| South Bend to Opole | 4,597.30 mi (7,398.64 km) |
| South Bend to Orzesze | 4,647.64 mi (7,479.66 km) |
| South Bend to Osowa | 4,457.53 mi (7,173.70 km) |
| South Bend to Ostroda | 4,536.23 mi (7,300.36 km) |
| South Bend to Ostroleka | 4,615.05 mi (7,427.20 km) |
| South Bend to Ostrow Mazowiecka | 4,637.48 mi (7,463.30 km) |
| South Bend to Ostrow Wielkopolski | 4,551.80 mi (7,325.41 km) |
| South Bend to Ostrowiec Swietokrzyski | 4,703.58 mi (7,569.67 km) |
| South Bend to Ostrzeszow | 4,565.58 mi (7,347.59 km) |
| South Bend to Oswiecim | 4,668.78 mi (7,513.68 km) |
| South Bend to Otwock | 4,646.97 mi (7,478.57 km) |
| South Bend to Ozarow Mazowiecki | 4,627.28 mi (7,446.89 km) |
| South Bend to Ozimek | 4,606.69 mi (7,413.75 km) |
| South Bend to Ozorkow | 4,587.82 mi (7,383.39 km) |
| South Bend to Pabianice | 4,604.75 mi (7,410.62 km) |
