| Sigmaringen to Oakley (California) | 5,768.87 mi (9,284.10 km) |
| Sigmaringen to Oakton (Virginia) | 4,151.23 mi (6,680.76 km) |
| Sigmaringen to Oakville (Missouri) | 4,692.20 mi (7,551.37 km) |
| Sigmaringen to Oatfield (Oregon) | 5,351.05 mi (8,611.69 km) |
| Sigmaringen to Ocala (Florida) | 4,807.61 mi (7,737.11 km) |
| Sigmaringen to Ocean Acres (New Jersey) | 3,988.58 mi (6,419.01 km) |
| Sigmaringen to Ocean City (New Jersey) | 4,022.41 mi (6,473.45 km) |
| Sigmaringen to Ocean Pines (Maryland) | 4,083.64 mi (6,571.98 km) |
| Sigmaringen to Ocean Pointe (Hawaii) | 7,576.89 mi (12,193.83 km) |
| Sigmaringen to Ocean Springs (Mississippi) | 5,026.89 mi (8,090.00 km) |
| Sigmaringen to Oceanside (California) | 5,920.59 mi (9,528.26 km) |
| Sigmaringen to Oceanside (New York) | 3,923.97 mi (6,315.02 km) |
| Sigmaringen to Ocoee (Florida) | 4,809.98 mi (7,740.92 km) |
| Sigmaringen to Oconomowoc (Wisconsin) | 4,401.51 mi (7,083.54 km) |
| Sigmaringen to Odenton (Maryland) | 4,118.25 mi (6,627.69 km) |
