How often is UA3639 on time?

Across 9 flights on IAD → CMH from 2026-02-02 to 2026-02-11, UA3639 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +34 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

• UA3639 on EWR → RIC (41 flights)
• UA3639 on PWM → EWR (64 flights)
• UA3639 on GRR → EWR (75 flights)
• UA3639 on RDU → EWR (2 flights)
• UA3639 on LGA → ORD (20 flights)
• UA3639 on IAD → DTW (1 flights)
• UA3639 on IAD → PHL (16 flights)
• UA3639 on EWR → IAD (3 flights)
• UA3639 on ORD → CLE (50 flights)
• UA3639 on IAD → CLT (2 flights)
• UA3639 on IND → EWR (20 flights)
• UA3639 on ORD → STL (11 flights)
• UA3639 on ORD → MCI (1 flights)
• UA3639 on MCI → EWR (42 flights)
• UA3639 on JAX → ORD (3 flights)
• UA3639 on EWR → RDU (4 flights)

Related

• All United Airlines flights on IAD → CMH
• Compare airlines on IAD → CMH
• United Airlines on the return, CMH → IAD