| Glendale to Orangevale (California) | 612.91 mi (986.38 km) |
| Glendale to Orchards (Washington) | 998.34 mi (1,606.68 km) |
| Glendale to Orcutt (California) | 476.22 mi (766.40 km) |
| Glendale to Oregon (Ohio) | 1,662.62 mi (2,675.72 km) |
| Glendale to Oregon (Wisconsin) | 1,391.19 mi (2,238.90 km) |
| Glendale to Oregon City (Oregon) | 981.03 mi (1,578.81 km) |
| Glendale to Orem (Utah) | 465.16 mi (748.61 km) |
| Glendale to Orinda (California) | 631.68 mi (1,016.59 km) |
| Glendale to Orland Park (Illinois) | 1,438.55 mi (2,315.13 km) |
| Glendale to Orlando (Florida) | 1,855.65 mi (2,986.39 km) |
| Glendale to Ormond Beach (Florida) | 1,851.69 mi (2,980.02 km) |
| Glendale to Oro Valley (Arizona) | 108.11 mi (173.99 km) |
| Glendale to Oroville (California) | 659.47 mi (1,061.31 km) |
| Glendale to Oshkosh (Wisconsin) | 1,456.93 mi (2,344.70 km) |
| Glendale to Oskaloosa (Iowa) | 1,195.91 mi (1,924.63 km) |
