Distance between cities › USA › California › Oceanside, CA › Distance from Oceanside to Williams Book Hotels

Distance from Oceanside, CA to Williams, AZ

Distance

444 mi

Time

8 hours 14 mins

Gas Cost

$41 - $81

There are 328.54 miles from Oceanside to Williams in northeast direction and 444 miles (714.55 kilometers) by car, following the I-40 route.

Oceanside and Williams are 8 hours 14 mins far apart, if you drive non-stop .

This is the fastest route from Oceanside, CA to Williams, AZ. The halfway point is Essex, CA.

Oceanside, CA and Williams, AZ are in the same time zone (PDT). Current time in both locations is 10:49 pm.

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Lowest Price Rental Cars in Oceanside, CA

Planning on renting a car to go from Oceanside, CA to Williams, AZ? Here there are some offers to rent a car in Oceanside, CA

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Oceanside »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 17.84 gallons of gas to cover the route between Oceanside, CA and Williams, AZ.

The estimated cost of gas to go from Oceanside to Williams is $58.20.

During the route, an average car will release 349.58 pounds of CO₂ to the atmosphere. The carbon footprint would be 0.79 pounds of CO₂ per mile.

Average USA gas price used for calculation is $3.26 per gallon of regular gas. Price last updated on March 12, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Oceanside, CA and Williams, AZ

If you want to meet halfway between Oceanside, CA and Williams, AZ or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 34.764030 and -115.475815, or 34º 45' 50.508" N, 115º 28' 32.934" W. This location is 222.14 miles away from Oceanside, CA and Williams, AZ and it would take approximately 4 hours 7 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Essex, CA, situated 254 miles from Oceanside, CA and 216 miles from Williams, AZ. It would take 4 hours 6 mins to go from Oceanside to Essex and 3 hours 6 mins to go from Williams to Essex.

Major Cities Along the Route

Some major cities along the route include Temecula, CA,Murrieta, CA,Vista, CA,Moreno Valley, CA,Victorville, CA,San Bernardino, CA,Rialto, CA,Riverside, CA, and Carlsbad, CA.