| Dyer to Orangevale (California) | 1,781.08 mi (2,866.37 km) |
| Dyer to Orchards (Washington) | 1,761.82 mi (2,835.37 km) |
| Dyer to Orcutt (California) | 1,833.20 mi (2,950.25 km) |
| Dyer to Oregon (Ohio) | 210.98 mi (339.53 km) |
| Dyer to Oregon (Wisconsin) | 137.79 mi (221.75 km) |
| Dyer to Oregon City (Oregon) | 1,766.30 mi (2,842.58 km) |
| Dyer to Orem (Utah) | 1,261.96 mi (2,030.93 km) |
| Dyer to Orinda (California) | 1,847.69 mi (2,973.57 km) |
| Dyer to Orland Park (Illinois) | 19.76 mi (31.80 km) |
| Dyer to Orlando (Florida) | 964.39 mi (1,552.03 km) |
| Dyer to Ormond Beach (Florida) | 916.19 mi (1,474.46 km) |
| Dyer to Oro Valley (Arizona) | 1,433.17 mi (2,306.46 km) |
| Dyer to Oroville (California) | 1,782.96 mi (2,869.40 km) |
| Dyer to Oshkosh (Wisconsin) | 182.45 mi (293.62 km) |
| Dyer to Oskaloosa (Iowa) | 266.31 mi (428.58 km) |
