Flight OddsDL3603 SEA → BOI
Delta Air Lines · Seattle, WA to Boise, ID · 168 flights observed, 2025-07-01 to 2025-12-17 · 399 mi
On-time arrival
89%
Median delay
-11 min
90th percentile
+20 min
Cancellation rate
0%
How often is DL3603 on time?
Across 168 flights on SEA → BOI from 2025-07-01 to 2025-12-17, DL3603 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +20 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 | 149 | 89% |
| 16-30 min | 7 | 4% |
| 31-60 min | 6 | 4% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -2 min |
| 2025-08 | 30 | 87% | -2 min |
| 2025-09 | 30 | 87% | -6 min |
| 2025-10 | 31 | 94% | -8 min |
| 2025-11 | 29 | 86% | +17 min |
| 2025-12 | 17 | 94% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 100% |
| Tue | 25 | 88% |
| Wed | 25 | 96% |
| Thu | 23 | 83% |
| Fri | 24 | 79% |
| Sat | 24 | 96% |
| Sun | 23 | 78% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…