Delta Air Lines BOS to DTW on-time performance
Delta Air Lines nonstop flights from Boston to Detroit · Aug 2025 – Jul 2026
On-time arrivals
79%
arrived < 15 min late
Cancelled
2.2%
37 flights
Avg arrival delay
17 min
75 min when late
Rank on route
#3 of 4
route average 77% on time
Key facts
- Delta Air Lines flights on BOS to DTW arrived on time 79% of the time in Aug 2025 – Jul 2026.
- 2.2% were cancelled, and 8% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (46%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft46%
- Airline (crew, maintenance, cleaning, fueling)36%
- Air traffic control & airport congestion16%
- Extreme weather2%
- Security0%
Other airlines on BOS to DTW
- JetBlue71% on time · 23 min avg delay
- Spirit Airlines85% on time · 11 min avg delay
- Republic Airways100% on time · 0 min avg delay
Full BOS to DTW comparison →
Delta Air Lines on-time record across all routes →
1,713 Delta Air Lines flights tracked on this route; 37 cancelled, 3 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.