| Rio Grande City to Nyon | 5,577.58 mi (8,976.25 km) |
| Rio Grande City to Oberriet | 5,682.14 mi (9,144.52 km) |
| Rio Grande City to Obersiggenthal | 5,624.80 mi (9,052.24 km) |
| Rio Grande City to Oberwil | 5,594.00 mi (9,002.68 km) |
| Rio Grande City to Oberwingert | 5,643.00 mi (9,081.53 km) |
| Rio Grande City to Oftringen | 5,615.44 mi (9,037.18 km) |
| Rio Grande City to Olten | 5,613.62 mi (9,034.25 km) |
| Rio Grande City to Onex | 5,578.65 mi (8,977.96 km) |
| Rio Grande City to Opfikon | 5,637.75 mi (9,073.09 km) |
| Rio Grande City to Ostermundigen | 5,610.35 mi (9,028.99 km) |
| Rio Grande City to Payerne | 5,592.15 mi (8,999.70 km) |
| Rio Grande City to Pfaffikon | 5,648.82 mi (9,090.90 km) |
| Rio Grande City to Plan-les-Ouates | 5,579.90 mi (8,979.98 km) |
| Rio Grande City to Pratteln | 5,599.80 mi (9,012.00 km) |
| Rio Grande City to Prilly | 5,587.86 mi (8,992.79 km) |
