| Brent to Opole | 5,221.46 mi (8,403.12 km) |
| Brent to Orzesze | 5,270.70 mi (8,482.37 km) |
| Brent to Osowa | 5,108.77 mi (8,221.77 km) |
| Brent to Ostroda | 5,186.63 mi (8,347.07 km) |
| Brent to Ostroleka | 5,265.74 mi (8,474.39 km) |
| Brent to Ostrow Mazowiecka | 5,287.42 mi (8,509.28 km) |
| Brent to Ostrow Wielkopolski | 5,182.48 mi (8,340.39 km) |
| Brent to Ostrowiec Swietokrzyski | 5,340.10 mi (8,594.06 km) |
| Brent to Ostrzeszow | 5,194.98 mi (8,360.51 km) |
| Brent to Oswiecim | 5,292.54 mi (8,517.52 km) |
| Brent to Otwock | 5,290.76 mi (8,514.66 km) |
| Brent to Ozarow Mazowiecki | 5,270.38 mi (8,481.86 km) |
| Brent to Ozimek | 5,231.74 mi (8,419.67 km) |
| Brent to Ozorkow | 5,224.91 mi (8,408.69 km) |
| Brent to Pabianice | 5,240.00 mi (8,432.96 km) |
