How Long Does it Take to Hike the AT?

Completing America's most popular long trail is a major time commitment.

Heading out the door? Read this article on the new Outside+ app available now on iOS devices for members! Download the app.

The Appalachian Trail (AT) is one of the most popular long trails for backpackers, dayhikers, and thru-hikers. At 2,149 miles and passing through 14 states and some of the most scenic terrain on the east coast, the AT is a dream hike for many, but tackling the whole thing is a massive undertaking. Thru-hikers, those who endeavor to walk its length in one go, can expect to spend between four and seven months on the trail.

Most AT thru-hikers travel northbound from Georgia to Maine beginning in the spring and finishing in fall. 

Spending roughly half a year living on the trail is a logistical, physical, and mental challenge. While some thru-hikers draw up detailed itineraries ahead of their hikes, it’s important to remain flexible as changing conditions and circumstances almost always influence the timeline. 

Average Pace for AT Hikers

A thru-hiker’s pace will likely change over the course of their trek. A number of factors can influence how long it takes to hike a certain number of miles, like increased fitness over time. Most thru-hikers cover fewer miles at the start of their journey than a few months in. Average hikers travel at roughly 2.5 miles per hour; focused thru-hikers with strong legs might walk upward of 3 miles per hour. 

With this pace, many AT hikers are able to cover 20 or more miles in an average day. Especially fast thru-hikers might average 25 miles per day and even occasionally hike 30 miles in a day. At this rapid pace, a thru-hiker will be able to complete the AT in just a few months. 

Factors that Slow Pace

While strong legs and flat trail make for fast hiking speeds, there are plenty of factors that can slow a hiker down. Injuries, especially those that arise from day-in and day-out hiking and little rest, are common on the AT. Sprained ankles or muscle soreness might slow a hiker’s pace or force them to rest in town for a few days. Variable weather can also influence a hiker’s pace. Most AT thru-hikers start in spring in order to walk through the summer, when conditions are ideal. But if a hiker finds themselves still on the trail in late fall, they might encounter snow, wind, and cold, all of which make it difficult to maintain a strong pace. 

Different sections of the AT also necessitate slower hiking speeds. The White Mountains of New Hampshire, for example, are home to some of the hardest sections of the trail due to their steep elevation gains, rock-strewn treadpath, and variable weather. Hikers that fly through easier states like Connecticut and New Jersey might adopt a slower pace in the Whites.

Anticipating changes in pace is crucial for anyone attempting a successful thru-hike of the AT. Flexibility is a thru-hikers’ best friend when calculating how long it will take to complete the AT. 

A hiker looks down at a map. A green, rocky ridgeline stretches before her.
A hiker on an exposed ridge in the White Mountains of New Hampshire. (Photo: Rebecca Smith/Moment via Getty Images)

Maintaining a Strong Pace

Achieving a solid fitness base before starting a thru-hike allows hikers to hit the ground running at the start of their treks. Regular training hikes with a loaded backpack ahead of a thru-hike will prime the body for big mile days ahead, allowing a hiker to ramp up pace more quickly than if they were thru-hiking off the couch. 

Maintaining a daily schedule on the trail also helps you stay on track and achieve significant mileage goals, even if you aren’t hiking especially fast. 

Section Hiking the AT

For hikers who are unable to spend months away from family, jobs, or other obligations to complete a thru-hike, section hiking is an easily accessible way to experience the trail in its entirety. Rather than hiking the trail in one go, section hikers break the trail into chunks of varying length, completing them as their schedules allow. Section hikes can take anywhere from months to decades to complete. 

Fastest Known Times

While mere mortals spend months hiking the Appalachian Trail, endurance athletes have shattered speed records on the trail. The following are the current records for completing the AT. 

Record Name  Time
Male supported (northbound) Karel Sabbe 41 days, 7 hours, 39 minutes
Male self-supported (northbound)  Joe “Stringbean” McConaughy 45 days, 12 hours, 15 minutes
Female supported (northbound) Liz “Mercury” Anjos 51 days, 16 hours, 30 minutes
Female self-supported (northbound) Elizabeth “Snorkel” Thomas 80 days, 13 hours, 11 minutes
Male supported (southbound) Karl Meltzer 45 days, 22 hours, 38 minutes
Male self-supported (southbound) Joey Campanelli 48 days, 23 hours, 48 minutes
Female supported (southbound) Jennifer Pharr-Davis 46 days, 11 hours, 20 minutes
Female self-supported (southbound)  Heather Anderson  54 hours, 7 hours, 48 minutes