United Airlines IAH to LAX on-time performance
United Airlines nonstop flights from Houston to Los Angeles · Aug 2025 – Jul 2026
On-time arrivals
85%
arrived < 15 min late
Cancelled
0.3%
9 flights
Avg arrival delay
9 min
56 min when late
Rank on route
#3 of 6
route average 84% on time
Key facts
- United Airlines flights on IAH to LAX arrived on time 85% of the time in Aug 2025 – Jul 2026.
- 0.3% were cancelled, and 4% arrived an hour or more late.
- That ranks #3 of 6 airlines on this route, which averaged 84% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)41%
- Late-arriving aircraft34%
- Air traffic control & airport congestion18%
- Extreme weather7%
- Security0%
Other airlines on IAH to LAX
- Delta Air Lines88% on time · 10 min avg delay
- SkyWest Airlines80% on time · 17 min avg delay
- Spirit Airlines82% on time · 14 min avg delay
- Frontier Airlines74% on time · 17 min avg delay
- American Airlines100% on time · 0 min avg delay
Full IAH to LAX comparison →
United Airlines on-time record across all routes →
3,439 United Airlines flights tracked on this route; 9 cancelled, 4 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.