Republic Airways STL to ORD on-time performance
Republic Airways nonstop flights from St. Louis to Chicago · Aug 2025 – Jul 2026Regional airline operating flights for American Eagle, Delta Connection and United Express.
On-time arrivals
75%
arrived < 15 min late
Cancelled
4.8%
21 flights
Avg arrival delay
20 min
77 min when late
Rank on route
#3 of 5
route average 73% on time
Key facts
- Republic Airways flights on STL to ORD arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 4.8% were cancelled, and 10% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 73% on time overall.
- The largest source of delay minutes was late-arriving aircraft (54%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft54%
- Air traffic control & airport congestion31%
- Airline (crew, maintenance, cleaning, fueling)14%
- Extreme weather0%
- Security0%
Other airlines on STL to ORD
- SkyWest Airlines64% on time · 39 min avg delay
- Envoy Air75% on time · 24 min avg delay
- United Airlines72% on time · 24 min avg delay
- American Airlines81% on time · 26 min avg delay
Full STL to ORD comparison →
Republic Airways on-time record across all routes →
437 Republic Airways flights tracked on this route; 21 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.