| West Des Moines to Opole | 4,855.32 mi (7,813.88 km) |
| West Des Moines to Orzesze | 4,905.96 mi (7,895.38 km) |
| West Des Moines to Osowa | 4,698.11 mi (7,560.88 km) |
| West Des Moines to Ostroda | 4,776.79 mi (7,687.50 km) |
| West Des Moines to Ostroleka | 4,854.75 mi (7,812.96 km) |
| West Des Moines to Ostrow Mazowiecka | 4,877.55 mi (7,849.65 km) |
| West Des Moines to Ostrow Wielkopolski | 4,805.94 mi (7,734.42 km) |
| West Des Moines to Ostrowiec Swietokrzyski | 4,952.59 mi (7,970.42 km) |
| West Des Moines to Ostrzeszow | 4,820.45 mi (7,757.77 km) |
| West Des Moines to Oswiecim | 4,926.49 mi (7,928.42 km) |
| West Des Moines to Otwock | 4,891.38 mi (7,871.91 km) |
| West Des Moines to Ozarow Mazowiecki | 4,872.34 mi (7,841.28 km) |
| West Des Moines to Ozimek | 4,864.06 mi (7,827.95 km) |
| West Des Moines to Ozorkow | 4,837.37 mi (7,784.99 km) |
| West Des Moines to Pabianice | 4,855.41 mi (7,814.02 km) |
