How far is Helsinki from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Helsinki (Helsinki Airport) is 4783 miles / 7697 kilometers / 4156 nautical miles.

Distance from Seattle to Helsinki

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

Vincenty's formula (applied above)

• 4782.804 miles
• 7697.177 kilometers
• 4156.143 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

• 4767.754 miles
• 7672.956 kilometers
• 4143.065 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 Helsinki?

The estimated flight time from Seattle–Tacoma International Airport to Helsinki Airport is 9 hours and 33 minutes.

What is the time difference between Seattle and Helsinki?

The time difference between Seattle and Helsinki is 9 hours. Helsinki is 9 hours ahead of Seattle.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Helsinki Airport (HEL)

On average, flying from Seattle to Helsinki generates about 556 kg of CO2 per passenger, and 556 kilograms equals 1 225 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to Helsinki

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Helsinki Airport (HEL).

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	Helsinki Airport
City:	Helsinki
Country:	Finland
IATA Code:	HEL
ICAO Code:	EFHK
Coordinates:	60°19′1″N, 24°57′47″E