HU446 SeattleSEA HaikouHAK
HU446 by Hainan Airlines flies from Seattle (SEA) to Haikou (HAK).
Same number through SEA → CKG → HAK
scheduled from SEA
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SEA and HAK are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How HU446 actually runs
Pro Flight Search has tracked every published board update for HU446 across the SEA and HAK boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at SEA and HAK.
The verdict above is that record speaking, so it reflects how HU446 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SEA and HAK published them.
Planning around HU446? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — HU446 Seattle to Haikou on-time performance, measured from the SEA and HAK airport boards.
https://proflightsearch.com/flight/HU446
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