How often is UA3433 on time?

Across 8 flights on BUF → IAD from 2026-05-22 to 2026-06-01, UA3433 arrived within 15 minutes of schedule 100% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +3 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

• UA3433 on CLE → IAD (6 flights)
• UA3433 on ORD → DAY (20 flights)
• UA3433 on RDU → ORD (3 flights)
• UA3433 on EWR → GSP (20 flights)
• UA3433 on ORD → RDU (30 flights)
• UA3433 on BUF → ORD (23 flights)
• UA3433 on IAD → BDL (1 flights)
• UA3433 on BNA → EWR (4 flights)
• UA3433 on PIT → IAD (3 flights)
• UA3433 on JAX → ORD (9 flights)
• UA3433 on IAD → CHS (1 flights)
• UA3433 on ROC → ORD (6 flights)
• UA3433 on CID → ORD (1 flights)
• UA3433 on IAD → DTW (1 flights)
• UA3433 on ORD → CHA (1 flights)
• UA3433 on ORD → CLE (50 flights)
• UA3433 on IAD → BTV (1 flights)
• UA3433 on DSM → ORD (33 flights)
• UA3433 on EWR → STL (2 flights)
• UA3433 on CLE → EWR (25 flights)
• UA3433 on ORD → SDF (8 flights)
• UA3433 on EWR → CMH (20 flights)
• UA3433 on ORD → CVG (33 flights)

Related

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