| Council Bluffs to Opole | 4,938.84 mi (7,948.29 km) |
| Council Bluffs to Orzesze | 4,989.50 mi (8,029.83 km) |
| Council Bluffs to Osowa | 4,777.56 mi (7,688.74 km) |
| Council Bluffs to Ostroda | 4,856.15 mi (7,815.22 km) |
| Council Bluffs to Ostroleka | 4,933.81 mi (7,940.21 km) |
| Council Bluffs to Ostrow Mazowiecka | 4,956.68 mi (7,977.00 km) |
| Council Bluffs to Ostrow Wielkopolski | 4,888.57 mi (7,867.40 km) |
| Council Bluffs to Ostrowiec Swietokrzyski | 5,033.83 mi (8,101.16 km) |
| Council Bluffs to Ostrzeszow | 4,903.25 mi (7,891.01 km) |
| Council Bluffs to Oswiecim | 5,009.86 mi (8,062.60 km) |
| Council Bluffs to Otwock | 4,971.56 mi (8,000.95 km) |
| Council Bluffs to Ozarow Mazowiecki | 4,952.70 mi (7,970.60 km) |
| Council Bluffs to Ozimek | 4,947.41 mi (7,962.09 km) |
| Council Bluffs to Ozorkow | 4,918.86 mi (7,916.13 km) |
| Council Bluffs to Pabianice | 4,937.15 mi (7,945.57 km) |
