Flight OddsUA3980 IAD → SDF
United Airlines · Washington, DC to Louisville, KY · 243 flights observed, 2025-10-26 to 2026-06-30 · 451 mi
UA3980 covers more than one route in the data window — the stats below are for IAD → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-4 min
90th percentile
+33 min
Cancellation rate
0%
How often is UA3980 on time?
Across 243 flights on IAD → SDF from 2025-10-26 to 2026-06-30, UA3980 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +33 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 | 198 | 82% |
| 16-30 min | 15 | 6% |
| 31-60 min | 15 | 6% |
| 61-120 min | 6 | 2% |
| 2+ hrs | 7 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | 0 min |
| 2025-11 | 30 | 87% | +2 min |
| 2025-12 | 31 | 77% | +13 min |
| 2026-01 | 29 | 62% | +26 min |
| 2026-02 | 25 | 96% | -7 min |
| 2026-03 | 31 | 84% | +5 min |
| 2026-04 | 29 | 90% | -6 min |
| 2026-05 | 30 | 83% | +2 min |
| 2026-06 | 30 | 77% | +8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 36 | 72% |
| Tue | 35 | 94% |
| Wed | 35 | 86% |
| Thu | 34 | 71% |
| Fri | 35 | 83% |
| Sat | 32 | 84% |
| Sun | 34 | 85% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…