| Poplar Bluff to Opole | 4,999.32 mi (8,045.63 km) |
| Poplar Bluff to Orzesze | 5,049.58 mi (8,126.51 km) |
| Poplar Bluff to Osowa | 4,861.96 mi (7,824.57 km) |
| Poplar Bluff to Ostroda | 4,940.64 mi (7,951.20 km) |
| Poplar Bluff to Ostroleka | 5,019.51 mi (8,078.12 km) |
| Poplar Bluff to Ostrow Mazowiecka | 5,041.90 mi (8,114.15 km) |
| Poplar Bluff to Ostrow Wielkopolski | 4,954.50 mi (7,973.50 km) |
| Poplar Bluff to Ostrowiec Swietokrzyski | 5,106.95 mi (8,218.84 km) |
| Poplar Bluff to Ostrzeszow | 4,968.16 mi (7,995.48 km) |
| Poplar Bluff to Oswiecim | 5,070.81 mi (8,160.69 km) |
| Poplar Bluff to Otwock | 5,050.94 mi (8,128.70 km) |
| Poplar Bluff to Ozarow Mazowiecki | 5,031.19 mi (8,096.91 km) |
| Poplar Bluff to Ozimek | 5,008.82 mi (8,060.92 km) |
| Poplar Bluff to Ozorkow | 4,991.18 mi (8,032.53 km) |
| Poplar Bluff to Pabianice | 5,007.94 mi (8,059.51 km) |
