| Guarda to Opole | 1,397.73 mi (2,249.43 km) |
| Guarda to Orzesze | 1,420.07 mi (2,285.38 km) |
| Guarda to Osowa | 1,525.63 mi (2,455.26 km) |
| Guarda to Ostroda | 1,557.54 mi (2,506.62 km) |
| Guarda to Ostroleka | 1,601.35 mi (2,577.13 km) |
| Guarda to Ostrow Mazowiecka | 1,607.89 mi (2,587.64 km) |
| Guarda to Ostrow Wielkopolski | 1,417.98 mi (2,282.02 km) |
| Guarda to Ostrowiec Swietokrzyski | 1,547.21 mi (2,490.00 km) |
| Guarda to Ostrzeszow | 1,416.47 mi (2,279.59 km) |
| Guarda to Oswiecim | 1,437.70 mi (2,313.75 km) |
| Guarda to Otwock | 1,566.88 mi (2,521.65 km) |
| Guarda to Ozarow Mazowiecki | 1,550.59 mi (2,495.44 km) |
| Guarda to Ozimek | 1,409.39 mi (2,268.19 km) |
| Guarda to Ozorkow | 1,484.28 mi (2,388.72 km) |
| Guarda to Pabianice | 1,480.37 mi (2,382.43 km) |
