Which airline is most reliable for DTW (Detroit) to PHL (Philadelphia)?

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

How often are flights delayed from DTW to PHL?

About 21% of flights from DTW to PHL experience delays. 79% arrive on time.

What's the average delay on DTW to PHL flights?

When flights from DTW to PHL are delayed, the average delay is approximately 84 minutes.

Is a short connection safe after a DTW to PHL flight?

With 79% of DTW to PHL flights arriving on time and an average delay of 84 minutes when late, a connection under 60 minutes at PHL is risky. We recommend at least 75-90 minutes for domestic connections after this route.

DTW → PHL

DTW (Detroit) to PHL (Philadelphia)

DTW (Detroit) to PHL (Philadelphia) flights arrive on time 79% of the time. The most reliable airline on this route is Endeavor Air at 89%. The average delay is 84 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Source: Bureau of Transportation Statistics. Updated August 2026.

DTW → PHL on-time performance by month

JanFebMarAprMayJunJulAugSepOctNovDec

Worse

Better

This route is on time most of the time. About 79% of flights arrive on schedule.

Delays on this route are most often caused by the airline (crew, maintenance, or boarding).

Accurate?

Endeavor Air is significantly more reliable on this route at 89% on time vs Frontier Airlines at 58%.

Airline Comparison

Endeavor Air leads at 89% on time; Frontier Airlines trails at 58%.

Accurate?

Good to know

Departing from DTW

80% on time

Expect ~18 min sitting on the taxiway after your gate pushes back. DTW has long runway queues.

TSA is currently ~11 min. Best time: 4 AM (about 5 min).

More about DTW →

Arriving at PHL

77% on time

When flights into PHL are late, the average delay is 84 minutes. Build buffer if you have ground plans.

If connecting at PHL: TSA is ~22 min right now. Allow at least 60 minutes for a domestic connection.

PHL has a 2.4% cancellation rate — keep the airline app handy for rebooking.

More about PHL →Connection times at PHL →

Flight cancelled or delayed?

Check what Endeavor Air owes you — refund rights, action plan, complaint email. Free.

Flying out of DTW? We'll brief you.

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

DTW Airport PHL Airport

Check the return: PHL → DTW

Flying this route?

Enter your flight number for a personalized delay briefing.

Check your flight

Know someone flying soon?

Send them the link — delay data, TSA waits, weather, all free.

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