| Summerlin South to Oerlinghausen | 5,477.49 mi (8,815.16 km) |
| Summerlin South to Oestrich-Winkel | 5,556.94 mi (8,943.03 km) |
| Summerlin South to Offenburg | 5,632.20 mi (9,064.16 km) |
| Summerlin South to Oftersheim | 5,606.58 mi (9,022.92 km) |
| Summerlin South to Ohrdruf | 5,595.58 mi (9,005.21 km) |
| Summerlin South to Ohringen | 5,643.10 mi (9,081.69 km) |
| Summerlin South to Olbernhau | 5,677.84 mi (9,137.60 km) |
| Summerlin South to Olching | 5,749.71 mi (9,253.26 km) |
| Summerlin South to Oldenburg | 5,405.18 mi (8,698.79 km) |
| Summerlin South to Oldenburg in Holstein | 5,420.19 mi (8,722.95 km) |
| Summerlin South to Olfen | 5,452.40 mi (8,774.78 km) |
| Summerlin South to Olpe | 5,500.80 mi (8,852.68 km) |
| Summerlin South to Olsberg | 5,503.29 mi (8,856.70 km) |
| Summerlin South to Oranienburg | 5,564.18 mi (8,954.67 km) |
| Summerlin South to Ortenberg | 5,570.67 mi (8,965.13 km) |
