| Parkway to Somersworth (New Hampshire) | 2,621.67 mi (4,219.17 km) |
| Parkway to Somerton (Arizona) | 556.61 mi (895.78 km) |
| Parkway to Somerville (Massachusetts) | 2,622.37 mi (4,220.29 km) |
| Parkway to Somerville (New Jersey) | 2,470.65 mi (3,976.13 km) |
| Parkway to Sonoma (California) | 56.45 mi (90.85 km) |
| Parkway to Soquel (California) | 107.23 mi (172.57 km) |
| Parkway to South Bend (Indiana) | 1,859.64 mi (2,992.80 km) |
| Parkway to South Bradenton (Florida) | 2,358.38 mi (3,795.45 km) |
| Parkway to South Burlington (Vermont) | 2,493.56 mi (4,012.99 km) |
| Parkway to South Charleston (West Virginia) | 2,133.94 mi (3,434.25 km) |
| Parkway to South Daytona (Florida) | 2,388.52 mi (3,843.95 km) |
| Parkway to South El Monte (California) | 361.15 mi (581.21 km) |
| Parkway to South Elgin (Illinois) | 1,753.13 mi (2,821.39 km) |
| Parkway to South Euclid (Ohio) | 2,104.43 mi (3,386.76 km) |
| Parkway to South Farmingdale (New York) | 2,527.92 mi (4,068.30 km) |
