Distance between cities › USA › Illinois › Markham, IL › Distance from Markham to George Bush Intercontinental Airport Book Hotels

Distance from Markham, IL to IAH Airport

Distance

1,048 mi

Time

18 hours 51 mins

Gas Cost

$98 - $190

Helpful Inaccurate

There are 908.01 miles from Markham to George Bush Intercontinental Airport (IAH) in southwest direction and 1,048 miles (1,686.59 kilometers) by car, following the I-57 route.

Markham and IAH Airport are 18 hours 51 mins far apart, if you drive non-stop .

This is the fastest route from Markham, IL to IAH Airport. The halfway point is Madison, AR.

Markham, IL and IAH Airport are in the same time zone (CDT). Current time in both locations is 4:20 am.

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Lowest Price Rental Cars in Markham, IL

Planning on renting a car to go from Markham, IL to IAH Airport? Here there are some offers to rent a car in Markham, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Markham »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 42.08 gallons of gas to cover the route between Markham, IL and IAH Airport.

The estimated cost of gas to go from Markham to IAH Airport is $137.28.

During the route, an average car will release 824.53 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Markham, IL and IAH Airport

If you want to meet halfway between Markham, IL and IAH Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 35.025806 and -90.717545, or 35º 1' 32.9016" N, 90º 43' 3.162" W. This location is 523.96 miles away from Markham, IL and IAH Airport and it would take approximately 9 hours 25 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Madison, AR, situated 536 miles from Markham, IL and 520 miles from IAH Airport. It would take 8 hours 47 mins to go from Markham to Madison and 9 hours 1 min to go from IAH to Madison.