How often is UA4487 on time?

Across 102 flights on ORD → STL from 2025-10-26 to 2026-02-11, UA4487 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +130 min or later. 3% 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

• UA4487 on IAD → PWM (1 flights)
• UA4487 on IAD → CVG (28 flights)
• UA4487 on EWR → CVG (2 flights)
• UA4487 on STL → ORD (39 flights)
• UA4487 on EWR → BGR (27 flights)
• UA4487 on EWR → DTW (5 flights)
• UA4487 on ORD → GRB (4 flights)
• UA4487 on RDU → IAD (3 flights)
• UA4487 on ORD → BHM (5 flights)
• UA4487 on SAV → IAD (1 flights)
• UA4487 on RIC → ORD (60 flights)
• UA4487 on PWM → IAD (2 flights)
• UA4487 on SCE → ORD (14 flights)
• UA4487 on DAY → ORD (4 flights)

Related

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