Distance between cities › USA › Montana › Pray, MT › Distance from Pray to Saint Onge Book Hotels

Distance from Pray, MT to Saint Onge, SD

Distance

411 mi

Time

7 hours 26 mins

Gas Cost

$38 - $74

There are 345.03 miles from Pray to Saint Onge in east direction and 411 miles (661.44 kilometers) by car, following the I-90 and US-191 route.

Pray and Saint Onge are 7 hours 26 mins far apart, if you drive non-stop .

This is the fastest route from Pray, MT to Saint Onge, SD.

Pray, MT and Saint Onge, SD are in the same time zone (MDT). Current time in both locations is 2:21 pm.

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Lowest Price Rental Cars in Pray, MT

Planning on renting a car to go from Pray, MT to Saint Onge, SD? Here there are some offers to rent a car in Pray, MT

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Pray »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 16.49 gallons of gas to cover the route between Pray, MT and Saint Onge, SD.

The estimated cost of gas to go from Pray to Saint Onge is $53.80.

During the route, an average car will release 323.10 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 Pray, MT and Saint Onge, SD

If you want to meet halfway between Pray, MT and Saint Onge, SD or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 45.535444 and -107.280144, or 45º 32' 7.5984" N, 107º 16' 48.5184" W. This location is 205.32 miles away from Pray, MT and Saint Onge, SD and it would take approximately 3 hours 43 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Garryowen, MT, situated 201 miles from Pray, MT and 217 miles from Saint Onge, SD. It would take 3 hours 27 mins to go from Pray to Garryowen and 4 hours 8 mins to go from Saint Onge to Garryowen.