Flight OddsDL3677 SEA → GEG
Delta Air Lines · Seattle, WA to Spokane, WA · 145 flights observed, 2026-01-05 to 2026-06-28 · 224 mi
DL3677 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
91%
Median delay
-13 min
90th percentile
+14 min
Cancellation rate
1%
How often is DL3677 on time?
Across 145 flights on SEA → GEG from 2026-01-05 to 2026-06-28, DL3677 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +14 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 130 | 91% |
| 16-30 min | 3 | 2% |
| 31-60 min | 7 | 5% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 24 | 96% | -13 min |
| 2026-02 | 27 | 100% | -10 min |
| 2026-03 | 30 | 83% | +1 min |
| 2026-04 | 12 | 83% | -3 min |
| 2026-05 | 25 | 80% | +1 min |
| 2026-06 | 25 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 21 | 95% |
| Tue | 21 | 86% |
| Wed | 20 | 90% |
| Thu | 22 | 86% |
| Fri | 21 | 100% |
| Sat | 16 | 100% |
| Sun | 22 | 82% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…