How far is St. Theresa Point from Cheyenne, WY?

The distance between Cheyenne (Cheyenne Regional Airport) and St. Theresa Point (St. Theresa Point Airport) is 991 miles / 1594 kilometers / 861 nautical miles.

Distance from Cheyenne to St. Theresa Point

There are several ways to calculate the distance from Cheyenne to St. Theresa Point. Here are two standard methods:

Vincenty's formula (applied above)

• 990.756 miles
• 1594.467 kilometers
• 860.943 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

• 990.232 miles
• 1593.624 kilometers
• 860.488 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 Cheyenne to St. Theresa Point?

The estimated flight time from Cheyenne Regional Airport to St. Theresa Point Airport is 2 hours and 22 minutes.

What is the time difference between Cheyenne and St. Theresa Point?

The time difference between Cheyenne and St. Theresa Point is 1 hour. St. Theresa Point is 1 hour ahead of Cheyenne.

Flight carbon footprint between Cheyenne Regional Airport (CYS) and St. Theresa Point Airport (YST)

On average, flying from Cheyenne to St. Theresa Point generates about 150 kg of CO2 per passenger, and 150 kilograms equals 331 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Cheyenne to St. Theresa Point

See the map of the shortest flight path between Cheyenne Regional Airport (CYS) and St. Theresa Point Airport (YST).

Airport information

Origin	Cheyenne Regional Airport
City:	Cheyenne, WY
Country:	United States
IATA Code:	CYS
ICAO Code:	KCYS
Coordinates:	41°9′20″N, 104°48′43″W

Destination	St. Theresa Point Airport
City:	St. Theresa Point
Country:	Canada
IATA Code:	YST
ICAO Code:	CYST
Coordinates:	53°50′44″N, 94°51′6″W