Flight OddsIAD → SDF United Airlines
United Airlines · Washington, DC to Louisville, KY · 916 flights, 2025-07-01 to 2026-06-30 · aggregated across 16 flight numbers
On-time arrival
83%
Median delay
-9 min
90th percentile
+42 min
Cancellation rate
1%
How on-time is United Airlines from IAD to SDF?
Across every United Airlines flight number on IAD → SDF (916 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -9 min; the worst 10% ran +42 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 756 | 83% |
| 16-30 min | 36 | 4% |
| 31-60 min | 40 | 4% |
| 61-120 min | 34 | 4% |
| 2+ hrs | 42 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 119 | 74% | +22 min |
| 2025-08 | 107 | 92% | -8 min |
| 2025-09 | 84 | 89% | +2 min |
| 2025-10 | 62 | 84% | +10 min |
| 2025-11 | 59 | 83% | +5 min |
| 2025-12 | 61 | 74% | +15 min |
| 2026-01 | 58 | 71% | +16 min |
| 2026-02 | 53 | 91% | +1 min |
| 2026-03 | 62 | 84% | +6 min |
| 2026-04 | 61 | 93% | -12 min |
| 2026-05 | 92 | 83% | +14 min |
| 2026-06 | 90 | 83% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 132 | 74% |
| Tue | 131 | 90% |
| Wed | 132 | 83% |
| Thu | 131 | 79% |
| Fri | 132 | 83% |
| Sat | 120 | 91% |
| Sun | 130 | 84% |
UA flight numbers on IAD → SDF
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…