Distance from Portland to Thornton by Car and Plane

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3. Distance Between Portland and Thornton

The flight distance from Portland (OR) to Thornton (CO) is 977 miles or 1572 kilometers or 848 nautical miles.
Driving distance from Portland to Thornton is 1230 miles (1980 kilometers).
Difference between fly and travel by a car is 253 miles or 408 km.

Portland to Thornton Flight Route Map

Map Showing the Distance Between Portland, OR and Thornton, CO
This map shows the distance from Portland, OR, Usa to Thornton, CO, Usa. You can also see the distance in miles and km below the map. Flight route map from Portland, Oregon to Thornton, Colorado is displayed below.

Driving distance from Portland, OR to Thornton, CO

The driving distance from Portland, Oregon to Thornton, Colorado is 1230 miles or 1980 km.
The total driving distance from Portland, OR to Thornton, CO is 1230 miles or 1980 kilometers. Your trip begins in Portland, Oregon. It ends in Thornton, Colorado.
The driving distance from Portland, Oregon to Thornton, Colorado is approximately 1230 miles (1980 kilometers), depending on the specific route you take. Without considering any traffic or other delays, driving this distance typically takes around 21 to 22 hours under normal conditions.

Driving time from Portland, OR to Thornton, CO

How long is the drive from Portland, OR to Thornton, CO?
The total driving time is 21 hours, 12 minutes.
How long does a car ride from Portland to Thornton take?
Portland and Thornton are 21 hours 12 mins far apart, if you drive non-stop.

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Attention! According to the recommendations of experts, you should stop and take a break every 2 hours on average, take a fresh air and walk a little to protect your alertness and health during long trips by car. In addition, you can drink some coffee to prevent you from sleeping. People who drive constantly without taking a break lose their focus and can eventually cause accidents. Also, please drive carefully and follow the speed rules.

Time Difference between Portland and Thornton

Time difference between Portland (OR) and Thornton (CO) is 0 Hours.

Current local time in Portland	Current local time in Thornton
2025-12-17, 03:45:24 MST	2025-12-17, 03:45:24 MST

How Far is it Between Portland Oregon, USA and Thornton Colorado, USA?

You can compare air and road distance between Portland, OR and Thornton, CO in this summary table of distances in miles, kilometers and nautical miles.

Distance type	Miles	Kilometers	Nautical miles
Driving distance	1230 mi	1980 km	1068.13 nmi
Straight line distance	977 mi	1572 km	848 nmi
Difference	253 mi	408 km	220 nmi

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