Republic Airways BOS to ORD on-time performance
Republic Airways nonstop flights from Boston to Chicago · Aug 2025 – Jul 2026Regional airline operating flights for American Eagle, Delta Connection and United Express.
On-time arrivals
71%
arrived < 15 min late
Cancelled
6.0%
54 flights
Avg arrival delay
24 min
81 min when late
Rank on route
#4 of 6
route average 73% on time
Key facts
- Republic Airways flights on BOS to ORD arrived on time 71% of the time in Aug 2025 – Jul 2026.
- 6% were cancelled, and 13% arrived an hour or more late.
- That ranks #4 of 6 airlines on this route, which averaged 73% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (38%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion38%
- Late-arriving aircraft31%
- Airline (crew, maintenance, cleaning, fueling)20%
- Extreme weather11%
- Security0%
Other airlines on BOS to ORD
- United Airlines76% on time · 22 min avg delay
- American Airlines73% on time · 26 min avg delay
- Delta Air Lines66% on time · 26 min avg delay
- JetBlue70% on time · 23 min avg delay
- Envoy Air77% on time · 24 min avg delay
Full BOS to ORD comparison →
Republic Airways on-time record across all routes →
906 Republic Airways flights tracked on this route; 54 cancelled, 3 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.