Distance From Wudalianchi Longmen Airport to Seattle–Tacoma International Airport

The distance from Wudalianchi Longmen Airport () to Seattle–Tacoma International Airport (SEA) is 4600 miles or 7403 kilometers or 3995 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Heihe ( China ) to Seattle ( United States )?

A one-way nonstop (direct) flight between Heihe and Seattle takes around 10 hours 34 minutes.

Estimated flight time from Wudalianchi Longmen Airport, Heihe, China to Seattle–Tacoma International Airport, Seattle, United States is 10 hours 34 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - SEA

Kilometers		7403 km
Statute Miles		4600 miles
Nautical Miles		3995 nm
Avg. Time of Flight		10 hours 34 minutes

Wudalianchi Longmen Airport to Seattle–Tacoma International Airport Flight Route Map - to SEA Flight Path

Location of Wudalianchi Longmen Airport & Seattle–Tacoma International Airport is given below.
Click the map to view Heihe to Seattle nonstop flight path and travel direction.

Click to see flight route on Google Map between Heihe, China and Seattle, United States. .

Nonstop flight route between Heihe, China and Seattle, United States.

Time Difference Between the Airports • - SEA

Time difference between Heihe (China) and Seattle (United States) is 15 Hours.
Seattle time is 15 Hours behind Heihe.

Location	Local Time
Heihe (China)	2025-12-17, 01:35:10 CST
Seattle (United States)	2025-12-16, 10:35:10 MST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Wudalianchi Longmen Airport ( / ) Heihe, China

Destination

Seattle–Tacoma International Airport (SEA / KSEA) Seattle, United States