| Sierning to Odessa (Texas) | 5,670.01 mi (9,125.00 km) |
| Sierning to Ogden (Utah) | 5,451.15 mi (8,772.77 km) |
| Sierning to Oildale (California) | 5,991.76 mi (9,642.81 km) |
| Sierning to Ojus (Florida) | 5,100.55 mi (8,208.54 km) |
| Sierning to Okemos (Michigan) | 4,459.34 mi (7,176.61 km) |
| Sierning to Oklahoma City (Oklahoma) | 5,303.36 mi (8,534.93 km) |
| Sierning to Okmulgee (Oklahoma) | 5,241.24 mi (8,434.96 km) |
| Sierning to Olathe (Kansas) | 5,027.63 mi (8,091.18 km) |
| Sierning to Old Jamestown (Missouri) | 4,865.36 mi (7,830.05 km) |
| Sierning to Oldsmar (Florida) | 5,103.12 mi (8,212.68 km) |
| Sierning to Olean (New York) | 4,260.48 mi (6,856.58 km) |
| Sierning to Olive Branch (Mississippi) | 5,044.81 mi (8,118.84 km) |
| Sierning to Olivehurst (California) | 5,836.48 mi (9,392.90 km) |
| Sierning to Olney (Maryland) | 4,339.58 mi (6,983.88 km) |
| Sierning to Olympia (Washington) | 5,381.08 mi (8,660.01 km) |
