# Distance between Chicago, IL (ORD) and Saint John (YSJ)

Flight distance from Chicago to Saint John (Chicago O'Hare International Airport – Saint John Airport) is 1124 miles / 1808 kilometers / 976 nautical miles. Estimated flight time is 2 hours 37 minutes.

Driving distance from Chicago (ORD) to Saint John (YSJ) is 1419 miles / 2283 kilometers and travel time by car is about 25 hours 36 minutes.

## Map of flight path and driving directions from Chicago to Saint John.

Shortest flight path between Chicago O'Hare International Airport (ORD) and Saint John Airport (YSJ).

## How far is Saint John from Chicago?

There are several ways to calculate distances between Chicago and Saint John. Here are two common methods:

Vincenty's formula (applied above)
• 1123.669 miles
• 1808.370 kilometers
• 976.442 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 1120.789 miles
• 1803.736 kilometers
• 973.939 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).

## Airport information

A Chicago O'Hare International Airport
City: Chicago, IL
Country: United States
IATA Code: ORD
ICAO Code: KORD
Coordinates: 41°58′42″N, 87°54′17″W

B Saint John Airport
City: Saint John
IATA Code: YSJ
ICAO Code: CYSJ
Coordinates: 45°18′57″N, 65°53′25″W

## Time difference and current local times

The time difference between Chicago and Saint John is 2 hours. Saint John is 2 hours ahead of Chicago.

CST

AST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 158 kg (348 pounds).

## Frequent Flyer Miles Calculator

Chicago (ORD) → Saint John (YSJ).

Distance:
1124
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1124

Round trip?