| Cicero to Oerlinghausen | 4,263.08 mi (6,860.77 km) |
| Cicero to Oestrich-Winkel | 4,312.81 mi (6,940.80 km) |
| Cicero to Offenburg | 4,368.88 mi (7,031.04 km) |
| Cicero to Oftersheim | 4,358.63 mi (7,014.54 km) |
| Cicero to Ohrdruf | 4,380.81 mi (7,050.23 km) |
| Cicero to Ohringen | 4,399.39 mi (7,080.13 km) |
| Cicero to Olbernhau | 4,480.01 mi (7,209.88 km) |
| Cicero to Olching | 4,506.90 mi (7,253.16 km) |
| Cicero to Oldenburg | 4,203.47 mi (6,764.83 km) |
| Cicero to Oldenburg in Holstein | 4,252.54 mi (6,843.80 km) |
| Cicero to Olfen | 4,226.12 mi (6,801.28 km) |
| Cicero to Olpe | 4,268.43 mi (6,869.37 km) |
| Cicero to Olsberg | 4,279.60 mi (6,887.35 km) |
| Cicero to Oranienburg | 4,392.49 mi (7,069.03 km) |
| Cicero to Ortenberg | 4,338.19 mi (6,981.65 km) |
