| Indianapolis to Oswego (Illinois) | 174.67 mi (281.10 km) |
| Indianapolis to Oswego (New York) | 558.71 mi (899.15 km) |
| Indianapolis to Otsego (Minnesota) | 536.85 mi (863.98 km) |
| Indianapolis to Ottawa (Illinois) | 177.99 mi (286.44 km) |
| Indianapolis to Ottawa (Kansas) | 494.78 mi (796.28 km) |
| Indianapolis to Ottumwa (Iowa) | 340.96 mi (548.72 km) |
| Indianapolis to Overland (Missouri) | 237.98 mi (383.00 km) |
| Indianapolis to Overland Park (Kansas) | 460.41 mi (740.95 km) |
| Indianapolis to Overlea (Maryland) | 513.35 mi (826.15 km) |
| Indianapolis to Oviedo (Florida) | 818.45 mi (1,317.17 km) |
| Indianapolis to Owasso (Oklahoma) | 579.19 mi (932.11 km) |
| Indianapolis to Owatonna (Minnesota) | 470.31 mi (756.89 km) |
| Indianapolis to Owensboro (Kentucky) | 149.03 mi (239.84 km) |
| Indianapolis to Owings Mills (Maryland) | 498.46 mi (802.20 km) |
| Indianapolis to Owosso (Michigan) | 244.67 mi (393.77 km) |
