How often is UA1183 on time?

Across 96 flights on IAH → LAS from 2025-12-18 to 2026-03-27, UA1183 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +21 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

• UA1183 on BOS → IAH (102 flights)
• UA1183 on IAH → DFW (28 flights)
• UA1183 on EWR → BOS (53 flights)
• UA1183 on IAD → BOS (21 flights)
• UA1183 on SNA → DEN (16 flights)
• UA1183 on DEN → GTF (105 flights)
• UA1183 on LGA → DEN (37 flights)
• UA1183 on EWR → CLT (49 flights)

Related

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