Flight OddsDL2851 SEA → DEN
Delta Air Lines · Seattle, WA to Denver, CO · 193 flights observed, 2025-12-20 to 2026-06-30 · 1,024 mi
On-time arrival
78%
Median delay
-10 min
90th percentile
+46 min
Cancellation rate
2%
How often is DL2851 on time?
Across 193 flights on SEA → DEN from 2025-12-20 to 2026-06-30, DL2851 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +46 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 148 | 78% |
| 16-30 min | 15 | 8% |
| 31-60 min | 16 | 8% |
| 61-120 min | 8 | 4% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 11 | 82% | +1 min |
| 2026-01 | 31 | 87% | -10 min |
| 2026-02 | 28 | 86% | -7 min |
| 2026-03 | 30 | 67% | +7 min |
| 2026-04 | 30 | 67% | +12 min |
| 2026-05 | 31 | 87% | -3 min |
| 2026-06 | 29 | 72% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 28 | 71% |
| Tue | 28 | 82% |
| Wed | 27 | 74% |
| Thu | 26 | 81% |
| Fri | 26 | 77% |
| Sat | 28 | 86% |
| Sun | 27 | 74% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…