Flight
Driving
Mt Vernon to Phoenix
Updated: 28 May 2026
The journey from Mt Vernon to Phoenix is a cross-country trip of approximately 1,600 miles. Most travelers prefer flying from St. Louis Lambert International Airport (STL) to Phoenix Sky Harbor International Airport (PHX), which takes about 4 hours in the air. Driving is a 25-hour journey via I-40 and I-17. This route crosses the Great Plains, the Rocky Mountains, and the desert Southwest, making it a major cross-country adventure.
Total Distance: 2,600 km driving distance; 2,200 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 Phoenix Routes
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Direct
|
Direct
|
|
|---|---|---|
| Duration | 4 hours | 25 hours |
| Avg Price | $200-$400 round trip | $300-$400 in fuel |
| Operator | Southwest / American | Personal Vehicle |
| Route | STL to PHX. | I-40 W to I-17 S. |
| Tip | Book flights early to secure direct routes. | Expect desert heat and mountain driving. |
Travel Tips
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Airport ChoicePhoenix Sky Harbor (PHX) is the most convenient for city access.
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TransportationRent a car; Phoenix is a sprawling city.
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WeatherThe desert heat is intense; stay hydrated.
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DiningTry the authentic Mexican cuisine.
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SafetyStay in well-populated areas, especially at night.
Safety Tips
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DrivingDesert driving can be challenging; stay alert.
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WeatherBe aware of extreme heat in the summer.
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City SafetyStay aware of your surroundings in crowded tourist areas.
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EmergencyDial 911 for any emergency situations.
People Also Ask
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Is there a train?Amtrak's Southwest Chief runs to nearby Flagstaff, but you must drive to a station like Kansas City first.
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How long is the flight?The flight time is about 4 hours.
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What is the best way to travel?Flying is the most practical and fastest method.
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Are there tolls?No, this route is generally toll-free.
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Is Phoenix safe?Yes, it is generally safe, but exercise standard city caution.
Quick Info
- From Mt Vernon, Illinois, United States
- To Phoenix, Arizona, United States
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Modes
Best Time to Travel
Winter and Spring offer the best weather for visiting Phoenix.
Things to Do in Phoenix
1
Desert Botanical Garden
A stunning garden featuring desert plants from around the world.
2
Heard Museum
A world-class museum dedicated to the art and culture of Native Americans.
3
Camelback Mountain
A popular hiking spot with stunning views of the city.
4
Phoenix Art Museum
A world-class art museum with a vast collection.
Tags
Mt Vernon to Phoenix
flying to Phoenix
driving to Phoenix
I-40 to I-17
Arizona travel
Mt Vernon to Phoenix
Southwest travel
Phoenix travel guide
