Distance between cities › USA › Texas › San Leon, TX › Distance from San Leon to Mark Book Hotels

Distance from San Leon, TX to Mark, IL

Distance

1,041 mi

Time

19 hours 24 mins

Gas Cost

$95 - $185

There are 873.94 miles from San Leon to Mark in northeast direction and 1,041 miles (1,675.33 kilometers) by car, following the I-30 route.

San Leon and Mark are 19 hours 24 mins far apart, if you drive non-stop .

This is the fastest route from San Leon, TX to Mark, IL.

San Leon, TX and Mark, IL are in the same time zone (CDT). Current time in both locations is 5:40 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from San Leon, TX to Mark, IL:

Lowest Price Rental Cars in San Leon, TX

Planning on renting a car to go from San Leon, TX to Mark, IL? Here there are some offers to rent a car in San Leon, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in San Leon »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 41.81 gallons of gas to cover the route between San Leon, TX and Mark, IL.

The estimated cost of gas to go from San Leon to Mark is $133.96.

During the route, an average car will release 819.15 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between San Leon, TX and Mark, IL

If you want to meet halfway between San Leon, TX and Mark, IL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 35.297361 and -91.641431, or 35º 17' 50.4996" N, 91º 38' 29.1516" W. This location is 520.54 miles away from San Leon, TX and Mark, IL and it would take approximately 9 hours 42 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Judsonia, AR, situated 522 miles from San Leon, TX and 520 miles from Mark, IL. It would take 9 hours 41 mins to go from San Leon to Judsonia and 9 hours 49 mins to go from Mark to Judsonia.