| Olean to Nyon | 3,993.95 mi (6,427.64 km) |
| Olean to Oberriet | 4,098.64 mi (6,596.12 km) |
| Olean to Obersiggenthal | 4,041.15 mi (6,503.60 km) |
| Olean to Oberwil | 4,010.26 mi (6,453.90 km) |
| Olean to Oberwingert | 4,059.44 mi (6,533.04 km) |
| Olean to Oftringen | 4,031.69 mi (6,488.37 km) |
| Olean to Olten | 4,029.87 mi (6,485.45 km) |
| Olean to Onex | 3,995.13 mi (6,429.54 km) |
| Olean to Opfikon | 4,054.12 mi (6,524.48 km) |
| Olean to Ostermundigen | 4,026.52 mi (6,480.06 km) |
| Olean to Payerne | 4,008.33 mi (6,450.79 km) |
| Olean to Pfaffikon | 4,065.20 mi (6,542.31 km) |
| Olean to Plan-les-Ouates | 3,996.39 mi (6,431.57 km) |
| Olean to Pratteln | 4,016.07 mi (6,463.25 km) |
| Olean to Prilly | 4,004.13 mi (6,444.02 km) |
