| Tryavna to Orangevale (California) | 6,428.47 mi (10,345.62 km) |
| Tryavna to Orchards (Washington) | 6,010.66 mi (9,673.22 km) |
| Tryavna to Orcutt (California) | 6,651.37 mi (10,704.34 km) |
| Tryavna to Oregon (Ohio) | 5,117.79 mi (8,236.29 km) |
| Tryavna to Oregon (Wisconsin) | 5,269.37 mi (8,480.22 km) |
| Tryavna to Oregon City (Oregon) | 6,033.93 mi (9,710.67 km) |
| Tryavna to Orem (Utah) | 6,100.25 mi (9,817.41 km) |
| Tryavna to Orinda (California) | 6,500.31 mi (10,461.24 km) |
| Tryavna to Orland Park (Illinois) | 5,281.66 mi (8,500.01 km) |
| Tryavna to Orlando (Florida) | 5,671.28 mi (9,127.05 km) |
| Tryavna to Ormond Beach (Florida) | 5,621.18 mi (9,046.41 km) |
| Tryavna to Oro Valley (Arizona) | 6,550.86 mi (10,542.59 km) |
| Tryavna to Oroville (California) | 6,384.44 mi (10,274.76 km) |
| Tryavna to Oshkosh (Wisconsin) | 5,185.82 mi (8,345.77 km) |
| Tryavna to Oskaloosa (Iowa) | 5,464.85 mi (8,794.83 km) |
