About 1 in 10 UA 3984 flights from Tulsa arrived 15+ minutes late, diverted or cancelled over the past year (10%); 0.0% were cancelled. The typical flight landed 13 minutes early.
UA 3984: TUL → IAH
Scheduled to leave Tulsa at 7:00 a.m. local time, operated by Mesa Airlines as YV 3984. Over the past year it arrived on time 90% of the time (148 flights), in line with other UA flights on the route at that hour (93%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 23 | 87% |
| Tuesday | 22 | 91% |
| Wednesday | 22 | 100% |
| Thursday | 19 | — |
| Friday | 22 | 95% |
| Saturday | 22 | 82% |
| Sunday | 18 | — |
Why it was late
All flights TUL → IAH · Connecting off UA 3984? Check the risk
Questions
How often is UA 3984 from TUL to IAH late?
United Airlines 3984 from Tulsa, OK to Houston, TX arrived 15 or more minutes late, was diverted or was cancelled on 10% of 148 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.