How often is UA4388 on time?

Across 4 flights on ORD → ABE from 2026-05-11 to 2026-05-18, UA4388 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +40 min, and the worst 10% of flights arrived +72 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

• UA4388 on ORD → CVG (6 flights)
• UA4388 on IAD → STL (35 flights)
• UA4388 on ORD → CID (223 flights)
• UA4388 on SCE → ORD (6 flights)
• UA4388 on RIC → ORD (1 flights)
• UA4388 on ORD → PIA (23 flights)
• UA4388 on EWR → CLE (3 flights)
• UA4388 on CAE → ORD (36 flights)
• UA4388 on IAD → CLT (2 flights)
• UA4388 on TVC → ORD (18 flights)
• UA4388 on STL → ORD (1 flights)
• UA4388 on TYS → ORD (1 flights)

Related

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