| Mayfield Heights to Oerlinghausen | 4,048.32 mi (6,515.15 km) |
| Mayfield Heights to Oestrich-Winkel | 4,088.85 mi (6,580.37 km) |
| Mayfield Heights to Offenburg | 4,138.73 mi (6,660.64 km) |
| Mayfield Heights to Oftersheim | 4,133.08 mi (6,651.55 km) |
| Mayfield Heights to Ohrdruf | 4,164.62 mi (6,702.30 km) |
| Mayfield Heights to Ohringen | 4,174.65 mi (6,718.45 km) |
| Mayfield Heights to Olbernhau | 4,267.54 mi (6,867.94 km) |
| Mayfield Heights to Olching | 4,281.34 mi (6,890.14 km) |
| Mayfield Heights to Oldenburg | 3,993.10 mi (6,426.27 km) |
| Mayfield Heights to Oldenburg in Holstein | 4,051.36 mi (6,520.03 km) |
| Mayfield Heights to Olfen | 4,008.32 mi (6,450.77 km) |
| Mayfield Heights to Olpe | 4,048.38 mi (6,515.24 km) |
| Mayfield Heights to Olsberg | 4,061.96 mi (6,537.09 km) |
| Mayfield Heights to Oranienburg | 4,188.42 mi (6,740.61 km) |
| Mayfield Heights to Ortenberg | 4,117.36 mi (6,626.25 km) |
