SEA → JFK: cancellations & delays
Over Jan 2023 - Apr 2026, 1.5% of Seattle–Tacoma International Airport (SEA) to John F. Kennedy International Airport (JFK) flights were cancelled and 25.9% arrived at least 15 minutes late, across 9,762 flights, flown by AS, DL, B6. Cancellations peak in January.
Check today's live SEA departures →Airport pages: Seattle–Tacoma International Airport (SEA) · John F. Kennedy International Airport (JFK)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.