How often is UA5251 on time?

Across 18 flights on ORD → ASE from 2025-08-01 to 2025-08-18, UA5251 arrived within 15 minutes of schedule 64% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +562 min or later. 6% 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

• UA5251 on DEN → OMA (28 flights)
• UA5251 on GRB → ORD (21 flights)
• UA5251 on ORD → ATW (32 flights)
• UA5251 on EGE → DEN (45 flights)
• UA5251 on EGE → SFO (37 flights)
• UA5251 on DEN → COS (19 flights)
• UA5251 on DEN → SLC (16 flights)
• UA5251 on LIT → ORD (36 flights)
• UA5251 on RNO → DEN (23 flights)
• UA5251 on ASE → DEN (37 flights)
• UA5251 on ORD → CAK (30 flights)
• UA5251 on ORD → BUF (1 flights)

Related

• All United Airlines flights on ORD → ASE
• Compare airlines on ORD → ASE
• United Airlines on the return, ASE → ORD