Distance between cities › USA › North Carolina › Mill Spring, NC › Distance from Mill Spring to Siesta Key Book Hotels

Distance from Mill Spring, NC to Siesta Key, FL

Distance

663 mi

Time

12 hours 24 mins

Gas Cost

$61 - $118

There are 555.34 miles from Mill Spring to Siesta Key in south direction and 663 miles (1,067.00 kilometers) by car, following the I-95 route.

Mill Spring and Siesta Key are 12 hours 24 mins far apart, if you drive non-stop .

This is the fastest route from Mill Spring, NC to Siesta Key, FL.

Mill Spring, NC and Siesta Key, FL are in the same time zone (EDT). Current time in both locations is 1:57 am.

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Lowest Price Rental Cars in Mill Spring, NC

Planning on renting a car to go from Mill Spring, NC to Siesta Key, FL? Here there are some offers to rent a car in Mill Spring, NC

Small

From $14

Intermediate

From $18

Full-size

From $24

SUVs

From $28

Vans

From $40

Compare rental car prices in Mill Spring »

Gas Consumption and Emissions

A car with a fuel efficiency of MPG will need 26.62 gallons of gas to cover the route between Mill Spring, NC and Siesta Key, FL.

The estimated cost of gas to go from Mill Spring to Siesta Key is $85.29.

During the route, an average car will release 521.52 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 $3.20 per gallon of regular gas. Price last updated on March 11, 2026.
Read more about our CO₂ calculation.

Halfway Point Between Mill Spring, NC and Siesta Key, FL

If you want to meet halfway between Mill Spring, NC and Siesta Key, FL or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 31.408336 and -81.445545, or 31º 24' 30.0096" N, 81º 26' 43.962" W. This location is 331.41 miles away from Mill Spring, NC and Siesta Key, FL and it would take approximately 6 hours 12 mins to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Darien, GA, situated 330 miles from Mill Spring, NC and 335 miles from Siesta Key, FL. It would take 6 hours 3 mins to go from Mill Spring to Darien and 6 hours 27 mins to go from Siesta Key to Darien.