# Distance between Chicago, IL (ORD) and Thunder Bay (YQT)

Flight distance from Chicago to Thunder Bay (Chicago O'Hare International Airport – Thunder Bay International Airport) is 447 miles / 719 kilometers / 388 nautical miles. Estimated flight time is 1 hour 20 minutes.

Driving distance from Chicago (ORD) to Thunder Bay (YQT) is 646 miles / 1039 kilometers and travel time by car is about 11 hours 52 minutes.

## 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).

## 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 Thunder Bay International Airport
City: Thunder Bay
IATA Code: YQT
ICAO Code: CYQT
Coordinates: 48°22′18″N, 89°19′26″W

## 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.

CST

EST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 91 kg (200 pounds).

## Frequent Flyer Miles Calculator

Chicago (ORD) → Thunder Bay (YQT).

Distance:
447
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
447

Round trip?