Distance between cities › USA › Texas › Southmayd, TX › Distance from Southmayd to Libby Book Hotels

Distance from Southmayd, TX to Libby, MT

Distance

1,829 mi

Time

1 day 8 hours

Gas Cost

$170 - $331

There are 1,406.43 miles from Southmayd to Libby in northwest direction and 1,829 miles (2,943.49 kilometers) by car, following the I-25 route.

Southmayd and Libby are 1 day 8 hours far apart, if you drive non-stop .

This is the fastest route from Southmayd, TX to Libby, MT.

Please note the time difference between Southmayd, TX and Libby, MT is 1 hour. The current time in Southmayd is 12:34 am (Mar 13) and the current time in Libby is 11:34 pm (Mar 12).

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Lowest Price Rental Cars in Southmayd, TX

Planning on renting a car to go from Southmayd, TX to Libby, MT? Here there are some offers to rent a car in Southmayd, TX

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Southmayd »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 73.46 gallons of gas to cover the route between Southmayd, TX and Libby, MT.

The estimated cost of gas to go from Southmayd to Libby is $239.63.

During the route, an average car will release 1,439.27 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 Southmayd, TX and Libby, MT

If you want to meet halfway between Southmayd, TX and Libby, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.71901 and -105.306696, or 42º 43' 8.436" N, 105º 18' 24.1056" W. This location is 914.60 miles away from Southmayd, TX and Libby, MT and it would take approximately 16 hours 7 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Douglas, WY, situated 967 miles from Southmayd, TX and 862 miles from Libby, MT. It would take 17 hours 28 mins to go from Southmayd to Douglas and 14 hours 49 mins to go from Libby to Douglas.