| Billericay to Opole | 760.22 mi (1,223.45 km) |
| Billericay to Orzesze | 803.33 mi (1,292.84 km) |
| Billericay to Osowa | 772.32 mi (1,242.92 km) |
| Billericay to Ostroda | 828.82 mi (1,333.86 km) |
| Billericay to Ostroleka | 894.82 mi (1,440.07 km) |
| Billericay to Ostrow Mazowiecka | 909.59 mi (1,463.84 km) |
| Billericay to Ostrow Wielkopolski | 744.27 mi (1,197.79 km) |
| Billericay to Ostrowiec Swietokrzyski | 904.93 mi (1,456.35 km) |
| Billericay to Ostrzeszow | 751.31 mi (1,209.12 km) |
| Billericay to Oswiecim | 825.50 mi (1,328.52 km) |
| Billericay to Otwock | 886.95 mi (1,427.41 km) |
| Billericay to Ozarow Mazowiecki | 866.58 mi (1,394.63 km) |
| Billericay to Ozimek | 772.12 mi (1,242.61 km) |
| Billericay to Ozorkow | 804.18 mi (1,294.21 km) |
| Billericay to Pabianice | 810.93 mi (1,305.07 km) |
