| Rietberg to Oakley (California) | 5,543.57 mi (8,921.52 km) |
| Rietberg to Oakton (Virginia) | 4,010.92 mi (6,454.96 km) |
| Rietberg to Oakville (Missouri) | 4,524.52 mi (7,281.51 km) |
| Rietberg to Oatfield (Oregon) | 5,116.74 mi (8,234.60 km) |
| Rietberg to Ocala (Florida) | 4,685.48 mi (7,540.55 km) |
| Rietberg to Ocean Acres (New Jersey) | 3,852.26 mi (6,199.62 km) |
| Rietberg to Ocean City (New Jersey) | 3,887.01 mi (6,255.54 km) |
| Rietberg to Ocean Pines (Maryland) | 3,950.02 mi (6,356.94 km) |
| Rietberg to Ocean Pointe (Hawaii) | 7,319.01 mi (11,778.82 km) |
| Rietberg to Ocean Springs (Mississippi) | 4,883.94 mi (7,859.94 km) |
| Rietberg to Oceanside (California) | 5,708.65 mi (9,187.18 km) |
| Rietberg to Oceanside (New York) | 3,785.95 mi (6,092.90 km) |
| Rietberg to Ocoee (Florida) | 4,691.30 mi (7,549.92 km) |
| Rietberg to Oconomowoc (Wisconsin) | 4,225.21 mi (6,799.81 km) |
| Rietberg to Odenton (Maryland) | 3,978.75 mi (6,403.17 km) |
