| Timonium to Oerlinghausen | 3,961.73 mi (6,375.80 km) |
| Timonium to Oestrich-Winkel | 3,991.18 mi (6,423.19 km) |
| Timonium to Offenburg | 4,033.33 mi (6,491.02 km) |
| Timonium to Oftersheim | 4,033.25 mi (6,490.89 km) |
| Timonium to Ohrdruf | 4,075.63 mi (6,559.08 km) |
| Timonium to Ohringen | 4,075.54 mi (6,558.94 km) |
| Timonium to Olbernhau | 4,182.22 mi (6,730.63 km) |
| Timonium to Olching | 4,180.62 mi (6,728.05 km) |
| Timonium to Oldenburg | 3,911.95 mi (6,295.67 km) |
| Timonium to Oldenburg in Holstein | 3,980.28 mi (6,405.64 km) |
| Timonium to Olfen | 3,918.44 mi (6,306.12 km) |
| Timonium to Olpe | 3,955.60 mi (6,365.92 km) |
| Timonium to Olsberg | 3,971.91 mi (6,392.18 km) |
| Timonium to Oranienburg | 4,113.19 mi (6,619.54 km) |
| Timonium to Ortenberg | 4,023.21 mi (6,474.74 km) |
