There is no direct train service to Las Vegas.

How long is the flight?

The flight time is about 4 hours.

What is the best way to travel?

Flying is the most practical and fastest method.

No, this route is generally toll-free.

Yes, it is generally safe, but exercise standard city caution.

Mt Vernon

Las Vegas

Flight Driving

Mt Vernon to Las Vegas

Updated: 28 May 2026

The journey from Mt Vernon to Las Vegas is a cross-country trip of approximately 1,700 miles. Most travelers prefer flying from St. Louis Lambert International Airport (STL) to Harry Reid International Airport (LAS), which takes about 4 hours in the air. Driving is a 26-hour journey via I-70 and I-15. This route crosses the Great Plains, the Rocky Mountains, and the desert Southwest, making it a major cross-country adventure.

Total Distance: 2,700 km driving distance; 2,300 km straight-line air distance.

Fastest Way

Flying is significantly faster, taking about 6 hours total including airport time.

Cheapest Way

Flying is often cheaper than the total cost of fuel, tolls, and overnight stays for driving.

Compare Mt Vernon to Las Vegas Routes

	Flight Direct	Driving Direct
Duration	4 hours	26 hours
Avg Price	$200-$400 round trip	$300-$400 in fuel
Operator	Southwest / Spirit	Personal Vehicle
Route	STL to LAS.	I-70 W to I-15 S.
Tip	Book flights early to secure direct routes.	Expect desert heat and mountain driving.

Travel Tips

Airport Choice
Harry Reid International (LAS) is the most convenient for city access.
Transportation
Use ride-sharing services; the Strip is very walkable.
Weather
The desert heat is intense; stay hydrated.
Dining
Try the world-class buffets and fine dining.
Safety
Stay in well-populated areas, especially at night.