Flight OddsDL1551 LAX → SEA
Delta Air Lines · Los Angeles, CA to Seattle, WA · 305 flights observed, 2025-07-01 to 2026-06-30 · 954 mi
DL1551 covers more than one route in the data window — the stats below are for LAX → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-9 min
90th percentile
+38 min
Cancellation rate
1%
How often is DL1551 on time?
Across 305 flights on LAX → SEA from 2025-07-01 to 2026-06-30, DL1551 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +38 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 | 247 | 82% |
| 16-30 min | 17 | 6% |
| 31-60 min | 21 | 7% |
| 61-120 min | 8 | 3% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 79% | +8 min |
| 2025-08 | 31 | 87% | +3 min |
| 2025-09 | 30 | 100% | -16 min |
| 2025-10 | 30 | 70% | +9 min |
| 2025-11 | 28 | 82% | +20 min |
| 2025-12 | 19 | 84% | -1 min |
| 2026-01 | 22 | 100% | -23 min |
| 2026-02 | 18 | 83% | -8 min |
| 2026-03 | 22 | 95% | -12 min |
| 2026-04 | 22 | 91% | -6 min |
| 2026-05 | 24 | 58% | +13 min |
| 2026-06 | 25 | 60% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 81% |
| Tue | 35 | 71% |
| Wed | 49 | 88% |
| Thu | 49 | 78% |
| Fri | 49 | 90% |
| Sat | 24 | 92% |
| Sun | 46 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…