| Efringen-Kirchen to Odessa (Texas) | 5,439.18 mi (8,753.51 km) |
| Efringen-Kirchen to Ogden (Utah) | 5,269.57 mi (8,480.55 km) |
| Efringen-Kirchen to Oildale (California) | 5,816.91 mi (9,361.41 km) |
| Efringen-Kirchen to Ojus (Florida) | 4,813.32 mi (7,746.29 km) |
| Efringen-Kirchen to Okemos (Michigan) | 4,217.49 mi (6,787.39 km) |
| Efringen-Kirchen to Oklahoma City (Oklahoma) | 5,069.58 mi (8,158.70 km) |
| Efringen-Kirchen to Okmulgee (Oklahoma) | 5,004.37 mi (8,053.76 km) |
| Efringen-Kirchen to Olathe (Kansas) | 4,796.52 mi (7,719.26 km) |
| Efringen-Kirchen to Old Jamestown (Missouri) | 4,624.39 mi (7,442.23 km) |
| Efringen-Kirchen to Oldsmar (Florida) | 4,823.45 mi (7,762.60 km) |
| Efringen-Kirchen to Olean (New York) | 4,005.93 mi (6,446.92 km) |
| Efringen-Kirchen to Olive Branch (Mississippi) | 4,793.12 mi (7,713.79 km) |
| Efringen-Kirchen to Olivehurst (California) | 5,678.32 mi (9,138.37 km) |
| Efringen-Kirchen to Olney (Maryland) | 4,074.71 mi (6,557.61 km) |
| Efringen-Kirchen to Olympia (Washington) | 5,246.54 mi (8,443.49 km) |
