How far is Tonghua from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Tonghua (Tonghua Sanyuanpu Airport) is 4993 miles / 8035 kilometers / 4339 nautical miles.

Distance from Seattle to Tonghua

There are several ways to calculate the distance from Seattle to Tonghua. Here are two standard methods:

Vincenty's formula (applied above)

• 4992.720 miles
• 8035.005 kilometers
• 4338.555 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula

• 4979.175 miles
• 8013.205 kilometers
• 4326.785 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Seattle to Tonghua?

The estimated flight time from Seattle–Tacoma International Airport to Tonghua Sanyuanpu Airport is 9 hours and 57 minutes.

What is the time difference between Seattle and Tonghua?

The time difference between Seattle and Tonghua is 16 hours. Tonghua is 16 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Tonghua Sanyuanpu Airport (TNH)

On average, flying from Seattle to Tonghua generates about 583 kg of CO2 per passenger, and 583 kilograms equals 1 285 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Tonghua

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Tonghua Sanyuanpu Airport (TNH).

Airport information

Origin	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W

Destination	Tonghua Sanyuanpu Airport
City:	Tonghua
Country:	China
IATA Code:	TNH
ICAO Code:	ZYTN
Coordinates:	42°15′14″N, 125°42′11″E