Driving from Chattanooga to Myrtle Beach: Route Options, Timing, and Where to Break the Journey

The 450-mile route from Chattanooga to Myrtle Beach takes six to seven hours of driving, depending on your path and traffic conditions. This guide covers the practical decisions you'll face—which interstate corridor to take, where to stop overnight if you're not pushing through, and how the trip changes with your priorities around speed, scenery, or layover towns.

Route Comparison: I-75 South versus the Scenic Inland Alternative

The fastest route uses I-75 South from Chattanooga to Atlanta, then transitions to I-285 East around the perimeter of Atlanta, connecting to I-20 East toward South Carolina. From there, I-20 merges with I-95 South near the state line, and you follow I-95 into the Myrtle Beach area. This corridor is heavily trafficked through the Atlanta metropolitan area, especially on weekday mornings and evenings. The segment through Atlanta can add 45 minutes to an hour if you're traveling during rush hours (7 to 10 a.m. or 4 to 7 p.m.). Gas stations and rest areas are frequent, but you're primarily on interstate highway.

An alternative inland route avoids Atlanta's congestion by taking US-27 South from Chattanooga through Georgia's interior, then picking up I-75 South past Macon, merging back toward I-95 near the South Carolina border. This route is slightly longer in mileage, but often saves time during peak travel hours because it sidesteps Atlanta's bottlenecks. The trade-off is fewer immediate amenities on US-27 through rural Georgia, though towns like Summerville are positioned along the route with basic services.

A third option prioritizes scenery over speed: US-19 South from Chattanooga through the Tennessee mountains into Georgia, eventually connecting to I-75 South. This path adds two to three hours to your total time but passes through the foothills of the Southern Appalachians. It appeals to travelers willing to sacrifice speed for a less repetitive drive, though it still funnels you onto I-75 for much of the remaining distance.

Overnight Stops Worth Considering

If you're traveling with children or prefer not to drive more than three hours at a stretch, Atlanta makes the most obvious midpoint, but it's also the most congested. The Buckhead neighborhood in north Atlanta has concentrated hotel options, though rates typically run $120 to $180 for a standard mid-range room during non-peak seasons. Downtown Atlanta, near the Peachtree Street corridor, offers similar pricing with slightly more walkable dining options.

A less obvious but less crowded option is Macon, Georgia, roughly halfway between Chattanooga and Myrtle Beach on the I-75 corridor. It's about two hours and 45 minutes from Chattanooga and three hours from the Myrtle Beach area. Hotels there average $80 to $130 per night, and the downtown riverfront district near the Ocmulgee River has several independent restaurants and a smaller-scale appeal than Atlanta. Macon also positions you to avoid the worst of Atlanta traffic by arriving after rush hour and departing early the next morning.

Another consideration is stopping in the South Carolina Lowcountry around Beaufort or Savannah if you have time. Beaufort is approximately five hours from Chattanooga and 90 minutes from Myrtle Beach, making it a reasonable evening destination if you split the drive across two days and want to explore somewhere with historical character. Savannah is slightly further but offers more hotel inventory and dining variety.

Fuel and Service Logistics

I-75 South and I-95 South both have fuel stations every 30 to 40 miles, with larger truck stops (Pilot, Love's, TA/Petro) appearing every 50 to 60 miles. If you're renting a car or driving a fuel-efficient vehicle, you'll likely need one tank refill between Chattanooga and Myrtle Beach. Prices vary by location; expect to pay 5 to 15 cents more per gallon at interstate exits than in town centers. The interstate corridor has rest areas maintained by the Georgia and South Carolina departments of transportation, spaced roughly 50 to 70 miles apart, with restrooms and picnic areas but no food service.

Seasonal Traffic Patterns

Winter weekdays (January through February) are the least congested periods. Summer travel, especially late May through early August and holiday weekends, significantly increase I-75 and I-95 traffic. A six-hour drive can stretch to eight hours during peak summer Saturdays, particularly around the Atlanta metro area. Friday afternoons and Sunday evenings typically see the heaviest tourist traffic toward and from the Myrtle Beach area.

Practical Takeaway

For most travelers, I-75 South to I-285 East to I-20 East to I-95 South is the standard choice, with the understanding that Atlanta's metro area will be your slowest segment. If you're avoiding Atlanta's rush hour traffic or prefer not to drive in major urban congestion, US-27 through Georgia's interior or I-75 south of Macon adds modest time but removes that urban highway stress. Budget seven to eight hours door-to-door on weekdays and eight to nine hours on peak summer days. If you're not comfortable driving that distance in one stretch, Macon offers the best combination of location, cost, and size for an overnight stop.