United Airlines TUS to ORD on-time performance
United Airlines nonstop flights from Tucson to Chicago · Aug 2025 – Jul 2026
On-time arrivals
75%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
25 min
95 min when late
Rank on route
#4 of 4
route average 77% on time
Key facts
- United Airlines flights on TUS to ORD arrived on time 75% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 13% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 77% on time overall.
- The largest source of delay minutes was late-arriving aircraft (29%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft29%
- Extreme weather27%
- Air traffic control & airport congestion25%
- Airline (crew, maintenance, cleaning, fueling)19%
- Security0%
Other airlines on TUS to ORD
- American Airlines75% on time · 28 min avg delay
- SkyWest Airlines77% on time · 16 min avg delay
- Envoy Air100% on time · 1 min avg delay
Full TUS to ORD comparison →
United Airlines on-time record across all routes →
77 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.