How often is UA2101 on time?

Across 117 flights on COS → DEN from 2025-07-01 to 2025-10-25, UA2101 arrived within 15 minutes of schedule 39% of the time. The median arrival delay was +23 min, and the worst 10% of flights arrived +148 min or later. 3% 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

• UA2101 on SEA → ORD (55 flights)
• UA2101 on IAD → SEA (51 flights)
• UA2101 on ORD → MSN (16 flights)
• UA2101 on ORD → PHX (24 flights)
• UA2101 on RSW → IAD (15 flights)
• UA2101 on SLC → SFO (37 flights)
• UA2101 on ORD → SRQ (54 flights)
• UA2101 on MCI → DEN (1 flights)
• UA2101 on IAH → SAT (16 flights)

Related

• All United Airlines flights on COS → DEN
• Compare airlines on COS → DEN
• United Airlines on the return, DEN → COS