BFI → SEASeattle to Seattle

live

Direct flights from Seattle (BFI) to Seattle (SEA): 3 nonstop departures observed each week across 2 airlines. 1 of the 1 tracked flights was cancelled. The nonstop covers 9 km, an estimated 31 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Seattle. Updated 31 October 2026 at 22:22 UTC.

Today, BFI → SEA

Sat 31 Oct · local times
  1. · UA4196United On schedule SEA 13:26scheduled
  2. · UA4207United Cancelled ·
  3. · UA4208United On schedule SEA 15:00scheduled

Checked SEA board 15:22

BFI Seattle tracking
SEA Seattle smooth · +0
9 km · ~0h 31m est.
dep bank 13:50–14:303x weekly
Running clean · 2 airlines · 3x weekly · nonstop
100 / 100

route health from live BFI and SEA delay boards

1 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Flight time~0h 31mestimated from route distance
Weekly departures3x2 direct airlines on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta Air LinesUnited Airlines

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 days
Delta Air LinesDL

Flights DL8845 13:50 Fr

United AirlinesUA

Flights UA4207 14:30 Tu We

History

operated legs · board outcomes
10-31UA4207cancelledCNX

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
BFISeattle tracking Full BFI delay board →
SEASeattle +0 min smooth 🌤 mostly cloudy · N 7 kt Full SEA delay board →

How the Seattle to Seattle route actually runs

Pro Flight Search records official board updates for nonstop BFI to SEA flights through the day: 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.

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 Seattle (SEA) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/BFI-SEA
How we measure this →

BFI to SEA questions

Is BFI–SEA 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 SEA?

Great-circle distance is 9 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 31–31 min gate-to-gate on this route.

How often does BFI–SEA fly?

2 carriers operate this route, around 3 flights a week between them. Compare carrier days and times in the airline list above.

What does the route health score measure?

A blend of departure-side delay at BFI and arrival-side delay at SEA, 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.