Distance between cities › USA › Illinois › McCook, IL › Distance from McCook to Big Flat Book Hotels

Distance from McCook, IL to Big Flat, AR

Distance

571 mi

Time

11 hours 40 mins

Gas Cost

$53 - $104

There are 469.39 miles from McCook to Big Flat in southwest direction and 571 miles (918.94 kilometers) by car, following the I-55 route.

McCook and Big Flat are 11 hours 40 mins far apart, if you drive non-stop .

This is the fastest route from McCook, IL to Big Flat, AR.

McCook, IL and Big Flat, AR are in the same time zone (CDT). Current time in both locations is 9:20 pm.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from McCook, IL to Big Flat, AR:

Lowest Price Rental Cars in McCook, IL

Planning on renting a car to go from McCook, IL to Big Flat, AR? Here there are some offers to rent a car in McCook, IL

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in McCook »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 22.95 gallons of gas to cover the route between McCook, IL and Big Flat, AR.

The estimated cost of gas to go from McCook to Big Flat is $74.85.

During the route, an average car will release 449.54 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 McCook, IL and Big Flat, AR

If you want to meet halfway between McCook, IL and Big Flat, AR or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 38.61925 and -90.282041, or 38º 37' 9.3" N, 90º 16' 55.3476" W. This location is 285.67 miles away from McCook, IL and Big Flat, AR and it would take approximately 5 hours 50 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Richmond Heights, MO, situated 290 miles from McCook, IL and 284 miles from Big Flat, AR. It would take 5 hours 26 mins to go from McCook to Richmond Heights and 6 hours 19 mins to go from Big Flat to Richmond Heights.

Major City Closest to Halfway Point

The major city closest to the halfway point between McCook, IL and Big Flat, AR is Saint Louis, MO, situated 284 miles from McCook, IL and 289 miles from Big Flat, AR. It would take 5 hours 19 mins to go from McCook to Saint Louis and 6 hours 26 mins to go from Big Flat to Saint Louis.