Delta Air Lines DTW to PHL on-time performance
Delta Air Lines nonstop flights from Detroit to Philadelphia · Aug 2025 – Jul 2026
On-time arrivals
80%
arrived < 15 min late
Cancelled
2.4%
38 flights
Avg arrival delay
16 min
74 min when late
Rank on route
#2 of 7
route average 79% on time
Key facts
- Delta Air Lines flights on DTW to PHL arrived on time 80% of the time in Aug 2025 – Jul 2026.
- 2.4% were cancelled, and 9% arrived an hour or more late.
- That ranks #2 of 7 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (46%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)46%
- Air traffic control & airport congestion32%
- Late-arriving aircraft19%
- Extreme weather3%
- Security0%
Other airlines on DTW to PHL
- PSA Airlines78% on time · 22 min avg delay
- American Airlines80% on time · 31 min avg delay
- Spirit Airlines80% on time · 17 min avg delay
- Frontier Airlines58% on time · 45 min avg delay
- SkyWest Airlines62% on time · 36 min avg delay
- Republic Airways95% on time · 4 min avg delay
Full DTW to PHL comparison →
Delta Air Lines on-time record across all routes →
1,578 Delta Air Lines flights tracked on this route; 38 cancelled, 0 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.