| Mount Holly to Opole | 4,731.93 mi (7,615.30 km) |
| Mount Holly to Orzesze | 4,780.99 mi (7,694.26 km) |
| Mount Holly to Osowa | 4,623.77 mi (7,441.24 km) |
| Mount Holly to Ostroda | 4,701.33 mi (7,566.06 km) |
| Mount Holly to Ostroleka | 4,780.38 mi (7,693.28 km) |
| Mount Holly to Ostrow Mazowiecka | 4,801.88 mi (7,727.87 km) |
| Mount Holly to Ostrow Wielkopolski | 4,693.85 mi (7,554.02 km) |
| Mount Holly to Ostrowiec Swietokrzyski | 4,852.14 mi (7,808.77 km) |
| Mount Holly to Ostrzeszow | 4,706.16 mi (7,573.83 km) |
| Mount Holly to Oswiecim | 4,802.90 mi (7,729.51 km) |
| Mount Holly to Otwock | 4,804.07 mi (7,731.40 km) |
| Mount Holly to Ozarow Mazowiecki | 4,783.60 mi (7,698.45 km) |
| Mount Holly to Ozimek | 4,742.31 mi (7,632.02 km) |
| Mount Holly to Ozorkow | 4,737.19 mi (7,623.77 km) |
| Mount Holly to Pabianice | 4,751.97 mi (7,647.55 km) |
