| Sofia to Indianola (Iowa) | 5,426.80 mi (8,733.59 km) |
| Sofia to Indio (California) | 6,569.48 mi (10,572.56 km) |
| Sofia to Inglewood (California) | 6,612.63 mi (10,642.00 km) |
| Sofia to Inkster (Michigan) | 5,009.54 mi (8,062.08 km) |
| Sofia to Inver Grove Heights (Minnesota) | 5,232.89 mi (8,421.52 km) |
| Sofia to Inwood (New York) | 4,706.20 mi (7,573.90 km) |
| Sofia to Iona (Florida) | 5,704.90 mi (9,181.16 km) |
| Sofia to Ionia (Michigan) | 5,043.01 mi (8,115.94 km) |
| Sofia to Iowa City (Iowa) | 5,340.69 mi (8,595.01 km) |
| Sofia to Irmo (South Carolina) | 5,309.46 mi (8,544.74 km) |
| Sofia to Irondale (Alabama) | 5,560.86 mi (8,949.34 km) |
| Sofia to Ironton (Ohio) | 5,161.05 mi (8,305.91 km) |
| Sofia to Irvine (California) | 6,614.67 mi (10,645.28 km) |
| Sofia to Irving (Texas) | 5,994.70 mi (9,647.53 km) |
| Sofia to Isabela (Puerto Rico) | 5,377.21 mi (8,653.79 km) |
