Delta Air Lines DTW to BOS on-time performance
Delta Air Lines nonstop flights from Detroit to Boston · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
1.9%
33 flights
Avg arrival delay
18 min
66 min when late
Rank on route
#2 of 4
route average 74% on time
Key facts
- Delta Air Lines flights on DTW to BOS arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 10% arrived an hour or more late.
- That ranks #2 of 4 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (45%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion45%
- Airline (crew, maintenance, cleaning, fueling)39%
- Late-arriving aircraft15%
- Extreme weather2%
- Security0%
Other airlines on DTW to BOS
- JetBlue73% on time · 24 min avg delay
- Spirit Airlines77% on time · 15 min avg delay
- Republic Airways0% on time · 20 min avg delay
Full DTW to BOS comparison →
Delta Air Lines on-time record across all routes →
1,711 Delta Air Lines flights tracked on this route; 33 cancelled, 1 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.