Distance between cities › USA › South Dakota › Custer, SD › Distance from Custer to Foster Book Hotels

Distance from Custer, SD to Foster, OK

Distance

921 mi

Time

17 hours 19 mins

Gas Cost

$86 - $167

There are 711.35 miles from Custer to Foster in southeast direction and 921 miles (1,482.21 kilometers) by car, following the I-80 route.

Custer and Foster are 17 hours 19 mins far apart, if you drive non-stop .

This is the fastest route from Custer, SD to Foster, OK. The halfway point is Phillips, NE.

Please note the time difference between Custer, SD and Foster, OK is 1 hour. The current time in Custer is 4:13 am and the current time in Foster is 5:13 am.

Any questions or tips to share?

Share with fellow travellers any question or tips about the route from Custer, SD to Foster, OK:

Lowest Price Rental Cars in Custer, SD

Planning on renting a car to go from Custer, SD to Foster, OK? Here there are some offers to rent a car in Custer, SD

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Custer »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 36.99 gallons of gas to cover the route between Custer, SD and Foster, OK.

The estimated cost of gas to go from Custer to Foster is $120.65.

During the route, an average car will release 724.61 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 Custer, SD and Foster, OK

If you want to meet halfway between Custer, SD and Foster, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.819279 and -98.263206, or 40º 49' 9.4044" N, 98º 15' 47.5416" W. This location is 460.46 miles away from Custer, SD and Foster, OK and it would take approximately 8 hours 39 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Phillips, NE, situated 445 miles from Custer, SD and 501 miles from Foster, OK. It would take 7 hours 44 mins to go from Custer to Phillips and 7 hours 34 mins to go from Foster to Phillips.