How often is UA1181 on time?

Across 270 flights on LAS → IAH from 2025-07-01 to 2026-06-30, UA1181 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +7 min or later. 1% 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

• UA1181 on IAH → PHL (6 flights)
• UA1181 on DEN → FAI (1 flights)
• UA1181 on IAH → IND (20 flights)
• UA1181 on IAH → SFO (37 flights)
• UA1181 on IAH → DCA (55 flights)
• UA1181 on IAH → FLL (31 flights)
• UA1181 on DEN → ORD (37 flights)
• UA1181 on IAH → AUS (14 flights)

Related

• All United Airlines flights on LAS → IAH
• Compare airlines on LAS → IAH
• United Airlines on the return, IAH → LAS