| River Forest to Nyon | 4,383.19 mi (7,054.07 km) |
| River Forest to Oberriet | 4,476.24 mi (7,203.81 km) |
| River Forest to Obersiggenthal | 4,420.64 mi (7,114.33 km) |
| River Forest to Oberwil | 4,391.18 mi (7,066.92 km) |
| River Forest to Oberwingert | 4,437.76 mi (7,141.89 km) |
| River Forest to Oftringen | 4,412.82 mi (7,101.75 km) |
| River Forest to Olten | 4,410.88 mi (7,098.62 km) |
| River Forest to Onex | 4,385.62 mi (7,057.97 km) |
| River Forest to Opfikon | 4,433.30 mi (7,134.70 km) |
| River Forest to Ostermundigen | 4,410.36 mi (7,097.78 km) |
| River Forest to Payerne | 4,394.01 mi (7,071.48 km) |
| River Forest to Pfaffikon | 4,444.24 mi (7,152.31 km) |
| River Forest to Plan-les-Ouates | 4,386.92 mi (7,060.07 km) |
| River Forest to Pratteln | 4,396.67 mi (7,075.75 km) |
| River Forest to Prilly | 4,391.88 mi (7,068.05 km) |
