| Cottage Grove to Orbetello | 4,812.41 mi (7,744.82 km) |
| Cottage Grove to Oria | 5,143.04 mi (8,276.92 km) |
| Cottage Grove to Oristano | 4,830.27 mi (7,773.57 km) |
| Cottage Grove to Orta Nova | 5,031.96 mi (8,098.16 km) |
| Cottage Grove to Orte | 4,855.11 mi (7,813.55 km) |
| Cottage Grove to Ortona | 4,934.44 mi (7,941.22 km) |
| Cottage Grove to Orvieto | 4,832.68 mi (7,777.45 km) |
| Cottage Grove to Orzinuovi | 4,628.12 mi (7,448.24 km) |
| Cottage Grove to Osimo | 4,846.67 mi (7,799.96 km) |
| Cottage Grove to Ospitaletto | 4,626.13 mi (7,445.04 km) |
| Cottage Grove to Ostuni | 5,129.56 mi (8,255.23 km) |
| Cottage Grove to Ottaviano | 5,010.06 mi (8,062.92 km) |
| Cottage Grove to Ovada | 4,615.29 mi (7,427.58 km) |
| Cottage Grove to Ozieri | 4,814.79 mi (7,748.65 km) |
| Cottage Grove to Paceco | 5,076.06 mi (8,169.13 km) |
