Flight OddsIAD → LAS United Airlines
United Airlines · Washington, DC to Las Vegas, NV · 1,009 flights, 2025-07-01 to 2026-06-30 · aggregated across 14 flight numbers
On-time arrival
87%
Median delay
-12 min
90th percentile
+27 min
Cancellation rate
0%
How on-time is United Airlines from IAD to LAS?
Across every United Airlines flight number on IAD → LAS (1,009 flights, 2025-07-01 to 2026-06-30), 87% arrived within 15 minutes of schedule. Median arrival delay -12 min; the worst 10% ran +27 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 877 | 87% |
| 16-30 min | 40 | 4% |
| 31-60 min | 42 | 4% |
| 61-120 min | 20 | 2% |
| 2+ hrs | 24 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 92 | 70% | +17 min |
| 2025-08 | 92 | 82% | +1 min |
| 2025-09 | 90 | 93% | -9 min |
| 2025-10 | 93 | 88% | +0 min |
| 2025-11 | 89 | 93% | -11 min |
| 2025-12 | 92 | 91% | -9 min |
| 2026-01 | 86 | 86% | -4 min |
| 2026-02 | 74 | 92% | -11 min |
| 2026-03 | 79 | 89% | -11 min |
| 2026-04 | 81 | 96% | -12 min |
| 2026-05 | 75 | 89% | -11 min |
| 2026-06 | 60 | 80% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 147 | 84% |
| Tue | 133 | 89% |
| Wed | 139 | 89% |
| Thu | 147 | 88% |
| Fri | 149 | 89% |
| Sat | 142 | 89% |
| Sun | 146 | 83% |
UA flight numbers on IAD → LAS
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…