United Airlines PHL to ORD on-time performance
United Airlines nonstop flights from Philadelphia to Chicago · Aug 2025 – Jul 2026
On-time arrivals
74%
arrived < 15 min late
Cancelled
2.2%
40 flights
Avg arrival delay
28 min
102 min when late
Rank on route
#3 of 4
route average 73% on time
Key facts
- United Airlines flights on PHL to ORD arrived on time 74% of the time in Aug 2025 – Jul 2026.
- 2.2% were cancelled, and 10% arrived an hour or more late.
- That ranks #3 of 4 airlines on this route, which averaged 73% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (55%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion55%
- Late-arriving aircraft23%
- Airline (crew, maintenance, cleaning, fueling)19%
- Extreme weather3%
- Security0%
Other airlines on PHL to ORD
- American Airlines74% on time · 26 min avg delay
- Frontier Airlines57% on time · 55 min avg delay
- Republic Airways92% on time · 4 min avg delay
Full PHL to ORD comparison →
United Airlines on-time record across all routes →
1,810 United Airlines flights tracked on this route; 40 cancelled, 7 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.