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Distance from Oakland to Portland
Route Information
The driving distance from Oakland, New Jersey to Portland, Maine is 339 mi (545.6 km)
The straight-line (air) distance is 272.6 mi (438.7 km)
The estimated flight time is 0 hr 33 min
The estimated travel time by road is 5 hours 8 minutes
Traveling fast highway, long-distance in a northeast direction. Average speeds around 74 mph.
Location Details
Origin:
Destination:
Journey Summary
Traveling from Oakland, New Jersey to Portland, Maine covers 339 mi (545.6 km) in a northeast direction. This fast highway, long-distance route typically takes 5 hours 8 minutes under normal conditions.
Drivers have 3 route options between these locations (322.8-339.0 miles / 519-546 km). The primary route shown here saves 13 minutes compared to alternatives.
The route features scenic views, toll sections. with average speeds around 74 mph (119 km/h).
Available Routes
Route Map Visualization

How is the distance calculated?
Driving distances are based on actual road data. We use advanced routing algorithms that consider traffic, tolls, highways, and local streets. For air distances (as the crow flies), we use the Vincenty formula. It's a precise method that accounts for the Earth's shape and provides accuracy up to 0.5 mm.
When multiple route options exist, we display both the shortest and fastest paths. Travel times are estimated based on typical speeds for each road type, though actual times may vary with traffic and weather conditions. All distances are shown in both miles and kilometers for convenience.