How often is UA539 on time?

Across 28 flights on IAH → LAS from 2026-03-29 to 2026-04-29, UA539 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +14 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

• UA539 on DFW → IAH (205 flights)
• UA539 on ORD → DFW (181 flights)
• UA539 on IAH → BNA (1 flights)
• UA539 on EWR → DFW (15 flights)
• UA539 on ORD → MCI (1 flights)
• UA539 on LAS → SJC (1 flights)
• UA539 on ORD → LAS (1 flights)
• UA539 on BUF → EWR (1 flights)
• UA539 on FLL → SFO (31 flights)
• UA539 on CLE → ORD (37 flights)
• UA539 on BNA → SFO (18 flights)
• UA539 on BOS → IAD (31 flights)

Related

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