| Gland to Odessa (Texas) | 5,438.48 mi (8,752.39 km) |
| Gland to Ogden (Utah) | 5,291.03 mi (8,515.09 km) |
| Gland to Oildale (California) | 5,840.38 mi (9,399.19 km) |
| Gland to Ojus (Florida) | 4,778.94 mi (7,690.96 km) |
| Gland to Okemos (Michigan) | 4,212.57 mi (6,779.48 km) |
| Gland to Oklahoma City (Oklahoma) | 5,067.82 mi (8,155.87 km) |
| Gland to Okmulgee (Oklahoma) | 5,001.12 mi (8,048.52 km) |
| Gland to Olathe (Kansas) | 4,796.43 mi (7,719.11 km) |
| Gland to Old Jamestown (Missouri) | 4,619.43 mi (7,434.25 km) |
| Gland to Oldsmar (Florida) | 4,794.77 mi (7,716.44 km) |
| Gland to Olean (New York) | 3,994.24 mi (6,428.11 km) |
| Gland to Olive Branch (Mississippi) | 4,782.13 mi (7,696.09 km) |
| Gland to Olivehurst (California) | 5,708.35 mi (9,186.71 km) |
| Gland to Olney (Maryland) | 4,056.72 mi (6,528.65 km) |
| Gland to Olympia (Washington) | 5,285.56 mi (8,506.29 km) |
