Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
UA 4003 · Memphis (MEM) → Houston (IAH)
Sold by United, flown by Mesa. Still flying: 32 of the last 56 days (Mon, Tue, Thu, Fri).
Arrives on time92%within 15 minutes, of 158 flights
Cancelled0.6%of scheduled flights
An hour or more late4%of flights that operated
When late, on average79 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves MEM
- 09:00
- Arrives IAH
- 10:54
- Flight time
- 1h 53m
- Days flown, last 8 weeks
- 32 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at MEM
All flights leaving Memphis (MEM) at 9–10 am, wherever they’re going: 86% left within 15 minutes and 1.2% were cancelled (1,385 flights in the year). Other United flights on this route →
Upcoming forecasts
This flight isn’t in our published forecasts for the next few days.