| Knightdale to Opole | 4,611.85 mi (7,422.05 km) |
| Knightdale to Orzesze | 4,660.62 mi (7,500.54 km) |
| Knightdale to Osowa | 4,509.26 mi (7,256.96 km) |
| Knightdale to Ostroda | 4,586.47 mi (7,381.21 km) |
| Knightdale to Ostroleka | 4,665.40 mi (7,508.24 km) |
| Knightdale to Ostrow Mazowiecka | 4,686.69 mi (7,542.50 km) |
| Knightdale to Ostrow Wielkopolski | 4,575.04 mi (7,362.82 km) |
| Knightdale to Ostrowiec Swietokrzyski | 4,734.14 mi (7,618.85 km) |
| Knightdale to Ostrzeszow | 4,587.09 mi (7,382.21 km) |
| Knightdale to Oswiecim | 4,682.61 mi (7,535.93 km) |
| Knightdale to Otwock | 4,687.61 mi (7,543.97 km) |
| Knightdale to Ozarow Mazowiecki | 4,667.03 mi (7,510.87 km) |
| Knightdale to Ozimek | 4,622.37 mi (7,438.99 km) |
| Knightdale to Ozorkow | 4,619.52 mi (7,434.41 km) |
| Knightdale to Pabianice | 4,633.92 mi (7,457.57 km) |
