| Lake Barcroft to Orangevale (California) | 2,349.98 mi (3,781.93 km) |
| Lake Barcroft to Orchards (Washington) | 2,334.97 mi (3,757.77 km) |
| Lake Barcroft to Orcutt (California) | 2,385.18 mi (3,838.57 km) |
| Lake Barcroft to Oregon (Ohio) | 383.15 mi (616.62 km) |
| Lake Barcroft to Oregon (Wisconsin) | 697.27 mi (1,122.14 km) |
| Lake Barcroft to Oregon City (Oregon) | 2,340.08 mi (3,765.99 km) |
| Lake Barcroft to Orem (Utah) | 1,830.61 mi (2,946.09 km) |
| Lake Barcroft to Orinda (California) | 2,414.75 mi (3,886.17 km) |
| Lake Barcroft to Orland Park (Illinois) | 595.40 mi (958.20 km) |
| Lake Barcroft to Orlando (Florida) | 755.75 mi (1,216.26 km) |
| Lake Barcroft to Ormond Beach (Florida) | 697.35 mi (1,122.28 km) |
| Lake Barcroft to Oro Valley (Arizona) | 1,938.56 mi (3,119.81 km) |
| Lake Barcroft to Oroville (California) | 2,354.28 mi (3,788.85 km) |
| Lake Barcroft to Oshkosh (Wisconsin) | 689.42 mi (1,109.52 km) |
| Lake Barcroft to Oskaloosa (Iowa) | 834.59 mi (1,343.14 km) |
