Drag the line on the map to calculate the driving distance for a different route.
The total driving distance from Ottawa, Canada to Buffalo, NY is 336 miles or 541 kilometers.
Your trip begins in Ottawa, Canada. It ends in Buffalo, New York.
If you are planning a road trip, you might also want to calculate the total driving time from Ottawa, Canada to Buffalo, NY so you can see when you'll arrive at your destination.
You can also calculate the cost of driving from Ottawa, Canada to Buffalo, NY based on current local fuel prices and an estimate of your car's best gas mileage.
If you're meeting a friend, you might be interested in finding the city that is halfway between Ottawa, Canada and Buffalo, NY.
Planning to fly a plane instead? You might be more interested in calculating the straight line distance to fly from Ottawa, Canada to Buffalo, NY.