| Peoria to Opole | 4,759.93 mi (7,660.37 km) |
| Peoria to Orzesze | 4,810.40 mi (7,741.58 km) |
| Peoria to Osowa | 4,614.54 mi (7,426.38 km) |
| Peoria to Ostroda | 4,693.29 mi (7,553.13 km) |
| Peoria to Ostroleka | 4,771.89 mi (7,679.61 km) |
| Peoria to Ostrow Mazowiecka | 4,794.46 mi (7,715.93 km) |
| Peoria to Ostrow Wielkopolski | 4,713.20 mi (7,585.16 km) |
| Peoria to Ostrowiec Swietokrzyski | 4,863.46 mi (7,826.99 km) |
| Peoria to Ostrzeszow | 4,727.21 mi (7,607.71 km) |
| Peoria to Oswiecim | 4,831.36 mi (7,775.32 km) |
| Peoria to Otwock | 4,805.35 mi (7,733.46 km) |
| Peoria to Ozarow Mazowiecki | 4,785.86 mi (7,702.10 km) |
| Peoria to Ozimek | 4,769.12 mi (7,675.17 km) |
| Peoria to Ozorkow | 4,747.80 mi (7,640.84 km) |
| Peoria to Pabianice | 4,765.09 mi (7,668.67 km) |
