The route starts at Nakornping Hospital as a ground level structure, running along Chotana Road (Highway No. 107) until the Chiang Mai Court intersection. It then turns right, following Somphot 700th Anniversary Chiang Mai Years Road until the Somphot 700th Anniversary Chiang Mai Stadium intersection. After crossing the Chonprathan canal, it turns left onto Chonprathan Road, continuing until the NongHor intersection. From there, it turns left, running along to NongHor Road (Highway No. 1366) until the Kong Kamlung Pha Muang intersection, The alignment transitions into an underground tunnel. It then turns right again along Chotana Road, passing under Khuang Sing intersection underpass, and continues along Chang Phuak Road, past Chiang Mai Rajabhat University, until Manee Nopparat Road (the northern outer moat road). It then turns right until Jang Hua Lin Corner, then turns left along Boonruangrit Road, passing Maharaj Nakorn Chiang Mai Hospital until Jang Ku Huang Corner. It continues along Mahidol Road (Highway No. 1141) until the Chiang Mai International Airport intersection, then proceeds straight along the drainage canal beside Chiang Mai International Airport, where it changes back to an at-grade structure. Finally, it runs out onto Chiang Mai - Hang Dong Road (Highway No. 108) and finally terminates at the Mae-Hia Saman Samakee intersection.