Flight OddsDL3559 SJC → SEA
Delta Air Lines · San Jose, CA to Seattle, WA · 170 flights observed, 2025-07-01 to 2025-12-19 · 696 mi
DL3559 covers more than one route in the data window — the stats below are for SJC → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
93%
Median delay
-15 min
90th percentile
+8 min
Cancellation rate
0%
How often is DL3559 on time?
Across 170 flights on SJC → SEA from 2025-07-01 to 2025-12-19, DL3559 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +8 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 | 158 | 93% |
| 16-30 min | 7 | 4% |
| 31-60 min | 2 | 1% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | -13 min |
| 2025-08 | 31 | 97% | -12 min |
| 2025-09 | 30 | 90% | -9 min |
| 2025-10 | 30 | 93% | -14 min |
| 2025-11 | 29 | 93% | +1 min |
| 2025-12 | 19 | 89% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 92% |
| Tue | 25 | 100% |
| Wed | 25 | 100% |
| Thu | 25 | 88% |
| Fri | 24 | 88% |
| Sat | 23 | 91% |
| Sun | 24 | 92% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…