PumpTally

Moving truck gas cost from Seattle, WA to Phoenix, AZ

The drive is about 1,393 miles. In a 15 to 17 ft rental truck getting around 9 MPG, fuel comes to roughly $815 at this week’s prices.

SeattlePhoenix

Routes from OSRM using© OpenStreetMap contributors data

Driving distance
1,393 miles
Time behind the wheel
About 27 hours at car speeds
Driving days in a truck
4 days at 450 miles a day
Gas price used
$5.267 a gallon

Adjust the numbers for your move

miles
Trip
MPG

Loaded rental trucks usually get 6 to 12 MPG. If the rental paperwork lists a figure for your truck, use that.

$/ gallon

Starts halfway between Seattle and West Coast (excluding California) prices from EIA for the week of October 19, 2026. Change it to what you pay.

Fuel cost$815.21
Gallons154.8
Per mile$0.59

1,393 miles at 9 MPG

Fuel cost by truck size

Based on 1,393 miles, a gas price of $5.267 and a diesel price of $6.659 a gallon. Towing a car on a trailer or dolly lowers fuel economy by about 15%.

TruckMPGGallonsFuel costTowing a car
Cargo van1687$459$539
10 to 12 ft truck11127$667$785
15 to 17 ft truck9155$815$959
20 to 22 ft truck8174$917$1,079
26 ft truck7199$1,048$1,233
26 ft truck (diesel)8174$1,159$1,364

The gap between the smallest and largest trucks on this route is about $590 in fuel alone, so it pays to rent only as much truck as you need.

Fuel prices at each end of the move

WhereGasDieselPrice basis
Seattle, WA$5.527$6.659Seattle average
Phoenix, AZ$5.007$6.659West Coast (excluding California) average

Gas runs about $0.52 a gallon cheaper around Phoenix, AZ. Most one-way rentals are returned near Phoenix, so that’s the cheaper place to top the tank back up to the level you picked it up at.

Weekly retail averages from the U.S. Energy Information Administration for the week of October 19, 2026. Prices along the way will vary. EIA source

Planning the drive

A loaded box truck is slower than a car on hills and safest at moderate speeds, and most drivers find 450 miles a comfortable day. That makes Seattle, WA to Phoenix, AZ a 4-day drive, so budget for hotel nights and meals on top of fuel. The rental itself and any per-mile fees are charged separately from fuel.

Other moves

Going the other way? See Phoenix, AZ to Seattle, WA.