| Butte to Opole | 5,142.33 mi (8,275.78 km) |
| Butte to Orzesze | 5,191.85 mi (8,355.48 km) |
| Butte to Osowa | 4,937.86 mi (7,946.72 km) |
| Butte to Ostroda | 5,013.04 mi (8,067.71 km) |
| Butte to Ostroleka | 5,085.02 mi (8,183.56 km) |
| Butte to Ostrow Mazowiecka | 5,107.98 mi (8,220.49 km) |
| Butte to Ostrow Wielkopolski | 5,082.85 mi (8,180.05 km) |
| Butte to Ostrowiec Swietokrzyski | 5,207.41 mi (8,380.51 km) |
| Butte to Ostrzeszow | 5,099.03 mi (8,206.10 km) |
| Butte to Oswiecim | 5,209.60 mi (8,384.05 km) |
| Butte to Otwock | 5,134.53 mi (8,263.23 km) |
| Butte to Ozarow Mazowiecki | 5,118.30 mi (8,237.11 km) |
| Butte to Ozimek | 5,148.66 mi (8,285.97 km) |
| Butte to Ozorkow | 5,098.66 mi (8,205.49 km) |
| Butte to Pabianice | 5,119.40 mi (8,238.87 km) |
