China AirlinesCI
Flights CI21 01:55 Mo Tu We Fr Su
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Direct flights from Seattle (SEA) to Taipei (TPE): 26 nonstop departures observed each week across 4 airlines. 85% of the last 13 operated flights arrived within 15 minutes of schedule. The median arrival is 32 minutes early. No cancellations were recorded across the 13 tracked flights. The nonstop covers 9,757 km, an estimated 13 hours 1 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Taipei. Updated 7 September 2026 at 14:22 UTC.
SEA
Seattle
smooth · +5
TPE
Taipei
smooth · +0
9,757 km · ~13h 01m est.
Runs reliable · 4 airlines · 26x weekly · nonstop
85% on time
of the last 13 operated SEA → TPE flights arrived within 15 minutes
Median arrival delay is −32 min. 0 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−32 minacross the last 13 operated legs
Flight time~13h 01mestimated from route distance
Weekly departures26x4 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 13
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
China AirlinesDelta Air LinesEVA AirStarlux 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 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 boardsWeather lens
Current conditions put the pressure at TPE: 37% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Seattle to Taipei route actually runs
Pro Flight Search records official board updates for nonstop SEA to TPE 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 (SEA) to Taipei (TPE) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-TPE
SEA to TPE questions
Is SEA–TPE running on time right now?
Smooth skies ahead. The departure side at SEA is the weaker end, route health score 95/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SEA–TPE?
Operators schedule morning departures around 01:15 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the TPE delay card to confirm conditions when you'd arrive.
How long is the flight from SEA to TPE?
Great-circle distance is 9,757 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 719–866 min gate-to-gate on this route.
How often does SEA–TPE fly?
4 carriers operate this route, around 29 flights a week between them. Compare carrier days and times in the airline list above.
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