Flight OddsUA4900 IAH → TYS
United Airlines · Houston, TX to Knoxville, TN · 271 flights observed, 2025-07-01 to 2026-03-28 · 771 mi
On-time arrival
79%
Median delay
-7 min
90th percentile
+62 min
Cancellation rate
2%
How often is UA4900 on time?
Across 271 flights on IAH → TYS from 2025-07-01 to 2026-03-28, UA4900 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +62 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 209 | 79% |
| 16-30 min | 13 | 5% |
| 31-60 min | 16 | 6% |
| 61-120 min | 13 | 5% |
| 2+ hrs | 14 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 53% | +45 min |
| 2025-08 | 31 | 68% | +18 min |
| 2025-09 | 30 | 93% | -7 min |
| 2025-10 | 31 | 84% | +2 min |
| 2025-11 | 30 | 80% | +4 min |
| 2025-12 | 31 | 81% | +3 min |
| 2026-01 | 28 | 79% | +7 min |
| 2026-02 | 28 | 89% | -2 min |
| 2026-03 | 26 | 85% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 38 | 76% |
| Tue | 39 | 90% |
| Wed | 38 | 84% |
| Thu | 39 | 82% |
| Fri | 37 | 78% |
| Sat | 36 | 78% |
| Sun | 38 | 63% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…