Map of flight path and driving directions from Chicago to Thunder Bay.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Thunder Bay International Airport (YQT).
How far is Thunder Bay from Chicago?
There are several ways to calculate distances between Chicago and Thunder Bay. Here are two common methods:Vincenty's formula (applied above)
- 446.882 miles
- 719.187 kilometers
- 388.330 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
- 447.087 miles
- 719.517 kilometers
- 388.508 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).
Time difference and current local times
The time difference between Chicago and Thunder Bay is 1 hour. Thunder Bay is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 91 kg (200 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Thunder Bay (YQT).