Flight OddsDEN → SEA United Airlines
United Airlines · Denver, CO to Seattle, WA · 1,903 flights, 2025-07-01 to 2026-06-30 · aggregated across 25 flight numbers
On-time arrival
81%
Median delay
-5 min
90th percentile
+37 min
Cancellation rate
1%
How on-time is United Airlines from DEN to SEA?
Across every United Airlines flight number on DEN → SEA (1,903 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +37 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,533 | 81% |
| 16-30 min | 131 | 7% |
| 31-60 min | 119 | 6% |
| 61-120 min | 71 | 4% |
| 2+ hrs | 37 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 197 | 75% | +11 min |
| 2025-08 | 191 | 72% | +12 min |
| 2025-09 | 171 | 88% | -2 min |
| 2025-10 | 171 | 84% | +1 min |
| 2025-11 | 135 | 91% | -2 min |
| 2025-12 | 137 | 76% | +10 min |
| 2026-01 | 129 | 88% | -5 min |
| 2026-02 | 122 | 89% | -4 min |
| 2026-03 | 138 | 72% | +15 min |
| 2026-04 | 138 | 89% | -2 min |
| 2026-05 | 165 | 79% | +2 min |
| 2026-06 | 197 | 77% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 277 | 80% |
| Tue | 250 | 84% |
| Wed | 272 | 82% |
| Thu | 284 | 79% |
| Fri | 282 | 80% |
| Sat | 240 | 80% |
| Sun | 286 | 83% |
UA flight numbers on DEN → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…