Delta Air Lines DTW to PWM on-time performance
Delta Air Lines nonstop flights from Detroit to Portland · Aug 2025 – Jul 2026
On-time arrivals
86%
arrived < 15 min late
Cancelled
1.0%
4 flights
Avg arrival delay
10 min
68 min when late
Rank on route
#1 of 3
route average 83% on time
Key facts
- Delta Air Lines flights on DTW to PWM arrived on time 86% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 83% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (67%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)67%
- Late-arriving aircraft16%
- Air traffic control & airport congestion16%
- Extreme weather2%
- Security0%
Other airlines on DTW to PWM
- SkyWest Airlines74% on time · 24 min avg delay
- Republic Airways78% on time · 14 min avg delay
Full DTW to PWM comparison →
Delta Air Lines on-time record across all routes →
404 Delta Air Lines flights tracked on this route; 4 cancelled, 2 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.