How often is UA3603 on time?

Across 11 flights on GRR → EWR from 2026-05-21 to 2026-05-31, UA3603 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +5 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

• UA3603 on EWR → ORF (61 flights)
• UA3603 on EWR → BOS (1 flights)
• UA3603 on ORD → MCI (1 flights)
• UA3603 on SDF → ORD (26 flights)
• UA3603 on PIT → ORD (1 flights)
• UA3603 on ORD → OMA (5 flights)
• UA3603 on ORD → ECP (4 flights)
• UA3603 on ELP → ORD (58 flights)
• UA3603 on MCI → ORD (17 flights)
• UA3603 on ORD → CLT (52 flights)
• UA3603 on ORD → CMH (109 flights)
• UA3603 on STL → ORD (1 flights)
• UA3603 on GSP → ORD (3 flights)
• UA3603 on EWR → DTW (4 flights)

Related

• All United Airlines flights on GRR → EWR
• Compare airlines on GRR → EWR
• United Airlines on the return, EWR → GRR