| Halmstad to Orangevale (California) | 5,324.16 mi (8,568.42 km) |
| Halmstad to Orchards (Washington) | 4,909.34 mi (7,900.82 km) |
| Halmstad to Orcutt (California) | 5,547.48 mi (8,927.81 km) |
| Halmstad to Oregon (Ohio) | 4,098.13 mi (6,595.30 km) |
| Halmstad to Oregon (Wisconsin) | 4,219.63 mi (6,790.84 km) |
| Halmstad to Oregon City (Oregon) | 4,932.47 mi (7,938.04 km) |
| Halmstad to Orem (Utah) | 5,000.86 mi (8,048.11 km) |
| Halmstad to Orinda (California) | 5,396.09 mi (8,684.18 km) |
| Halmstad to Orland Park (Illinois) | 4,243.53 mi (6,829.31 km) |
| Halmstad to Orlando (Florida) | 4,747.43 mi (7,640.25 km) |
| Halmstad to Ormond Beach (Florida) | 4,693.20 mi (7,552.98 km) |
| Halmstad to Oro Valley (Arizona) | 5,462.65 mi (8,791.28 km) |
| Halmstad to Oroville (California) | 5,280.29 mi (8,497.81 km) |
| Halmstad to Oshkosh (Wisconsin) | 4,134.39 mi (6,653.66 km) |
| Halmstad to Oskaloosa (Iowa) | 4,410.01 mi (7,097.22 km) |
