| Blue Springs to Oerlinghausen | 4,638.30 mi (7,464.62 km) |
| Blue Springs to Oestrich-Winkel | 4,692.16 mi (7,551.30 km) |
| Blue Springs to Offenburg | 4,750.77 mi (7,645.63 km) |
| Blue Springs to Oftersheim | 4,738.60 mi (7,626.04 km) |
| Blue Springs to Ohrdruf | 4,756.50 mi (7,654.85 km) |
| Blue Springs to Ohringen | 4,778.94 mi (7,690.97 km) |
| Blue Springs to Olbernhau | 4,853.74 mi (7,811.34 km) |
| Blue Springs to Olching | 4,886.67 mi (7,864.33 km) |
| Blue Springs to Oldenburg | 4,576.68 mi (7,365.46 km) |
| Blue Springs to Oldenburg in Holstein | 4,620.97 mi (7,436.73 km) |
| Blue Springs to Olfen | 4,602.82 mi (7,407.53 km) |
| Blue Springs to Olpe | 4,646.10 mi (7,477.17 km) |
| Blue Springs to Olsberg | 4,656.15 mi (7,493.34 km) |
| Blue Springs to Oranienburg | 4,762.13 mi (7,663.91 km) |
| Blue Springs to Ortenberg | 4,716.11 mi (7,589.84 km) |
