| Woburn to Oerlinghausen | 3,609.75 mi (5,809.34 km) |
| Woburn to Oestrich-Winkel | 3,638.20 mi (5,855.11 km) |
| Woburn to Offenburg | 3,680.01 mi (5,922.40 km) |
| Woburn to Oftersheim | 3,680.13 mi (5,922.60 km) |
| Woburn to Ohrdruf | 3,723.33 mi (5,992.12 km) |
| Woburn to Ohringen | 3,722.45 mi (5,990.70 km) |
| Woburn to Olbernhau | 3,830.29 mi (6,164.26 km) |
| Woburn to Olching | 3,827.43 mi (6,159.66 km) |
| Woburn to Oldenburg | 3,560.70 mi (5,730.39 km) |
| Woburn to Oldenburg in Holstein | 3,630.66 mi (5,842.98 km) |
| Woburn to Olfen | 3,566.11 mi (5,739.11 km) |
| Woburn to Olpe | 3,602.98 mi (5,798.44 km) |
| Woburn to Olsberg | 3,619.55 mi (5,825.11 km) |
| Woburn to Oranienburg | 3,762.73 mi (6,055.53 km) |
| Woburn to Ortenberg | 3,670.47 mi (5,907.05 km) |
