| Lac to Orangevale (California) | 6,367.50 mi (10,247.50 km) |
| Lac to Orchards (Washington) | 5,970.29 mi (9,608.26 km) |
| Lac to Orcutt (California) | 6,578.50 mi (10,587.07 km) |
| Lac to Oregon (Ohio) | 4,951.63 mi (7,968.89 km) |
| Lac to Oregon (Wisconsin) | 5,122.20 mi (8,243.38 km) |
| Lac to Oregon City (Oregon) | 5,992.99 mi (9,644.78 km) |
| Lac to Orem (Utah) | 6,009.90 mi (9,672.00 km) |
| Lac to Orinda (California) | 6,441.08 mi (10,365.91 km) |
| Lac to Orland Park (Illinois) | 5,126.12 mi (8,249.69 km) |
| Lac to Orlando (Florida) | 5,458.13 mi (8,784.01 km) |
| Lac to Ormond Beach (Florida) | 5,409.83 mi (8,706.29 km) |
| Lac to Oro Valley (Arizona) | 6,436.72 mi (10,358.90 km) |
| Lac to Oroville (California) | 6,326.60 mi (10,181.68 km) |
| Lac to Oshkosh (Wisconsin) | 5,040.43 mi (8,111.79 km) |
| Lac to Oskaloosa (Iowa) | 5,320.56 mi (8,562.62 km) |
