| Houston to Rury | 5,690.09 mi (9,157.32 km) |
| Houston to Rybnik | 5,602.15 mi (9,015.78 km) |
| Houston to Ryki | 5,653.40 mi (9,098.27 km) |
| Houston to Rypin | 5,509.89 mi (8,867.32 km) |
| Houston to Rzeszow | 5,725.15 mi (9,213.74 km) |
| Houston to Sandomierz | 5,688.36 mi (9,154.53 km) |
| Houston to Sanok | 5,753.73 mi (9,259.73 km) |
| Houston to Sedziszow Malopolski | 5,713.35 mi (9,194.75 km) |
| Houston to Sepolno Krajenskie | 5,430.17 mi (8,739.02 km) |
| Houston to Sidlice | 5,429.96 mi (8,738.67 km) |
| Houston to Siechnice | 5,513.79 mi (8,873.59 km) |
| Houston to Siedlce | 5,641.54 mi (9,079.17 km) |
| Houston to Siemianowice Slaskie | 5,609.65 mi (9,027.85 km) |
| Houston to Siemiatycze | 5,649.43 mi (9,091.88 km) |
| Houston to Sieradz | 5,546.73 mi (8,926.60 km) |
