How often is UA3634 on time?

Across 28 flights on IAD → RIC from 2025-07-01 to 2025-08-15, UA3634 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -21 min, and the worst 10% of flights arrived +10 min or later. 4% 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

• UA3634 on ORD → BNA (34 flights)
• UA3634 on ORD → MSN (21 flights)
• UA3634 on CVG → ORD (3 flights)
• UA3634 on MLI → ORD (10 flights)
• UA3634 on BUF → IAD (18 flights)
• UA3634 on ORD → ROC (1 flights)
• UA3634 on ORD → OKC (28 flights)
• UA3634 on CHS → IAD (14 flights)
• UA3634 on EWR → BOS (3 flights)
• UA3634 on IAD → BTV (46 flights)
• UA3634 on IAD → ROC (2 flights)
• UA3634 on ROC → EWR (4 flights)
• UA3634 on IAD → ORF (31 flights)
• UA3634 on CLE → EWR (2 flights)
• UA3634 on IAD → BDL (9 flights)
• UA3634 on EWR → ATL (8 flights)

Related

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