| Norristown to Oschatz | 4,072.58 mi (6,554.19 km) |
| Norristown to Oschersleben | 3,979.33 mi (6,404.11 km) |
| Norristown to Osnabruck | 3,848.06 mi (6,192.85 km) |
| Norristown to Ostbevern | 3,846.74 mi (6,190.73 km) |
| Norristown to Osterburg | 3,976.45 mi (6,399.48 km) |
| Norristown to Ostercappeln | 3,853.36 mi (6,201.38 km) |
| Norristown to Osterhofen | 4,152.03 mi (6,682.05 km) |
| Norristown to Osterholz-Scharmbeck | 3,851.63 mi (6,198.59 km) |
| Norristown to Osternienburg | 4,015.27 mi (6,461.95 km) |
| Norristown to Osterode | 3,949.21 mi (6,355.64 km) |
| Norristown to Osterwieck | 3,960.26 mi (6,373.42 km) |
| Norristown to Ostfildern | 3,998.01 mi (6,434.17 km) |
| Norristown to Osthofen | 3,931.56 mi (6,327.23 km) |
| Norristown to Ostrhauderfehn | 3,809.07 mi (6,130.10 km) |
| Norristown to Ostringen | 3,961.41 mi (6,375.28 km) |
