| Annapolis to Orangevale (California) | 2,382.07 mi (3,833.57 km) |
| Annapolis to Orchards (Washington) | 2,362.68 mi (3,802.37 km) |
| Annapolis to Orcutt (California) | 2,418.98 mi (3,892.97 km) |
| Annapolis to Oregon (Ohio) | 409.14 mi (658.45 km) |
| Annapolis to Oregon (Wisconsin) | 724.83 mi (1,166.50 km) |
| Annapolis to Oregon City (Oregon) | 2,368.04 mi (3,810.99 km) |
| Annapolis to Orem (Utah) | 1,862.64 mi (2,997.63 km) |
| Annapolis to Orinda (California) | 2,447.12 mi (3,938.26 km) |
| Annapolis to Orland Park (Illinois) | 625.13 mi (1,006.05 km) |
| Annapolis to Orlando (Florida) | 776.04 mi (1,248.92 km) |
| Annapolis to Ormond Beach (Florida) | 717.84 mi (1,155.26 km) |
| Annapolis to Oro Valley (Arizona) | 1,974.02 mi (3,176.87 km) |
| Annapolis to Oroville (California) | 2,385.92 mi (3,839.76 km) |
| Annapolis to Oshkosh (Wisconsin) | 713.94 mi (1,148.97 km) |
| Annapolis to Oskaloosa (Iowa) | 866.02 mi (1,393.73 km) |
