Flight OddsDL317 DEN → SEA
Delta Air Lines · Denver, CO to Seattle, WA · 18 flights observed, 2025-12-02 to 2025-12-19 · 1,024 mi
DL317 covers more than one route in the data window — the stats below are for DEN → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
41%
Median delay
+21 min
90th percentile
+50 min
Cancellation rate
6%
How often is DL317 on time?
Across 18 flights on DEN → SEA from 2025-12-02 to 2025-12-19, DL317 arrived within 15 minutes of schedule 41% of the time. The median arrival delay was +21 min, and the worst 10% of flights arrived +50 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 7 | 41% |
| 16-30 min | 4 | 24% |
| 31-60 min | 5 | 29% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 17 | 41% | +68 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 1 | 100% |
| Tue | 3 | 0% |
| Wed | 3 | 33% |
| Thu | 3 | 67% |
| Fri | 3 | 0% |
| Sat | 2 | 100% |
| Sun | 2 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…