Flight OddsDL3959 SEA → GEG
Delta Air Lines · Seattle, WA to Spokane, WA · 31 flights observed, 2025-11-09 to 2025-12-19 · 224 mi
DL3959 covers more than one route in the data window — the stats below are for SEA → GEG, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
77%
Median delay
0 min
90th percentile
+52 min
Cancellation rate
0%
How often is DL3959 on time?
Across 31 flights on SEA → GEG from 2025-11-09 to 2025-12-19, DL3959 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +52 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 24 | 77% |
| 16-30 min | 2 | 6% |
| 31-60 min | 2 | 6% |
| 61-120 min | 3 | 10% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 14 | 86% | -2 min |
| 2025-12 | 17 | 71% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 5 | 100% |
| Wed | 5 | 80% |
| Thu | 5 | 40% |
| Fri | 5 | 80% |
| Sat | 1 | 0% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…