American Airlines BUF to ORD on-time performance
American Airlines nonstop flights from Buffalo to Chicago · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
2.3%
11 flights
Avg arrival delay
19 min
117 min when late
Rank on route
#1 of 5
route average 75% on time
Key facts
- American Airlines flights on BUF to ORD arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 2.3% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 5 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (61%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)61%
- Late-arriving aircraft19%
- Air traffic control & airport congestion18%
- Extreme weather2%
- Security0%
Other airlines on BUF to ORD
- United Airlines75% on time · 24 min avg delay
- SkyWest Airlines62% on time · 50 min avg delay
- Envoy Air71% on time · 21 min avg delay
- Republic Airways78% on time · 22 min avg delay
Full BUF to ORD comparison →
American Airlines on-time record across all routes →
476 American Airlines flights tracked on this route; 11 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.