Distance from Longmont, CO to Casper, WY

Driving distance from Longmont, CO to Casper, WY is 254 miles (409 km). How far is it from Longmont, CO to Casper, WY? It's a 03 hours 43 minutes drive by car. Flight distance is approximately 196 miles (315 km) and flight time from Longmont, CO to Casper, WY is 23 minutes. Don't forget to check out our "Gas cost calculator" option. It will calculate cost of driving this particular distance. See the map below for the visual display of the upcoming road trip.

Driving distance
254 Miles
/
409 Km
Driving distance
Gas consumption
10.16 Gallons
38.86 Litres
Gas consumption
Flight distance
196 Miles
/
315 Km
Flight distance

How far is it from Longmont, CO to Casper, WY?

To travel the distance from Longmont, CO to Casper, WY, please, click on the map to see the route for the journey. "Gas Cost Calculator" tool is to your right. You can always modify it and make the number more applicable for your journey.

Book a Hotel for your trip to Casper, WY

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Last distance calculations