Driving comes out ahead — roughly $51 cheaper, though flying is about 37 min quicker.
The honest answer to “Phoenix to Las Vegas: drive or fly?” depends less on the flight time than on everything around it. A nonstop is only about 58 min in the air, but getting to the airport, clearing security, boarding, and reaching your destination at the other end realistically adds around four hours. That pushes the true door-to-door flight time to about 4 hr 58 min, against roughly 5 hr 35 min for the drive.
On cost, a solo driver burns about $39 in fuel each way, while a one-way ticket runs near $90per person. Driving’s big advantage is that the cost is fixed per car, not per head — so the more people travel together, the more the maths tilts toward the road. The table below shows how that plays out.
How the maths changes with your group
| Who is travelling | Drive (fuel, 1 car) | Fly (airfare) | Cheaper |
|---|---|---|---|
| Solo, one way | $39 | $90 | 🚗 Drive |
| 2 travelers, round trip | $78 | $360 | 🚗 Drive |
| 4 travelers, round trip | $78 | $720 | 🚗 Drive |
Fuel assumes 28 mpg at $3.50/gallon; airfare is an estimate per person. Round-trip rows double both legs. Run your exact numbers in the Drive or Fly calculator.
Leaning toward the drive? Map evenly-spaced rest and fuel stops, find a halfway meeting point, or read the full Phoenix to Las Vegas distance & route guide. Pricing the fuel more precisely? Use the trip cost calculator.
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Frequently Asked Questions
For a solo one-way trip, driving is cheaper — about $39 in fuel to drive versus roughly $90 to fly. The gap narrows or flips as you add travelers, since one car carries everyone while airfare is charged per seat.