Delta Air LinesDL
Flights DL452 22:45 We
live
Direct flights from Seattle (BFI) to New York (JFK): 1 nonstop departure observed each week across 1 airline. The median arrival is 32 minutes early. No cancellations were recorded across the 1 tracked flight. The nonstop covers 3,885 km, an estimated 5 hours 29 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and New York. Updated 13 August 2026 at 14:03 UTC.
BFI
Seattle
tracking
JFK
New York
smooth · +0
3,885 km · ~5h 29m est.
Running clean · 1 airline · 1x weekly · nonstop
100 / 100
route health from live BFI and JFK delay boards
Median arrival delay is −32 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival−32 minacross the last 1 operated legs
Flight time~5h 29mestimated from route distance
Weekly departures1x1 direct airline on the leg
Current nonstop fares
BFI → JFK · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air Lines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Seattle to New York route actually runs
Pro Flight Search tracks every published board update for nonstop BFI to JFK flights: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises. Fares link straight to the operating airline with no markups.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Seattle (BFI) to New York (JFK) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BFI-JFK
BFI to JFK questions
Is BFI–JFK running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from BFI to JFK?
Great-circle distance is 3,885 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 304–363 min gate-to-gate on this route.
How often does BFI–JFK fly?
Delta Air Lines runs the route with about 1 flight a week (wed). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at BFI and arrival-side delay at JFK, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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