Flight OddsDL3688 BOI → SEA
Delta Air Lines · Boise, ID to Seattle, WA · 225 flights observed, 2025-07-06 to 2026-06-28 · 399 mi
DL3688 covers more than one route in the data window — the stats below are for BOI → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-12 min
90th percentile
+28 min
Cancellation rate
0%
How often is DL3688 on time?
Across 225 flights on BOI → SEA from 2025-07-06 to 2026-06-28, DL3688 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +28 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 | 182 | 81% |
| 16-30 min | 22 | 10% |
| 31-60 min | 15 | 7% |
| 61-120 min | 4 | 2% |
| 2+ hrs | 1 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 91% | -8 min |
| 2025-08 | 16 | 75% | -4 min |
| 2025-09 | 12 | 75% | +0 min |
| 2025-10 | 16 | 88% | -14 min |
| 2025-11 | 10 | 100% | -14 min |
| 2025-12 | 18 | 100% | -16 min |
| 2026-01 | 10 | 90% | -14 min |
| 2026-02 | 14 | 86% | -12 min |
| 2026-03 | 24 | 83% | -6 min |
| 2026-04 | 26 | 69% | +4 min |
| 2026-05 | 30 | 73% | +8 min |
| 2026-06 | 25 | 68% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 44 | 86% |
| Tue | 23 | 78% |
| Wed | 21 | 67% |
| Thu | 41 | 85% |
| Fri | 42 | 83% |
| Sat | 9 | 78% |
| Sun | 44 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…