| Fortuna Foothills to Olympia Heights (Florida) | 2,099.92 mi (3,379.50 km) |
| Fortuna Foothills to Omaha (Nebraska) | 1,170.66 mi (1,884.00 km) |
| Fortuna Foothills to On Top of the World Designated Place (Florida) | 1,912.56 mi (3,077.96 km) |
| Fortuna Foothills to Onalaska (Wisconsin) | 1,470.03 mi (2,365.78 km) |
| Fortuna Foothills to Oneida (New York) | 2,209.36 mi (3,555.62 km) |
| Fortuna Foothills to Oneonta (New York) | 2,235.58 mi (3,597.83 km) |
| Fortuna Foothills to Ontario (California) | 208.22 mi (335.10 km) |
| Fortuna Foothills to Ontario (Oregon) | 797.42 mi (1,283.32 km) |
| Fortuna Foothills to Opa-locka (Florida) | 2,100.40 mi (3,380.27 km) |
| Fortuna Foothills to Opelika (Alabama) | 1,682.71 mi (2,708.07 km) |
| Fortuna Foothills to Opelousas (Louisiana) | 1,319.17 mi (2,122.99 km) |
| Fortuna Foothills to Orange (California) | 213.05 mi (342.87 km) |
| Fortuna Foothills to Orange (Texas) | 1,227.73 mi (1,975.84 km) |
| Fortuna Foothills to Orange City (Florida) | 1,973.83 mi (3,176.57 km) |
| Fortuna Foothills to Orangeburg (South Carolina) | 1,933.63 mi (3,111.88 km) |
