The drive from Chattanooga to Lexington, Kentucky covers 360 miles and takes between 5.5 and 6 hours depending on which route you choose and traffic conditions around Nashville. This guide covers the practical details you need to plan the journey, evaluate your route options, and decide whether to break the trip into two days.
The most direct route uses I-75 North straight through Knoxville and into Kentucky, a 360-mile drive that typically takes 5.5 hours in light traffic. You pass through central Tennessee and the foothills of the Great Smoky Mountains but stay on a single highway for most of the journey. This route works best if you want to minimize decision points and drive time.
The alternative uses I-24 East toward Nashville, then connects to I-81 North near Crossville. This route stretches to roughly 380 miles and adds 45 minutes to an hour to your travel time, but it takes you through different terrain and passes closer to the Cumberland Plateau. Choose this option only if you have a specific reason to go through that region or if I-75 has reported delays.
A few travelers ask about US-27 North from Chattanooga, which winds through smaller towns and scenic areas but extends the journey to 8+ hours and introduces numerous traffic lights and turns. Reserve this for a leisurely regional exploration rather than point-to-point travel.
I-75 North is the practical choice for most travelers because fuel, rest stops, and lodging are predictable and abundant along a major corridor.
The I-75 corridor has fuel stops at regular intervals. Expect to refuel in Knoxville (roughly 110 miles north of Chattanooga) or shortly after. A second fuel stop makes sense near Corbin, Kentucky (around mile 240), where I-75 passes through a dense cluster of truck stops and gas stations. Plan for fuel costs that vary by market; as of late 2024, Tennessee gas averages $0.10 to $0.20 cheaper per gallon than Kentucky, so filling up before leaving the state saves money on a full tank.
Rest areas dot I-75 in both Tennessee and Kentucky. The Tennessee Welcome Center at mile 1 northbound (just past the Chattanooga area) offers restrooms and basic information. Kentucky's northbound rest areas appear at mile 41 and mile 90 once you cross the state line. Plan a 15-minute stop every 2 to 2.5 hours if you're driving alone.
A single 5.5-hour drive is manageable for most travelers, but several circumstances make an overnight stop sensible. If you're leaving Chattanooga in late afternoon or evening, arriving in Lexington after dark, or if you have passengers under 12 or over 65, splitting the drive reduces fatigue and accident risk.
Knoxville, located at mile 110 on I-75, is the natural midpoint. It has national hotel chains (Holiday Inn, Best Western, and budget options like La Quinta and Motel 6) concentrated near I-75 exits 108 through 112. Rates typically run $60 to $90 per night in the off-season and climb to $100 to $130 during University of Tennessee event weekends, primarily fall football season from September through November.
Corbin, Kentucky, sits at mile 240 and is the second practical overnight option. It's smaller than Knoxville with fewer lodging choices, but rates are generally lower ($50 to $70) because it's less of a destination city. The trade-off is that you're breaking the trip less evenly: it's 240 miles from Chattanooga but only 120 miles to Lexington, so you're driving significantly longer on the first day.
I-75 North feeds directly into Lexington's central interchange system. The highway becomes New Circle Road or continues as local surface streets depending on your destination within the city. If you're heading downtown, exit toward Main Street or Vine Street; both connect to historic Lexington's core. If your lodging or business is on the east side of the city, stay on I-75 longer and exit toward Man O' War Boulevard or Richmond Road.
Lexington traffic peaks on weekday mornings (7 to 9 a.m.) and late afternoons (4 to 6 p.m.). If you're arriving around these times, expect 10 to 15 extra minutes of slower movement through the interchange area, particularly on weekdays when the University of Kentucky and downtown workers add volume.
Lexington's hotel landscape divides between downtown, near-university properties, and suburban chains along Man O' War Boulevard on the east side. Downtown hotels (Hilton Lexington Downtown, 21c Museum Hotel) run $120 to $200 per night and position you within walking distance of dining and galleries but charge parking fees ($12 to $18 daily). Suburban chains near I-75 exits (Quality Inn, Red Roof Inn) cost $60 to $90 and include free parking but require a car to reach restaurants and attractions.
Choose downtown if you're staying more than one night and planning to explore the city's bourbon district, horse farms, and urban core. Choose the highway corridor if you're passing through for a single night or early morning business meeting.
Drive I-75 North for directness and consistency. Fuel in Knoxville or carry enough gas to reach Corbin comfortably. If you're driving in late afternoon, plan to stop in Knoxville rather than push all the way to Lexington; the extra cost of one hotel night ($70 to $100) is offset by reduced accident risk and a more alert arrival. Arrive in Lexington ready to drive around, not walk; the city sprawls and parking is necessary for accessing most attractions and restaurants.
