Republic Airways SDF to BOS on-time performance
Republic Airways nonstop flights from Louisville to Boston · Aug 2025 – Jul 2026Regional airline operating flights for American Eagle, Delta Connection and United Express.
On-time arrivals
77%
arrived < 15 min late
Cancelled
2.7%
13 flights
Avg arrival delay
18 min
75 min when late
Rank on route
#1 of 3
route average 71% on time
Key facts
- Republic Airways flights on SDF to BOS arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 2.7% were cancelled, and 10% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 71% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (57%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion57%
- Late-arriving aircraft22%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather4%
- Security0%
Other airlines on SDF to BOS
- Envoy Air60% on time · 24 min avg delay
- Delta Air Lines0% on time · 43 min avg delay
Full SDF to BOS comparison →
Republic Airways on-time record across all routes →
484 Republic Airways flights tracked on this route; 13 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.