| Arta to Oerlinghausen | 1,063.36 mi (1,711.32 km) |
| Arta to Oestrich-Winkel | 981.47 mi (1,579.53 km) |
| Arta to Offenburg | 912.27 mi (1,468.15 km) |
| Arta to Oftersheim | 932.32 mi (1,500.43 km) |
| Arta to Ohrdruf | 946.89 mi (1,523.88 km) |
| Arta to Ohringen | 894.99 mi (1,440.34 km) |
| Arta to Olbernhau | 877.38 mi (1,412.01 km) |
| Arta to Olching | 788.11 mi (1,268.35 km) |
| Arta to Oldenburg | 1,139.26 mi (1,833.47 km) |
| Arta to Oldenburg in Holstein | 1,147.31 mi (1,846.42 km) |
| Arta to Olfen | 1,085.77 mi (1,747.37 km) |
| Arta to Olpe | 1,037.03 mi (1,668.95 km) |
| Arta to Olsberg | 1,035.49 mi (1,666.47 km) |
| Arta to Oranienburg | 1,008.63 mi (1,623.23 km) |
| Arta to Ortenberg | 967.27 mi (1,556.67 km) |
