| Flower Mound to Odessa (Texas) | 315.14 mi (507.17 km) |
| Flower Mound to Ogden (Utah) | 992.72 mi (1,597.62 km) |
| Flower Mound to Oildale (California) | 1,260.19 mi (2,028.08 km) |
| Flower Mound to Ojus (Florida) | 1,128.84 mi (1,816.69 km) |
| Flower Mound to Okemos (Michigan) | 960.46 mi (1,545.71 km) |
| Flower Mound to Oklahoma City (Oklahoma) | 169.66 mi (273.04 km) |
| Flower Mound to Okmulgee (Oklahoma) | 189.07 mi (304.29 km) |
| Flower Mound to Olathe (Kansas) | 423.97 mi (682.31 km) |
| Flower Mound to Old Jamestown (Missouri) | 553.61 mi (890.94 km) |
| Flower Mound to Oldsmar (Florida) | 924.91 mi (1,488.49 km) |
| Flower Mound to Olean (New York) | 1,195.16 mi (1,923.42 km) |
| Flower Mound to Olive Branch (Mississippi) | 436.95 mi (703.20 km) |
| Flower Mound to Olivehurst (California) | 1,422.68 mi (2,289.59 km) |
| Flower Mound to Olney (Maryland) | 1,192.95 mi (1,919.87 km) |
| Flower Mound to Olympia (Washington) | 1,659.68 mi (2,671.00 km) |
