Is I-70 a scenic route?

Yes, the stretch through the Colorado Rockies is very scenic.

How long is the drive?

It takes about 18 to 20 hours of driving time.

Are there direct flights?

No, you must connect through a hub like Denver.

What is the best way to travel?

Driving is preferred for flexibility, flying for speed.

Like any major city, stay in well-lit, populated areas.

Cortez

St. Louis

Flight Driving

Cortez to St. Louis

Updated: 28 May 2026

The journey from Cortez to St. Louis spans approximately 1,800 kilometers across the American heartland. Driving is the most common method, utilizing the scenic I-70 corridor through the Rocky Mountains. Alternatively, you can fly from Cortez to Denver and connect to St. Louis Lambert International Airport. The drive offers diverse landscapes from high desert to the rolling plains of Kansas and Missouri. Plan for significant elevation changes and potential weather delays in the mountains.

Total Distance: Driving distance 1,850 km; straight-line air distance 1,500 km.

Fastest Way

Flying from Cortez Municipal Airport with a connection in Denver takes about 6 hours.

Cheapest Way

Driving is generally cheaper for groups or families compared to individual airfare.

Compare Cortez to St. Louis Routes

	Flight Connecting	Driving Direct
Duration	6 hours	18 hours
Avg Price	$400 - $800	$300 - $500
Operator	United Airlines	Personal Vehicle
Route	CEZ to DEN to STL	US-160 E to I-25 N to I-70 E
Tip	Flights from Cortez are limited; book well in advance.	Stop in Denver to break up the long drive across the plains.

Travel Tips

Mountain Driving
Use lower gears when descending mountain passes on I-70.
Time Zones
You will cross from Mountain Time to Central Time during your trip.
Kansas Tolls
Be prepared for toll sections on the Kansas Turnpike.
Hydration
Drink plenty of water as you transition from high altitude to lower elevations.
Rest Stops
Utilize the well-maintained rest areas along I-70 in Kansas.

Safety Tips

Winter Weather
Check mountain pass conditions before departing in winter months.
Fatigue
Take breaks every 3 hours to avoid driver fatigue on long stretches.
Emergency Kit
Keep a basic tool kit and jumper cables in your trunk.
Traffic
Avoid entering St. Louis during morning and evening rush hours.