OnTimeRoutes
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Envoy Air BOS to SDF on-time performance

Envoy Air nonstop flights from Boston to Louisville · Aug 2025 – Jul 2026Regional airline operating American Eagle flights.

On-time arrivals
88%
arrived < 15 min late
Cancelled
0.9%
2 flights
Avg arrival delay
10 min
72 min when late
Rank on route
#1 of 3
route average 85% on time

Key facts

  • Envoy Air flights on BOS to SDF arrived on time 88% of the time in Aug 2025 – Jul 2026.
  • 0.9% were cancelled, and 4% arrived an hour or more late.
  • That ranks #1 of 3 airlines on this route, which averaged 85% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (58%).

On-time trend by month

70%85%100%August 2025: 90.9% on time, 0.0% cancelledAug ’25September 2025: 93.3% on time, 0.0% cancelledSep ’25October 2025: 89.3% on time, 0.0% cancelledOct ’25February 2026: 83.3% on time, 14.3% cancelledFeb ’26March 2026: 92.6% on time, 0.0% cancelledMar ’26April 2026: 86.7% on time, 0.0% cancelledApr ’26May 2026: 85.2% on time, 0.0% cancelledMay ’26June 2026: 86.4% on time, 0.0% cancelledJun ’26July 2026: 81.8% on time, 0.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft58%
  • Airline (crew, maintenance, cleaning, fueling)27%
  • Air traffic control & airport congestion15%
  • Extreme weather0%
  • Security0%

Other airlines on BOS to SDF

222 Envoy Air flights tracked on this route; 2 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.