Distance between cities › USA › Oregon › Eugene, OR › Distance from Eugene to Saint Ignatius Book Hotels

Distance from Eugene, OR to Saint Ignatius, MT

Distance

643 mi

Time

12 hours 30 mins

Gas Cost

$60 - $117

There are 488.86 miles from Eugene to Saint Ignatius in northeast direction and 643 miles (1,034.81 kilometers) by car, following the I-84 and US-30 route.

Eugene and Saint Ignatius are 12 hours 30 mins far apart, if you drive non-stop .

This is the fastest route from Eugene, OR to Saint Ignatius, MT. The halfway point is Mesa, WA.

Please note the time difference between Eugene, OR and Saint Ignatius, MT is 1 hour. The current time in Eugene is 4:13 am and the current time in Saint Ignatius is 5:13 am.

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Lowest Price Rental Cars in Eugene, OR

Planning on renting a car to go from Eugene, OR to Saint Ignatius, MT? Here there are some offers to rent a car in Eugene, OR

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Eugene »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 25.84 gallons of gas to cover the route between Eugene, OR and Saint Ignatius, MT.

The estimated cost of gas to go from Eugene to Saint Ignatius is $84.28.

During the route, an average car will release 506.18 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 Eugene, OR and Saint Ignatius, MT

If you want to meet halfway between Eugene, OR and Saint Ignatius, MT or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 46.601109 and -118.931351, or 46º 36' 3.9924" N, 118º 55' 52.8636" W. This location is 321.66 miles away from Eugene, OR and Saint Ignatius, MT and it would take approximately 6 hours 15 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Mesa, WA, situated 341 miles from Eugene, OR and 332 miles from Saint Ignatius, MT. It would take 5 hours 37 mins to go from Eugene to Mesa and 4 hours 56 mins to go from Saint Ignatius to Mesa.