| Mason City to Imatra | 4,532.86 mi (7,294.94 km) |
| Mason City to Jakobstad | 4,274.41 mi (6,878.99 km) |
| Mason City to Jamsa | 4,416.73 mi (7,108.03 km) |
| Mason City to Janakkala | 4,450.01 mi (7,161.59 km) |
| Mason City to Jarvenpaa | 4,482.06 mi (7,213.18 km) |
| Mason City to Joensuu | 4,482.60 mi (7,214.05 km) |
| Mason City to Joutseno | 4,529.90 mi (7,290.16 km) |
| Mason City to Jyvaskyla | 4,411.45 mi (7,099.54 km) |
| Mason City to Jyvaskylan Maalaiskunta | 4,409.16 mi (7,095.85 km) |
| Mason City to Kaarina | 4,418.66 mi (7,111.15 km) |
| Mason City to Kajaani | 4,357.68 mi (7,013.01 km) |
| Mason City to Kalajoki | 4,274.59 mi (6,879.29 km) |
| Mason City to Kangasala | 4,409.72 mi (7,096.76 km) |
| Mason City to Kankaanpaa | 4,353.94 mi (7,006.98 km) |
| Mason City to Karhula | 4,524.09 mi (7,280.81 km) |
