| Perris to Opole | 5,993.94 mi (9,646.32 km) |
| Perris to Orzesze | 6,043.91 mi (9,726.73 km) |
| Perris to Osowa | 5,796.49 mi (9,328.54 km) |
| Perris to Ostroda | 5,872.48 mi (9,450.84 km) |
| Perris to Ostroleka | 5,945.58 mi (9,568.48 km) |
| Perris to Ostrow Mazowiecka | 5,968.60 mi (9,605.53 km) |
| Perris to Ostrow Wielkopolski | 5,936.04 mi (9,553.13 km) |
| Perris to Ostrowiec Swietokrzyski | 6,064.86 mi (9,760.45 km) |
| Perris to Ostrzeszow | 5,952.00 mi (9,578.81 km) |
| Perris to Oswiecim | 6,062.26 mi (9,756.26 km) |
| Perris to Otwock | 5,993.46 mi (9,645.54 km) |
| Perris to Ozarow Mazowiecki | 5,976.74 mi (9,618.64 km) |
| Perris to Ozimek | 6,000.76 mi (9,657.29 km) |
| Perris to Ozorkow | 5,954.61 mi (9,583.02 km) |
| Perris to Pabianice | 5,974.99 mi (9,615.82 km) |
