How often is UA5252 on time?

Across 14 flights on COS → DEN from 2025-08-19 to 2025-09-01, UA5252 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +135 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

• UA5252 on DEN → MAF (5 flights)
• UA5252 on TVC → DEN (1 flights)
• UA5252 on BNA → IAH (23 flights)
• UA5252 on GRB → ORD (1 flights)
• UA5252 on GRR → ORD (11 flights)
• UA5252 on ORD → ATW (13 flights)
• UA5252 on ATW → ORD (6 flights)
• UA5252 on CMH → ORD (6 flights)
• UA5252 on EGE → LAX (88 flights)
• UA5252 on PSP → LAX (6 flights)
• UA5252 on LAX → SEA (42 flights)
• UA5252 on ORD → SDF (2 flights)
• UA5252 on MCI → IAH (3 flights)
• UA5252 on ORD → SBN (30 flights)
• UA5252 on SFO → RNO (23 flights)
• UA5252 on FAT → LAX (49 flights)

Related

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