| Fairborn to Olympia Heights (Florida) | 995.47 mi (1,602.06 km) |
| Fairborn to Omaha (Nebraska) | 639.92 mi (1,029.86 km) |
| Fairborn to On Top of the World Designated Place (Florida) | 745.41 mi (1,199.62 km) |
| Fairborn to Onalaska (Wisconsin) | 465.56 mi (749.24 km) |
| Fairborn to Oneida (New York) | 487.70 mi (784.87 km) |
| Fairborn to Oneonta (New York) | 499.93 mi (804.55 km) |
| Fairborn to Ontario (California) | 1,886.41 mi (3,035.88 km) |
| Fairborn to Ontario (Oregon) | 1,708.21 mi (2,749.10 km) |
| Fairborn to Opa-locka (Florida) | 984.63 mi (1,584.61 km) |
| Fairborn to Opelika (Alabama) | 499.15 mi (803.30 km) |
| Fairborn to Opelousas (Louisiana) | 785.75 mi (1,264.54 km) |
| Fairborn to Orange (California) | 1,904.00 mi (3,064.19 km) |
| Fairborn to Orange (Texas) | 866.04 mi (1,393.76 km) |
| Fairborn to Orange City (Florida) | 766.54 mi (1,233.63 km) |
| Fairborn to Orangeburg (South Carolina) | 469.29 mi (755.24 km) |
