| Madison to Opole | 4,630.46 mi (7,452.01 km) |
| Madison to Orzesze | 4,681.03 mi (7,533.39 km) |
| Madison to Osowa | 4,479.61 mi (7,209.24 km) |
| Madison to Ostroda | 4,558.37 mi (7,335.98 km) |
| Madison to Ostroleka | 4,636.72 mi (7,462.07 km) |
| Madison to Ostrow Mazowiecka | 4,659.39 mi (7,498.57 km) |
| Madison to Ostrow Wielkopolski | 4,582.45 mi (7,374.74 km) |
| Madison to Ostrowiec Swietokrzyski | 4,731.10 mi (7,613.96 km) |
| Madison to Ostrzeszow | 4,596.70 mi (7,397.68 km) |
| Madison to Oswiecim | 4,701.79 mi (7,566.80 km) |
| Madison to Otwock | 4,671.57 mi (7,518.17 km) |
| Madison to Ozarow Mazowiecki | 4,652.27 mi (7,487.11 km) |
| Madison to Ozimek | 4,639.44 mi (7,466.46 km) |
| Madison to Ozorkow | 4,615.59 mi (7,428.08 km) |
| Madison to Pabianice | 4,633.23 mi (7,456.47 km) |
