| Efringen-Kirchen to Orangevale (California) | 5,691.73 mi (9,159.96 km) |
| Efringen-Kirchen to Orchards (Washington) | 5,316.67 mi (8,556.35 km) |
| Efringen-Kirchen to Orcutt (California) | 5,891.84 mi (9,482.00 km) |
| Efringen-Kirchen to Oregon (Ohio) | 4,225.35 mi (6,800.04 km) |
| Efringen-Kirchen to Oregon (Wisconsin) | 4,398.73 mi (7,079.06 km) |
| Efringen-Kirchen to Oregon City (Oregon) | 5,338.62 mi (8,591.68 km) |
| Efringen-Kirchen to Orem (Utah) | 5,312.31 mi (8,549.34 km) |
| Efringen-Kirchen to Orinda (California) | 5,766.49 mi (9,280.28 km) |
| Efringen-Kirchen to Orland Park (Illinois) | 4,400.91 mi (7,082.58 km) |
| Efringen-Kirchen to Orlando (Florida) | 4,744.58 mi (7,635.66 km) |
| Efringen-Kirchen to Ormond Beach (Florida) | 4,695.16 mi (7,556.12 km) |
| Efringen-Kirchen to Oro Valley (Arizona) | 5,723.93 mi (9,211.78 km) |
| Efringen-Kirchen to Oroville (California) | 5,653.84 mi (9,098.97 km) |
| Efringen-Kirchen to Oshkosh (Wisconsin) | 4,317.49 mi (6,948.33 km) |
| Efringen-Kirchen to Oskaloosa (Iowa) | 4,597.67 mi (7,399.24 km) |
