About 1 in 6 UA 334 flights from Austin arrived 15+ minutes late, diverted or cancelled over the past year (16%); 0.9% were cancelled. The typical flight landed 4 minutes early.
UA 334: AUS → IAH
Scheduled to leave Austin at 2:18 p.m. local time. Over the past year it arrived on time 84% of the time (213 flights), in line with other UA flights on the route at that hour (83%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 34 | 74% |
| Tuesday | 30 | 87% |
| Wednesday | 33 | 88% |
| Thursday | 33 | 82% |
| Friday | 34 | 85% |
| Saturday | 18 | — |
| Sunday | 31 | 87% |
Why it was late
All flights AUS → IAH · Connecting off UA 334? Check the risk
UA 334: IAH → LGA
Scheduled to leave Houston at 4:15 p.m. local time. Over the past year it arrived on time 57% of the time (195 flights), worse than other UA flights on the route at that hour (61%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 29 | 48% |
| Tuesday | 28 | 54% |
| Wednesday | 28 | 68% |
| Thursday | 29 | 59% |
| Friday | 29 | 55% |
| Saturday | 23 | 78% |
| Sunday | 29 | 41% |
Why it was late
All flights IAH → LGA · Connecting off UA 334? Check the risk
Questions
How often is UA 334 from AUS to IAH late?
United Airlines 334 from Austin, TX to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 16% of 213 scheduled flights between September 2025 and August 2026. 0.9% were cancelled.
How often is UA 334 from IAH to LGA late?
United Airlines 334 from Houston, TX to New York, NY arrived 15 or more minutes late, was diverted or was cancelled on 43% of 195 scheduled flights between September 2025 and August 2026. 2.1% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.