| South Bend to Orangeburg (South Carolina) | 637.81 mi (1,026.45 km) |
| South Bend to Orangevale (California) | 1,843.76 mi (2,967.25 km) |
| South Bend to Orchards (Washington) | 1,817.02 mi (2,924.21 km) |
| South Bend to Orcutt (California) | 1,897.86 mi (3,054.31 km) |
| South Bend to Oregon (Ohio) | 146.46 mi (235.71 km) |
| South Bend to Oregon (Wisconsin) | 181.25 mi (291.69 km) |
| South Bend to Oregon City (Oregon) | 1,821.97 mi (2,932.18 km) |
| South Bend to Orem (Utah) | 1,324.89 mi (2,132.21 km) |
| South Bend to Orinda (California) | 1,910.73 mi (3,075.02 km) |
| South Bend to Orland Park (Illinois) | 82.35 mi (132.54 km) |
| South Bend to Orlando (Florida) | 953.23 mi (1,534.07 km) |
| South Bend to Ormond Beach (Florida) | 902.85 mi (1,453.00 km) |
| South Bend to Oro Valley (Arizona) | 1,497.93 mi (2,410.69 km) |
| South Bend to Oroville (California) | 1,844.99 mi (2,969.23 km) |
| South Bend to Oshkosh (Wisconsin) | 199.37 mi (320.86 km) |
