The route from Troy, Missouri to Las Vegas, Nevada spans approximately 2,600 kilometers. Driving involves taking I-70 west through Denver and Utah, eventually connecting to I-15 south. This is a scenic but long drive that takes roughly 25 hours of pure driving time. Flying from St. Louis Lambert International Airport is the most efficient method, with many airlines offering direct or one-stop service to Harry Reid International Airport. You will cross the Rocky Mountains and the Great Basin on this journey.
Total Distance: 2,600 km driving distance; 2,250 km straight-line air distance.
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Direct
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Direct
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|---|---|---|
| Duration | 3 hours 30 mins | 25 hours |
| Avg Price | $120 - $400 | $450 - $650 in fuel |
| Operator | Southwest Airlines | Personal Vehicle |
| Route | STL to LAS | I-70 W to I-15 S through Denver and Salt Lake City. |
| Tip | Flights are often cheaper on Tuesday and Wednesday. | Be prepared for mountain driving conditions in Colorado and Utah. |
March to May or September to November for comfortable temperatures.