| Katy to Opole | 5,571.90 mi (8,967.11 km) |
| Katy to Orzesze | 5,622.07 mi (9,047.85 km) |
| Katy to Osowa | 5,436.20 mi (8,748.71 km) |
| Katy to Ostroda | 5,514.87 mi (8,875.32 km) |
| Katy to Ostroleka | 5,593.75 mi (9,002.27 km) |
| Katy to Ostrow Mazowiecka | 5,616.12 mi (9,038.28 km) |
| Katy to Ostrow Wielkopolski | 5,527.64 mi (8,895.87 km) |
| Katy to Ostrowiec Swietokrzyski | 5,680.57 mi (9,141.99 km) |
| Katy to Ostrzeszow | 5,541.19 mi (8,917.69 km) |
| Katy to Oswiecim | 5,643.39 mi (9,082.16 km) |
| Katy to Otwock | 5,624.94 mi (9,052.46 km) |
| Katy to Ozarow Mazowiecki | 5,605.15 mi (9,020.62 km) |
| Katy to Ozimek | 5,581.49 mi (8,982.54 km) |
| Katy to Ozorkow | 5,564.80 mi (8,955.67 km) |
| Katy to Pabianice | 5,581.44 mi (8,982.46 km) |
