| Burtonsville to Oerlinghausen | 3,990.28 mi (6,421.73 km) |
| Burtonsville to Oestrich-Winkel | 4,019.52 mi (6,468.80 km) |
| Burtonsville to Offenburg | 4,061.50 mi (6,536.36 km) |
| Burtonsville to Oftersheim | 4,061.54 mi (6,536.42 km) |
| Burtonsville to Ohrdruf | 4,104.12 mi (6,604.94 km) |
| Burtonsville to Ohringen | 4,103.84 mi (6,604.49 km) |
| Burtonsville to Olbernhau | 4,210.77 mi (6,776.58 km) |
| Burtonsville to Olching | 4,208.88 mi (6,773.54 km) |
| Burtonsville to Oldenburg | 3,940.57 mi (6,341.74 km) |
| Burtonsville to Oldenburg in Holstein | 4,009.02 mi (6,451.89 km) |
| Burtonsville to Olfen | 3,946.93 mi (6,351.97 km) |
| Burtonsville to Olpe | 3,984.03 mi (6,411.68 km) |
| Burtonsville to Olsberg | 4,000.40 mi (6,438.02 km) |
| Burtonsville to Oranienburg | 4,141.88 mi (6,665.71 km) |
| Burtonsville to Ortenberg | 4,051.62 mi (6,520.45 km) |
