Delta Air Lines BOS to SDF on-time performance
Delta Air Lines nonstop flights from Boston to Louisville · Aug 2025 – Jul 2026
On-time arrivals
0%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
25 min
25 min when late
Rank on route
#3 of 3
route average 85% on time
Key facts
- Delta Air Lines flights on BOS to SDF arrived on time 0% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 0% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 85% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (59%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)59%
- Air traffic control & airport congestion41%
- Late-arriving aircraft0%
- Extreme weather0%
- Security0%
Other airlines on BOS to SDF
- Republic Airways84% on time · 8 min avg delay
- Envoy Air88% on time · 10 min avg delay
Full BOS to SDF 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.