| Front Royal to Opole | 4,443.66 mi (7,151.38 km) |
| Front Royal to Orzesze | 4,492.92 mi (7,230.65 km) |
| Front Royal to Osowa | 4,332.31 mi (6,972.19 km) |
| Front Royal to Ostroda | 4,410.02 mi (7,097.24 km) |
| Front Royal to Ostroleka | 4,489.11 mi (7,224.52 km) |
| Front Royal to Ostrow Mazowiecka | 4,510.69 mi (7,259.26 km) |
| Front Royal to Ostrow Wielkopolski | 4,404.71 mi (7,088.70 km) |
| Front Royal to Ostrowiec Swietokrzyski | 4,562.46 mi (7,342.57 km) |
| Front Royal to Ostrzeszow | 4,417.19 mi (7,108.79 km) |
| Front Royal to Oswiecim | 4,514.76 mi (7,265.80 km) |
| Front Royal to Otwock | 4,513.53 mi (7,263.82 km) |
| Front Royal to Ozarow Mazowiecki | 4,493.11 mi (7,230.96 km) |
| Front Royal to Ozimek | 4,453.94 mi (7,167.92 km) |
| Front Royal to Ozorkow | 4,447.33 mi (7,157.29 km) |
| Front Royal to Pabianice | 4,462.34 mi (7,181.44 km) |
