| Santa Coloma de Farnes to Orangevale (California) | 5,849.58 mi (9,413.99 km) |
| Santa Coloma de Farnes to Orchards (Washington) | 5,511.31 mi (8,869.59 km) |
| Santa Coloma de Farnes to Orcutt (California) | 6,028.52 mi (9,701.97 km) |
| Santa Coloma de Farnes to Oregon (Ohio) | 4,230.13 mi (6,807.73 km) |
| Santa Coloma de Farnes to Oregon (Wisconsin) | 4,437.07 mi (7,140.78 km) |
| Santa Coloma de Farnes to Oregon City (Oregon) | 5,532.02 mi (8,902.92 km) |
| Santa Coloma de Farnes to Orem (Utah) | 5,432.24 mi (8,742.35 km) |
| Santa Coloma de Farnes to Orinda (California) | 5,925.54 mi (9,536.23 km) |
| Santa Coloma de Farnes to Orland Park (Illinois) | 4,423.57 mi (7,119.05 km) |
| Santa Coloma de Farnes to Orlando (Florida) | 4,647.01 mi (7,478.64 km) |
| Santa Coloma de Farnes to Ormond Beach (Florida) | 4,601.87 mi (7,405.99 km) |
| Santa Coloma de Farnes to Oro Valley (Arizona) | 5,799.27 mi (9,333.03 km) |
| Santa Coloma de Farnes to Oroville (California) | 5,816.96 mi (9,361.49 km) |
| Santa Coloma de Farnes to Oshkosh (Wisconsin) | 4,360.40 mi (7,017.39 km) |
| Santa Coloma de Farnes to Oskaloosa (Iowa) | 4,638.26 mi (7,464.56 km) |
