Distance from Amarillo, TX to Fort Smith, AR is 439Miles or 706 Km. You can get this distance about 6 hours 35 mins. If you want to planning travel with plane for 420 Miles or 676 Km, You can get this distance about 1 hours 24 mins .
A car with an average MPG will needs 20.32 gallons of gas to get the route between these points.
The estimated cost of gas to get between Amarillo, TX and Fort Smith, AR is $46.13.
During the route, an average car will release 398.11 pounds of CO2 to the atmosphere. Your carbon footprint is 0.91 pounds of CO2 per mile.
* Average US MPG used for calculations is 21.6 MPG.
* Average US gas price used for calculation is 2.27 per gallon.