Interstate 81 is a major north-south interstate highway in the eastern United States. It’s the primary interstate highway between Tennessee and New York along the Appalachian Mountains.
Interstate 81 begins near Knoxville, Tennessee, at an intersection with Interstate 40. The interstate highway passes through the Northeast Tennessee region, a popular place for outdoor recreation in Cherokee National Forest and the Great Smoky Mountains National Park. It intersects with Interstate 26 between Johnson City and Kingsport.
Interstate 81 crosses Southwest Virginia through Bristol, Abingdon, Marion, and Wytheville in Virginia. The popular attractions are Bristol Motor Speedway, Grayson Highlands State Park, and the Appalachian Trail. In Wytheville, Interstates 81 and 77 join briefly until Fort Chiswell.
After passing Christiansburg and Roanoke, Interstate 81 travels through the spectacular Shenandoah Valley. It connects to the Blue Ridge Parkway and Skyline Drive through Shenandoah National Park, two of the most scenic highways in the country.
Interstate 81 passes through a sliver of West Virginia and Maryland. Harpers Ferry is one of the most popular Trail Towns on the Appalachian Trail and a popular weekend getaway destination.
In Pennsylvania, Interstate 81 passes through the Dutch Country Roads of Pennsylvania. Gettysburg National Military Park, the state’s capital at Harrisburg, and Hershey are popular destinations. Then, the interstate highway passes through the Upstate Pennsylvania region through Scranton.
In New York, Interstate 81 skirts the boundary between the Central New York and Finger Lakes regions. After passing through Syracuse, the interstate highway crosses the Thousand Islands – Seaway region.
Interstate 81 ends at the Canadian border on an island in the St. Lawrence River. The Thousand Islands Bridge crosses the international border into Ontario.
Length: 855 miles
Established: 1961
Road Trip Planning Resources
Use these resources to plan an epic road trip on this interstate highway. Visit the Road Trips page for more planning resources and how-to articles.
Tennessee
- Tennessee Vacation – Official DMO for Tennessee
- Northeast Tennessee – Regional DMO covering the mountain region northwest of Knoxville
- Visit Johnson City, TN – Local DMO covering Johnson City, Elizabethton, and the general area
- Visit Kingsport, TN – Local DMO
Virginia
- Virginia is for Lovers – Official DMO for Virginia
- Visit Southwest Virginia – Regional DMO covering the counties southwest of Roanoke
- Visit Bristol – Local DMO
- Visit Abingdon – Local DMO
- Visit Wytheville – Local DMO
- Visit Roanoke – Local DMO covering Roanoke and a portion of the Blue Ridge Parkway
Places to Go
Explore the states this interstate highway passes through and learn more about the things to do. Visit the Destinations page to learn more about all states and regions.
Explore the national park sites you can easily visit from this interstate highway. Visit the National Park System page to see more national park sites.
Explore national forests near this interstate highway. Visit the National Forests page to learn more about the forests across the country.
Travel Articles
Read all articles on this scenic highway and find travel inspiration for your next adventure.
Explore road trip itineraries along this interstate highway. Visit the Road Trips page to find more road trip itineraries, how-to guides, and resources.
Read articles about the national park sites along this interstate highway. Visit the National Parks page to learn more about all national park sites.
Read articles about the national forests along this interstate highway. Visit the National Forests page to learn more about the forests.
Read articles about various trip ideas along this interstate highway. Visit the Trip Ideas page to see more ideas for your next vacation.