How often is UA1639 on time?

Across 68 flights on SFO → RDM from 2025-08-19 to 2025-10-25, UA1639 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +15 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

• UA1639 on STL → ORD (41 flights)
• UA1639 on DEN → STL (41 flights)
• UA1639 on SBP → SFO (53 flights)
• UA1639 on SFO → AUS (21 flights)
• UA1639 on MIA → ORD (53 flights)
• UA1639 on RSW → ORD (17 flights)
• UA1639 on ORD → IAD (6 flights)
• UA1639 on SFO → MSY (35 flights)
• UA1639 on IAH → BNA (1 flights)
• UA1639 on IAH → EWR (49 flights)
• UA1639 on OMA → IAH (49 flights)
• UA1639 on EWR → BOS (30 flights)

Related

• All United Airlines flights on SFO → RDM
• Compare airlines on SFO → RDM
• United Airlines on the return, RDM → SFO