DTW → PHL flight reliability · OnTimeStats

Historical on-time performance

Detroit to Philadelphia

453 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–PHL arrive on time 77% of the time over the last 12 months.

On-time rate77%arrived within 15 min

p90 delay60 min1 in 10 flights is worse (tail risk)

Cancelled1.9%of scheduled flights

based on 2,513 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

Airline	On-time	Median	p90	Cancel	Flights
Republic Airways⚠ low data	66%	on time	105 min	5.3%	94
PSA Airlines	73%	on time	65 min	5.3%	529
Delta Air Lines	80%	on time	50 min	0.6%	1,493
SkyWest Airlines⚠ low data	82%	on time	25 min	0.0%	33
American Airlines	69%	on time	80 min	1.9%	263
Spirit Airlines⚠ low data	84%	on time	30 min	2.0%	101

Republic Airways
On-time66%
Medianon time
p90105 min
Cancel5.3%
Flights94
PSA Airlines
On-time73%
Medianon time
p9065 min
Cancel5.3%
Flights529
Delta Air Lines
On-time80%
Medianon time
p9050 min
Cancel0.6%
Flights1,493
SkyWest Airlines
On-time82%
Medianon time
p9025 min
Cancel0.0%
Flights33
American Airlines
On-time69%
Medianon time
p9080 min
Cancel1.9%
Flights263
Spirit Airlines
On-time84%
Medianon time
p9030 min
Cancel2.0%
Flights101

Why flights run late

Delay causes

Airline39%
Weather4%
Air traffic (NAS)23%
Late aircraft34%
Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DTW → PHL

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

Mornings are the most reliable time of day to fly this route — 87% on time.

Mornings87% on time · p90 15 min · 2,710 flights
Middays84% on time · p90 30 min · 2,195 flights
Overnights79% on time · p90 45 min · 1,232 flights
Afternoons74% on time · p90 55 min · 1,978 flights
Evenings66% on time · p90 80 min · 862 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 78% to 84% on time.

Tuesdays84% on time · p90 20 min · 1,195 flights
Wednesdays83% on time · p90 30 min · 1,209 flights
Mondays80% on time · p90 45 min · 1,360 flights
Thursdays80% on time · p90 40 min · 1,362 flights
Saturdays80% on time · p90 35 min · 1,136 flights
Fridays79% on time · p90 45 min · 1,353 flights
Sundays78% on time · p90 50 min · 1,362 flights

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Related pages

Delay predictorfor this route→DTW airportDetroit→PHL airportPhiladelphia→Republic Airways on this routecarrier detail→Republic Airwaysairline profile→