United Airlines ORD to SDF on-time performance
United Airlines nonstop flights from Chicago to Louisville · Aug 2025 – Jul 2026
On-time arrivals
20%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
36 min
45 min when late
Rank on route
#5 of 5
route average 76% on time
Key facts
- United Airlines flights on ORD to SDF arrived on time 20% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 20% arrived an hour or more late.
- That ranks #5 of 5 airlines on this route, which averaged 76% 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 aircraft43%
- Airline (crew, maintenance, cleaning, fueling)0%
- Extreme weather0%
- Security0%
Other airlines on ORD to SDF
- Republic Airways76% on time · 19 min avg delay
- SkyWest Airlines72% on time · 19 min avg delay
- Envoy Air87% on time · 8 min avg delay
- American Airlines50% on time · 35 min avg delay
- PSA Airlines– on time · – avg delay
Full ORD to SDF comparison →
United Airlines on-time record across all routes →
5 United Airlines 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.