Air Miles Calculator

Distance between Houston, TX (IAH) and Quincy, IL (UIN)

Flight distance from Houston to Quincy (Houston George Bush Intercontinental Airport – Quincy Regional Airport) is 725 miles / 1168 kilometers / 630 nautical miles. Estimated flight time is 1 hour 52 minutes.

Driving distance from Houston (IAH) to Quincy (UIN) is 902 miles / 1451 kilometers and travel time by car is about 16 hours 31 minutes.

Map of flight path and driving directions from Houston to Quincy.

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Quincy Regional Airport (UIN).

How far is Quincy from Houston?

There are several ways to calculate distances between Houston and Quincy. Here are two common methods:

Vincenty's formula (applied above)
  • 725.452 miles
  • 1167.502 kilometers
  • 630.401 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
  • 726.773 miles
  • 1169.628 kilometers
  • 631.549 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 Houston George Bush Intercontinental Airport
City: Houston, TX
Country: United States Flag of United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B Quincy Regional Airport
City: Quincy, IL
Country: United States Flag of United States
IATA Code: UIN
ICAO Code: KUIN
Coordinates: 39°56′33″N, 91°11′40″W

Time difference and current local times

There is no time difference between Houston and Quincy.

Time Difference

Houston, TX

 CST

Quincy, IL

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 127 kg (281 pounds).

Frequent Flyer Miles Calculator

Houston (IAH) → Quincy (UIN).

Distance:
725
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
725

Round trip?