Delta Air Lines MKE to BOS on-time performance
Delta Air Lines nonstop flights from Milwaukee to Boston · Aug 2025 – Jul 2026
On-time arrivals
59%
arrived < 15 min late
Cancelled
4.3%
1 flights
Avg arrival delay
24 min
58 min when late
Rank on route
#3 of 3
route average 72% on time
Key facts
- Delta Air Lines flights on MKE to BOS arrived on time 59% of the time in Aug 2025 – Jul 2026.
- 4.3% were cancelled, and 9% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 72% on time overall.
- The largest source of delay minutes was extreme weather (41%).
On-time trend by month
Why this airline's flights were late
- Extreme weather41%
- Air traffic control & airport congestion27%
- Airline (crew, maintenance, cleaning, fueling)22%
- Late-arriving aircraft10%
- Security0%
Other airlines on MKE to BOS
- Republic Airways74% on time · 17 min avg delay
- JetBlue69% on time · 19 min avg delay
Full MKE to BOS comparison →
Delta Air Lines on-time record across all routes →
23 Delta Air Lines flights tracked on this route; 1 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.