About 1 in 3 UA 404 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (36%); 2.7% were cancelled. The typical flight landed 1 minutes late.
UA 404: IAH → EWR
Scheduled to leave Houston at 6:36 p.m. local time. Over the past year it arrived on time 64% of the time (365 flights), in line with other UA flights on the route at that hour (64%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 64% |
| Tuesday | 52 | 79% |
| Wednesday | 52 | 73% |
| Thursday | 52 | 60% |
| Friday | 52 | 62% |
| Saturday | 52 | 62% |
| Sunday | 52 | 52% |
Why it was late
All flights IAH → EWR · Connecting off UA 404? Check the risk
UA 404: SAT → IAH
Scheduled to leave San Antonio at 4:18 p.m. local time. Over the past year it arrived on time 78% of the time (201 flights), better than other UA flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 29 | 76% |
| Tuesday | 28 | 86% |
| Wednesday | 28 | 79% |
| Thursday | 29 | 79% |
| Friday | 29 | 79% |
| Saturday | 29 | 66% |
| Sunday | 29 | 83% |
Why it was late
All flights SAT → IAH · Connecting off UA 404? Check the risk
Questions
How often is UA 404 from IAH to EWR late?
United Airlines 404 from Houston, TX to Newark, NJ arrived 15 or more minutes late, was diverted or was cancelled on 36% of 365 scheduled flights between September 2025 and August 2026. 2.7% were cancelled.
How often is UA 404 from SAT to IAH late?
United Airlines 404 from San Antonio, TX to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 22% of 201 scheduled flights between September 2025 and August 2026. 0.0% 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.