| Indianapolis to Odessa (Texas) | 1,056.38 mi (1,700.08 km) |
| Indianapolis to Ogden (Utah) | 1,355.33 mi (2,181.20 km) |
| Indianapolis to Oildale (California) | 1,814.55 mi (2,920.24 km) |
| Indianapolis to Ojus (Florida) | 1,015.47 mi (1,634.24 km) |
| Indianapolis to Okemos (Michigan) | 221.45 mi (356.38 km) |
| Indianapolis to Oklahoma City (Oklahoma) | 688.98 mi (1,108.81 km) |
| Indianapolis to Okmulgee (Oklahoma) | 610.56 mi (982.60 km) |
| Indianapolis to Olathe (Kansas) | 467.49 mi (752.35 km) |
| Indianapolis to Old Jamestown (Missouri) | 230.53 mi (371.01 km) |
| Indianapolis to Oldsmar (Florida) | 834.18 mi (1,342.48 km) |
| Indianapolis to Olean (New York) | 432.81 mi (696.53 km) |
| Indianapolis to Olive Branch (Mississippi) | 389.82 mi (627.36 km) |
| Indianapolis to Olivehurst (California) | 1,878.03 mi (3,022.40 km) |
| Indianapolis to Olney (Maryland) | 485.80 mi (781.82 km) |
| Indianapolis to Olympia (Washington) | 1,892.58 mi (3,045.82 km) |
