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

Distance from Oceanside, CA to Marathon, FL

Distance

2,789 mi

Time

2 days 1 hour

Gas Cost

$260 - $505

There are 2,260.81 miles from Oceanside to Marathon in southeast direction and 2,789 miles (4,488.46 kilometers) by car, following the I-10 route.

Oceanside and Marathon are 2 days 1 hour far apart, if you drive non-stop .

This is the fastest route from Oceanside, CA to Marathon, FL. The halfway point is Flatonia, TX.

Please note the time difference between Oceanside, CA and Marathon, FL is 3 hours. The current time in Oceanside is 1:01 pm and the current time in Marathon is 4:01 pm.

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Lowest Price Rental Cars in Oceanside, CA

Planning on renting a car to go from Oceanside, CA to Marathon, FL? 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 111.99 gallons of gas to cover the route between Oceanside, CA and Marathon, FL.

The estimated cost of gas to go from Oceanside to Marathon is $365.33.

During the route, an average car will release 2,194.19 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 Marathon, FL

If you want to meet halfway between Oceanside, CA and Marathon, FL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 29.694384 and -97.196884, or 29º 41' 39.7824" N, 97º 11' 48.7824" W. This location is 1,394.33 miles away from Oceanside, CA and Marathon, FL and it would take approximately 1 day to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Flatonia, TX, situated 1,389 miles from Oceanside, CA and 1,402 miles from Marathon, FL. It would take 20 hours 34 mins to go from Oceanside to Flatonia and 21 hours 12 mins to go from Marathon to Flatonia.

Major Cities Along the Route

Some major cities along the route include El Paso, TX,Las Cruces, NM,Tucson, AZ,El Cajon, CA,Carlsbad, CA,Lafayette, LA,Beaumont, TX, and Houston, TX.