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How far is Niagara Falls, NY, from Saint John?

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

The driving distance from Saint John (YSJ) to Niagara Falls (IAG) is 872 miles / 1403 kilometers, and travel time by car is about 17 hours 18 minutes.

Saint John Airport – Niagara Falls International 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 Saint John to Niagara Falls

There are several ways to calculate the distance from Saint John to Niagara Falls. 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 Saint John to Niagara Falls?

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

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

On average, flying from Saint John to Niagara Falls 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 Saint John to Niagara Falls

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

Airport information

Origin 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
Destination 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