Flight OddsUA4037 IAH → TYS
United Airlines · Houston, TX to Knoxville, TN · 34 flights observed, 2026-05-21 to 2026-06-24 · 771 mi
UA4037 covers more than one route in the data window — the stats below are for IAH → TYS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
88%
Median delay
-13 min
90th percentile
+14 min
Cancellation rate
0%
How often is UA4037 on time?
Across 34 flights on IAH → TYS from 2026-05-21 to 2026-06-24, UA4037 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +14 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 30 | 88% |
| 16-30 min | 2 | 6% |
| 31-60 min | 2 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 11 | 82% | -7 min |
| 2026-06 | 23 | 91% | -9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 5 | 80% |
| Fri | 5 | 100% |
| Sat | 4 | 75% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…