Delta Air Lines SDF to BOS on-time performance
Delta Air Lines nonstop flights from Louisville to Boston · Aug 2025 – Jul 2026
On-time arrivals
0%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
43 min
43 min when late
Rank on route
#3 of 3
route average 71% on time
Key facts
- Delta Air Lines flights on SDF to BOS arrived on time 0% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 50% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 71% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)52%
- Air traffic control & airport congestion48%
- Late-arriving aircraft0%
- Extreme weather0%
- Security0%
Other airlines on SDF to BOS
- Republic Airways77% on time · 18 min avg delay
- Envoy Air60% on time · 24 min avg delay
Full SDF to BOS comparison →
Delta Air Lines on-time record across all routes →
2 Delta Air Lines flights tracked on this route; 0 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.