| Giffnock to Joliet (Illinois) | 3,703.89 mi (5,960.84 km) |
| Giffnock to Jonesboro (Arkansas) | 4,086.73 mi (6,576.96 km) |
| Giffnock to Joplin (Missouri) | 4,159.16 mi (6,693.52 km) |
| Giffnock to Joppatowne (Maryland) | 3,370.32 mi (5,424.00 km) |
| Giffnock to Juana Díaz (Puerto Rico) | 4,120.61 mi (6,631.48 km) |
| Giffnock to Junction City (Kansas) | 4,139.34 mi (6,661.62 km) |
| Giffnock to Juneau (Alaska) | 4,070.31 mi (6,550.53 km) |
| Giffnock to Jupiter (Florida) | 4,158.15 mi (6,691.89 km) |
| Giffnock to Jupiter Farms (Florida) | 4,162.14 mi (6,698.31 km) |
| Giffnock to Jurupa Valley (California) | 5,098.34 mi (8,204.99 km) |
| Giffnock to Justice (Illinois) | 3,681.11 mi (5,924.18 km) |
| Giffnock to Kahului (Hawaii) | 6,893.43 mi (11,093.90 km) |
| Giffnock to Kailua (Hawaii) | 6,880.19 mi (11,072.59 km) |
| Giffnock to Kalamazoo (Michigan) | 3,574.30 mi (5,752.27 km) |
| Giffnock to Kalispell (Montana) | 4,198.10 mi (6,756.20 km) |
