Distance between cities › USA › Missouri › Henley, MO › Distance from Henley to Allen Book Hotels

Distance from Henley, MO to Allen, SD

Distance

761 mi

Time

14 hours 57 mins

Gas Cost

$71 - $138

There are 606.36 miles from Henley to Allen in northwest direction and 761 miles (1,224.71 kilometers) by car, following the I-29 and US-59 and US-71 route.

Henley and Allen are 14 hours 57 mins far apart, if you drive non-stop .

This is the fastest route from Henley, MO to Allen, SD. The halfway point is Sioux City, IA.

Please note the time difference between Henley, MO and Allen, SD is 1 hour. The current time in Henley is 7:41 am and the current time in Allen is 6:41 am.

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Lowest Price Rental Cars in Henley, MO

Planning on renting a car to go from Henley, MO to Allen, SD? Here there are some offers to rent a car in Henley, MO

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Henley »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 30.55 gallons of gas to cover the route between Henley, MO and Allen, SD.

The estimated cost of gas to go from Henley to Allen is $99.65.

During the route, an average car will release 598.50 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 Henley, MO and Allen, SD

If you want to meet halfway between Henley, MO and Allen, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 42.514191 and -96.432335, or 42º 30' 51.0876" N, 96º 25' 56.406" W. This location is 380.33 miles away from Henley, MO and Allen, SD and it would take approximately 7 hours 28 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest city to the halfway point is Sioux City, IA, situated 455 miles from Henley, MO and 409 miles from Allen, SD. It would take 8 hours 29 mins to go from Henley to Sioux City and 7 hours 21 mins to go from Allen to Sioux City.