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How far is Saint John from Niagara Falls, NY?

The distance between Niagara Falls (Niagara Falls International Airport) and Saint John (Saint John Airport) is 665 miles / 1071 kilometers / 578 nautical miles.

The driving distance from Niagara Falls (IAG) to Saint John (YSJ) is 874 miles / 1406 kilometers, and travel time by car is about 17 hours 18 minutes.

Niagara Falls International Airport – Saint John Airport

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665
Miles
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1071
Kilometers
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578
Nautical miles

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Distance from Niagara Falls to Saint John

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

Vincenty's formula (applied above)
  • 665.238 miles
  • 1070.597 kilometers
  • 578.076 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
  • 663.533 miles
  • 1067.854 kilometers
  • 576.595 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 Niagara Falls to Saint John?

The estimated flight time from Niagara Falls International Airport to Saint John Airport is 1 hour and 45 minutes.

Flight carbon footprint between Niagara Falls International Airport (IAG) and Saint John Airport (YSJ)

On average, flying from Niagara Falls to Saint John generates about 121 kg of CO2 per passenger, and 121 kilograms equals 266 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Niagara Falls to Saint John

See the map of the shortest flight path between Niagara Falls International Airport (IAG) and Saint John Airport (YSJ).

Airport information

Origin Niagara Falls International Airport
City: Niagara Falls, NY
Country: United States Flag of United States
IATA Code: IAG
ICAO Code: KIAG
Coordinates: 43°6′26″N, 78°56′46″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