Flight OddsDL688 JFK → SEA
Delta Air Lines · New York, NY to Seattle, WA · 359 flights observed, 2025-07-01 to 2026-06-30 · 2,422 mi
On-time arrival
67%
Median delay
+2 min
90th percentile
+62 min
Cancellation rate
3%
How often is DL688 on time?
Across 359 flights on JFK → SEA from 2025-07-01 to 2026-06-30, DL688 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +62 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 232 | 67% |
| 16-30 min | 41 | 12% |
| 31-60 min | 39 | 11% |
| 61-120 min | 24 | 7% |
| 2+ hrs | 11 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 65% | +11 min |
| 2025-08 | 31 | 87% | -8 min |
| 2025-09 | 30 | 83% | -5 min |
| 2025-10 | 31 | 58% | +10 min |
| 2025-11 | 28 | 54% | +32 min |
| 2025-12 | 24 | 21% | +50 min |
| 2026-01 | 28 | 71% | +7 min |
| 2026-02 | 25 | 76% | +4 min |
| 2026-03 | 29 | 62% | +20 min |
| 2026-04 | 30 | 60% | +9 min |
| 2026-05 | 30 | 77% | +10 min |
| 2026-06 | 30 | 80% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 63% |
| Tue | 52 | 75% |
| Wed | 50 | 66% |
| Thu | 48 | 56% |
| Fri | 48 | 69% |
| Sat | 49 | 73% |
| Sun | 49 | 65% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…