| Houston to Nowy Dwor Mazowiecki | 5,578.56 mi (8,977.82 km) |
| Houston to Nowy Sacz | 5,697.42 mi (9,169.11 km) |
| Houston to Nowy Targ | 5,680.03 mi (9,141.13 km) |
| Houston to Nowy Tomysl | 5,427.30 mi (8,734.39 km) |
| Houston to Nysa | 5,542.97 mi (8,920.54 km) |
| Houston to Oborniki | 5,437.79 mi (8,751.28 km) |
| Houston to Oborniki Slaskie | 5,494.46 mi (8,842.48 km) |
| Houston to Olawa | 5,523.17 mi (8,888.68 km) |
| Houston to Olecko | 5,567.68 mi (8,960.32 km) |
| Houston to Olesnica | 5,515.38 mi (8,876.15 km) |
| Houston to Olesno | 5,564.90 mi (8,955.85 km) |
| Houston to Olkusz | 5,629.82 mi (9,060.32 km) |
| Houston to Olsztyn | 5,513.99 mi (8,873.91 km) |
| Houston to Opalenica | 5,437.39 mi (8,750.63 km) |
| Houston to Opoczno | 5,608.75 mi (9,026.42 km) |
