| Morfelden-Walldorf to Oakley (California) | 5,646.15 mi (9,086.61 km) |
| Morfelden-Walldorf to Oakton (Virginia) | 4,068.21 mi (6,547.15 km) |
| Morfelden-Walldorf to Oakville (Missouri) | 4,596.14 mi (7,396.77 km) |
| Morfelden-Walldorf to Oatfield (Oregon) | 5,224.35 mi (8,407.77 km) |
| Morfelden-Walldorf to Ocala (Florida) | 4,733.87 mi (7,618.42 km) |
| Morfelden-Walldorf to Ocean Acres (New Jersey) | 3,907.43 mi (6,288.40 km) |
| Morfelden-Walldorf to Ocean City (New Jersey) | 3,941.72 mi (6,343.59 km) |
| Morfelden-Walldorf to Ocean Pines (Maryland) | 4,003.86 mi (6,443.58 km) |
| Morfelden-Walldorf to Ocean Pointe (Hawaii) | 7,441.63 mi (11,976.14 km) |
| Morfelden-Walldorf to Ocean Springs (Mississippi) | 4,942.98 mi (7,954.95 km) |
| Morfelden-Walldorf to Oceanside (California) | 5,803.95 mi (9,340.56 km) |
| Morfelden-Walldorf to Oceanside (New York) | 3,841.95 mi (6,183.02 km) |
| Morfelden-Walldorf to Ocoee (Florida) | 4,737.95 mi (7,624.99 km) |
| Morfelden-Walldorf to Oconomowoc (Wisconsin) | 4,301.21 mi (6,922.13 km) |
| Morfelden-Walldorf to Odenton (Maryland) | 4,035.61 mi (6,494.68 km) |
