| Oildale to Oerlinghausen | 5,623.89 mi (9,050.77 km) |
| Oildale to Oestrich-Winkel | 5,707.72 mi (9,185.69 km) |
| Oildale to Offenburg | 5,785.76 mi (9,311.28 km) |
| Oildale to Oftersheim | 5,757.72 mi (9,266.16 km) |
| Oildale to Ohrdruf | 5,741.36 mi (9,239.83 km) |
| Oildale to Ohringen | 5,793.35 mi (9,323.50 km) |
| Oildale to Olbernhau | 5,820.40 mi (9,367.03 km) |
| Oildale to Olching | 5,899.25 mi (9,493.93 km) |
| Oildale to Oldenburg | 5,549.97 mi (8,931.81 km) |
| Oildale to Oldenburg in Holstein | 5,559.50 mi (8,947.15 km) |
| Oildale to Olfen | 5,600.85 mi (9,013.69 km) |
| Oildale to Olpe | 5,649.96 mi (9,092.74 km) |
| Oildale to Olsberg | 5,651.04 mi (9,094.48 km) |
| Oildale to Oranienburg | 5,703.22 mi (9,178.44 km) |
| Oildale to Ortenberg | 5,719.47 mi (9,204.60 km) |
