Distance between cities › USA › South Dakota › Webster, SD › Distance from Webster to Cyril Book Hotels

Distance from Webster, SD to Cyril, OK

Distance

790 mi

Time

14 hours 47 mins

Gas Cost

$74 - $143

There are 721.93 miles from Webster to Cyril in south direction and 790 miles (1,271.38 kilometers) by car, following the US-81 route.

Webster and Cyril are 14 hours 47 mins far apart, if you drive non-stop .

This is the fastest route from Webster, SD to Cyril, OK.

Webster, SD and Cyril, OK are in the same time zone (CDT). Current time in both locations is 9:00 am.

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Lowest Price Rental Cars in Webster, SD

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

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Webster »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 31.74 gallons of gas to cover the route between Webster, SD and Cyril, OK.

The estimated cost of gas to go from Webster to Cyril is $103.52.

During the route, an average car will release 621.76 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 Webster, SD and Cyril, OK

If you want to meet halfway between Webster, SD and Cyril, OK or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 40.038989 and -97.614383, or 40º 2' 20.3604" N, 97º 36' 51.7788" W. This location is 395.11 miles away from Webster, SD and Cyril, OK and it would take approximately 7 hours 23 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Chester, NE, situated 398 miles from Webster, SD and 393 miles from Cyril, OK. It would take 7 hours 49 mins to go from Webster to Chester and 7 hours 1 min to go from Cyril to Chester.