| Naperville to Oschatz | 4,465.48 mi (7,186.50 km) |
| Naperville to Oschersleben | 4,371.91 mi (7,035.91 km) |
| Naperville to Osnabruck | 4,248.59 mi (6,837.44 km) |
| Naperville to Ostbevern | 4,250.34 mi (6,840.26 km) |
| Naperville to Osterburg | 4,359.85 mi (7,016.50 km) |
| Naperville to Ostercappeln | 4,252.65 mi (6,843.97 km) |
| Naperville to Osterhofen | 4,568.86 mi (7,352.88 km) |
| Naperville to Osterholz-Scharmbeck | 4,240.46 mi (6,824.36 km) |
| Naperville to Osternienburg | 4,407.29 mi (7,092.85 km) |
| Naperville to Osterode | 4,347.94 mi (6,997.33 km) |
| Naperville to Osterwieck | 4,355.13 mi (7,008.90 km) |
| Naperville to Ostfildern | 4,428.12 mi (7,126.37 km) |
| Naperville to Osthofen | 4,355.90 mi (7,010.14 km) |
| Naperville to Ostrhauderfehn | 4,202.62 mi (6,763.46 km) |
| Naperville to Ostringen | 4,388.97 mi (7,063.36 km) |
