Cathay PacificCX86% on time
Flights CX811 01:45 daily
live
Direct flights from Boston (BOS) to Hong Kong (HKG): 7 nonstop departures observed each week across 1 airline. 86% of the last 7 operated flights arrived within 15 minutes of schedule. The median arrival is 29 minutes early. No cancellations were recorded across the 7 tracked flights. The nonstop covers 12,806 km, an estimated 16 hours 55 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Hong Kong. Updated 11 September 2026 at 18:21 UTC.
BOS
Boston
smooth · +9
HKG
Hong Kong
smooth · +0
12,806 km · ~16h 55m est.
Runs reliable · 1 airline · 7x weekly · nonstop
86% on time
of the last 7 operated BOS → HKG flights arrived within 15 minutes
Median arrival delay is −29 min. 0 of 7 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−29 minacross the last 7 operated legs
Flight time~16h 55mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Cathay Pacific
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 BOS and HKG: 45% 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 Boston to Hong Kong route actually runs
Pro Flight Search records official board updates for nonstop BOS to HKG 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 — Boston (BOS) to Hong Kong (HKG) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-HKG
BOS to HKG questions
Is BOS–HKG running on time right now?
Smooth skies ahead. The departure side at BOS is the weaker end, route health score 93/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from BOS to HKG?
Great-circle distance is 12,806 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 934–1128 min gate-to-gate on this route.
How often does BOS–HKG fly?
Cathay Pacific runs the route with about 7 flights a week (daily). 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 BOS and arrival-side delay at HKG, 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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