Distance From Niigata University Medical & Dental Hospital Heliport to Seattle–Tacoma International Airport

The distance from Niigata University Medical & Dental Hospital Heliport () to Seattle–Tacoma International Airport (SEA) is 4708 miles or 7576 kilometers or 4088 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.

---

How long does it take to travel from Niigata ( Japan ) to Seattle ( United States )?

A one-way nonstop (direct) flight between Niigata and Seattle takes around 10 hours 49 minutes.

Estimated flight time from Niigata University Medical & Dental Hospital Heliport, Niigata, Japan to Seattle–Tacoma International Airport, Seattle, United States is 10 hours 49 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		7576 km
Statute Miles		4708 miles
Nautical Miles		4088 nm
Avg. Time of Flight		10 hours 49 minutes

Niigata University Medical & Dental Hospital Heliport to Seattle–Tacoma International Airport Flight Route Map - to SEA Flight Path

Location of Niigata University Medical & Dental Hospital Heliport & Seattle–Tacoma International Airport is given below.
Click the map to view Niigata to Seattle nonstop flight path and travel direction.

Click to see flight route on Google Map between Niigata, Japan and Seattle, United States. .

Nonstop flight route between Niigata, Japan and Seattle, United States.

Time Difference Between the Airports • - SEA

Time difference between Niigata (Japan) and Seattle (United States) is 16 Hours.
Seattle time is 16 Hours behind Niigata.

Location	Local Time
Niigata (Japan)	2025-12-17, 00:28:35 JST
Seattle (United States)	2025-12-16, 08:28:35 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

Niigata University Medical & Dental Hospital Heliport ( / ) Niigata, Japan

Destination

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