| Western Springs to Oschatz | 4,453.44 mi (7,167.12 km) |
| Western Springs to Oschersleben | 4,359.86 mi (7,016.51 km) |
| Western Springs to Osnabruck | 4,236.41 mi (6,817.85 km) |
| Western Springs to Ostbevern | 4,238.12 mi (6,820.60 km) |
| Western Springs to Osterburg | 4,347.92 mi (6,997.30 km) |
| Western Springs to Ostercappeln | 4,240.49 mi (6,824.40 km) |
| Western Springs to Osterhofen | 4,556.53 mi (7,333.02 km) |
| Western Springs to Osterholz-Scharmbeck | 4,228.43 mi (6,805.00 km) |
| Western Springs to Osternienburg | 4,395.25 mi (7,073.47 km) |
| Western Springs to Osterode | 4,335.80 mi (6,977.80 km) |
| Western Springs to Osterwieck | 4,343.04 mi (6,989.45 km) |
| Western Springs to Ostfildern | 4,415.60 mi (7,106.22 km) |
| Western Springs to Osthofen | 4,343.44 mi (6,990.08 km) |
| Western Springs to Ostrhauderfehn | 4,190.53 mi (6,744.00 km) |
| Western Springs to Ostringen | 4,376.47 mi (7,043.25 km) |
