Flight OddsIAD → BUF United Airlines
United Airlines · Washington, DC to Buffalo, NY · 1,164 flights, 2025-07-01 to 2026-06-30 · aggregated across 60 flight numbers
On-time arrival
80%
Median delay
-8 min
90th percentile
+53 min
Cancellation rate
2%
How on-time is United Airlines from IAD to BUF?
Across every United Airlines flight number on IAD → BUF (1,164 flights, 2025-07-01 to 2026-06-30), 80% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +53 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 910 | 80% |
| 16-30 min | 66 | 6% |
| 31-60 min | 56 | 5% |
| 61-120 min | 45 | 4% |
| 2+ hrs | 57 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 112 | 72% | +21 min |
| 2025-08 | 114 | 78% | +11 min |
| 2025-09 | 98 | 90% | -3 min |
| 2025-10 | 89 | 89% | -1 min |
| 2025-11 | 84 | 79% | +4 min |
| 2025-12 | 73 | 66% | +43 min |
| 2026-01 | 64 | 73% | +13 min |
| 2026-02 | 68 | 82% | +23 min |
| 2026-03 | 105 | 76% | +15 min |
| 2026-04 | 106 | 86% | +10 min |
| 2026-05 | 116 | 84% | -2 min |
| 2026-06 | 105 | 83% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 171 | 81% |
| Tue | 155 | 78% |
| Wed | 153 | 77% |
| Thu | 172 | 84% |
| Fri | 167 | 78% |
| Sat | 149 | 86% |
| Sun | 167 | 78% |
UA flight numbers on IAD → BUF
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…