| Oro Valley to Oschatz | 5,731.66 mi (9,224.22 km) |
| Oro Valley to Oschersleben | 5,640.20 mi (9,077.02 km) |
| Oro Valley to Osnabruck | 5,527.91 mi (8,896.31 km) |
| Oro Valley to Ostbevern | 5,532.58 mi (8,903.84 km) |
| Oro Valley to Osterburg | 5,619.12 mi (9,043.10 km) |
| Oro Valley to Ostercappeln | 5,530.65 mi (8,900.73 km) |
| Oro Valley to Osterhofen | 5,856.52 mi (9,425.16 km) |
| Oro Valley to Osterholz-Scharmbeck | 5,508.47 mi (8,865.03 km) |
| Oro Valley to Osternienburg | 5,674.09 mi (9,131.56 km) |
| Oro Valley to Osterode | 5,622.99 mi (9,049.32 km) |
| Oro Valley to Osterwieck | 5,626.15 mi (9,054.41 km) |
| Oro Valley to Ostfildern | 5,731.44 mi (9,223.86 km) |
| Oro Valley to Osthofen | 5,655.37 mi (9,101.44 km) |
| Oro Valley to Ostrhauderfehn | 5,476.31 mi (8,813.27 km) |
| Oro Valley to Ostringen | 5,690.72 mi (9,158.34 km) |
