Air Miles Calculator

Distance between Houston, TX (IAH) and Ontario, CA (ONT)

Distance from George Bush Intercontinental Airport to Ontario International Airport is 1334 miles / 2146 kilometers / 1159 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 1333.600 miles
  • 2146.221 kilometers
  • 1158.867 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
  • 1331.142 miles
  • 2142.265 kilometers
  • 1156.730 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from George Bush Intercontinental Airport (IAH) to Ontario International Airport (ONT) is 3 hours 1 minutes.

Time difference and current local times

The time difference between Houston and Ontario is 2 hours. Ontario is 2 hours behind Houston.

Time Difference

Houston
Ontario

Houston, TX

 CST

Ontario, CA

 PST

Airport information


A 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 Ontario International Airport
City: Ontario, CA
Country: United States Flag of United States
IATA Code: ONT
ICAO Code: KONT
Coordinates: 34°3′21″N, 117°36′3″W

Map

Flight map from Houston to Ontario.

Frequent Flyer Miles Calculator

Houston (IAH) → Ontario (ONT).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
1334
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1334

Round trip?