| Basildon to Opole | 757.26 mi (1,218.69 km) |
| Basildon to Orzesze | 800.26 mi (1,287.89 km) |
| Basildon to Osowa | 770.69 mi (1,240.30 km) |
| Basildon to Ostroda | 826.90 mi (1,330.77 km) |
| Basildon to Ostroleka | 892.69 mi (1,436.65 km) |
| Basildon to Ostrow Mazowiecka | 907.38 mi (1,460.29 km) |
| Basildon to Ostrow Wielkopolski | 741.63 mi (1,193.54 km) |
| Basildon to Ostrowiec Swietokrzyski | 902.18 mi (1,451.92 km) |
| Basildon to Ostrzeszow | 748.60 mi (1,204.75 km) |
| Basildon to Oswiecim | 822.42 mi (1,323.56 km) |
| Basildon to Otwock | 884.53 mi (1,423.52 km) |
| Basildon to Ozarow Mazowiecki | 864.19 mi (1,390.77 km) |
| Basildon to Ozimek | 769.18 mi (1,237.87 km) |
| Basildon to Ozorkow | 801.68 mi (1,290.18 km) |
| Basildon to Pabianice | 808.33 mi (1,300.88 km) |
