| Garland to Odessa (Texas) | 340.84 mi (548.53 km) |
| Garland to Ogden (Utah) | 1,019.96 mi (1,641.47 km) |
| Garland to Oildale (California) | 1,289.49 mi (2,075.24 km) |
| Garland to Ojus (Florida) | 1,099.57 mi (1,769.59 km) |
| Garland to Okemos (Michigan) | 948.24 mi (1,526.05 km) |
| Garland to Oklahoma City (Oklahoma) | 183.78 mi (295.76 km) |
| Garland to Okmulgee (Oklahoma) | 190.15 mi (306.02 km) |
| Garland to Olathe (Kansas) | 424.94 mi (683.88 km) |
| Garland to Old Jamestown (Missouri) | 541.96 mi (872.21 km) |
| Garland to Oldsmar (Florida) | 895.56 mi (1,441.27 km) |
| Garland to Olean (New York) | 1,178.05 mi (1,895.89 km) |
| Garland to Olive Branch (Mississippi) | 413.76 mi (665.89 km) |
| Garland to Olivehurst (California) | 1,451.81 mi (2,336.46 km) |
| Garland to Olney (Maryland) | 1,171.76 mi (1,885.77 km) |
| Garland to Olympia (Washington) | 1,686.02 mi (2,713.39 km) |
