| Owings Mills to Nowy Dwor Mazowiecki | 4,407.34 mi (7,092.93 km) |
| Owings Mills to Nowy Sacz | 4,509.33 mi (7,257.06 km) |
| Owings Mills to Nowy Targ | 4,489.35 mi (7,224.92 km) |
| Owings Mills to Nowy Tomysl | 4,243.86 mi (6,829.83 km) |
| Owings Mills to Nysa | 4,351.42 mi (7,002.94 km) |
| Owings Mills to Oborniki | 4,258.05 mi (6,852.67 km) |
| Owings Mills to Oborniki Slaskie | 4,306.67 mi (6,930.92 km) |
| Owings Mills to Olawa | 4,334.18 mi (6,975.19 km) |
| Owings Mills to Olecko | 4,412.20 mi (7,100.75 km) |
| Owings Mills to Olesnica | 4,328.14 mi (6,965.47 km) |
| Owings Mills to Olesno | 4,378.24 mi (7,046.10 km) |
| Owings Mills to Olkusz | 4,442.57 mi (7,149.62 km) |
| Owings Mills to Olsztyn | 4,351.04 mi (7,002.32 km) |
| Owings Mills to Opalenica | 4,254.55 mi (6,847.03 km) |
| Owings Mills to Opoczno | 4,429.80 mi (7,129.07 km) |
