How far is Haiphong from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Haiphong (Cat Bi International Airport) is 6836 miles / 11002 kilometers / 5941 nautical miles.

Distance from Seattle to Haiphong

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

Vincenty's formula (applied above)

• 6836.253 miles
• 11001.882 kilometers
• 5940.541 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

• 6824.780 miles
• 10983.419 kilometers
• 5930.572 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 Haiphong?

The estimated flight time from Seattle–Tacoma International Airport to Cat Bi International Airport is 13 hours and 26 minutes.

What is the time difference between Seattle and Haiphong?

The time difference between Seattle and Haiphong is 15 hours. Haiphong is 15 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Cat Bi International Airport (HPH)

On average, flying from Seattle to Haiphong generates about 832 kg of CO2 per passenger, and 832 kilograms equals 1 834 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Haiphong

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Cat Bi International Airport (HPH).

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	Cat Bi International Airport
City:	Haiphong
Country:	Vietnam
IATA Code:	HPH
ICAO Code:	VVCI
Coordinates:	20°49′9″N, 106°43′29″E