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How far is Saint John from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and Saint John (Saint John Airport) is 2641 miles / 4250 kilometers / 2295 nautical miles.

The driving distance from Seattle (SEA) to Saint John (YSJ) is 3260 miles / 5247 kilometers, and travel time by car is about 62 hours 17 minutes.

Seattle–Tacoma International Airport – Saint John Airport

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2641
Miles
Distance arrow
4250
Kilometers
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2295
Nautical miles

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Distance from Seattle to Saint John

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

Vincenty's formula (applied above)
  • 2640.867 miles
  • 4250.064 kilometers
  • 2294.851 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
  • 2633.320 miles
  • 4237.917 kilometers
  • 2288.292 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 Saint John?

The estimated flight time from Seattle–Tacoma International Airport to Saint John Airport is 5 hours and 30 minutes.

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Saint John Airport (YSJ)

On average, flying from Seattle to Saint John generates about 292 kg of CO2 per passenger, and 292 kilograms equals 643 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Seattle to Saint John

See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Saint John Airport (YSJ).

Airport information

Origin Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W
Destination Saint John Airport
City: Saint John
Country: Canada Flag of Canada
IATA Code: YSJ
ICAO Code: CYSJ
Coordinates: 45°18′57″N, 65°53′25″W