How often is UA4505 on time?

Across 2 flights on STL → ORD from 2025-09-25 to 2025-09-28, UA4505 arrived within 15 minutes of schedule 100% of the time. The median arrival delay was -28 min, and the worst 10% of flights arrived -25 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

Performance by month

Performance by day of week

Other routes

• UA4505 on SYR → IAD (8 flights)
• UA4505 on ORD → MLI (24 flights)
• UA4505 on PIA → ORD (11 flights)
• UA4505 on MEM → ORD (21 flights)
• UA4505 on ORD → HSV (13 flights)
• UA4505 on IND → ORD (4 flights)
• UA4505 on GRB → ORD (3 flights)
• UA4505 on ORD → SYR (45 flights)
• UA4505 on SYR → EWR (37 flights)
• UA4505 on CVG → ORD (17 flights)
• UA4505 on EWR → PIT (20 flights)
• UA4505 on ROA → ORD (2 flights)
• UA4505 on ORF → EWR (1 flights)
• UA4505 on ORD → DAY (2 flights)
• UA4505 on ORD → STL (5 flights)
• UA4505 on IAD → MDT (2 flights)
• UA4505 on ORD → GRR (4 flights)

Related

• All United Airlines flights on STL → ORD
• Compare airlines on STL → ORD
• United Airlines on the return, ORD → STL