

Flying out of DTW? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

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