Flight OddsIAD → TYS United Airlines
United Airlines · Washington, DC to Knoxville, TN · 1,265 flights, 2025-07-01 to 2026-06-30 · aggregated across 10 flight numbers
On-time arrival
79%
Median delay
-9 min
90th percentile
+85 min
Cancellation rate
1%
How on-time is United Airlines from IAD to TYS?
Across every United Airlines flight number on IAD → TYS (1,265 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -9 min; the worst 10% ran +85 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 979 | 79% |
| 16-30 min | 62 | 5% |
| 31-60 min | 49 | 4% |
| 61-120 min | 49 | 4% |
| 2+ hrs | 105 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 119 | 69% | +29 min |
| 2025-08 | 118 | 73% | +27 min |
| 2025-09 | 110 | 91% | -3 min |
| 2025-10 | 100 | 82% | +4 min |
| 2025-11 | 117 | 82% | +6 min |
| 2025-12 | 106 | 60% | +60 min |
| 2026-01 | 86 | 83% | +7 min |
| 2026-02 | 83 | 88% | -5 min |
| 2026-03 | 92 | 84% | +4 min |
| 2026-04 | 90 | 93% | -14 min |
| 2026-05 | 104 | 73% | +26 min |
| 2026-06 | 119 | 74% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 180 | 84% |
| Tue | 179 | 83% |
| Wed | 176 | 81% |
| Thu | 173 | 78% |
| Fri | 180 | 73% |
| Sat | 177 | 78% |
| Sun | 179 | 73% |
UA flight numbers on IAD → TYS
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…