| Annapolis to Odessa (Texas) | 1,528.92 mi (2,460.56 km) |
| Annapolis to Ogden (Utah) | 1,867.77 mi (3,005.89 km) |
| Annapolis to Oildale (California) | 2,331.96 mi (3,752.93 km) |
| Annapolis to Ojus (Florida) | 923.88 mi (1,486.83 km) |
| Annapolis to Okemos (Michigan) | 487.03 mi (783.81 km) |
| Annapolis to Oklahoma City (Oklahoma) | 1,178.18 mi (1,896.09 km) |
| Annapolis to Okmulgee (Oklahoma) | 1,094.51 mi (1,761.45 km) |
| Annapolis to Olathe (Kansas) | 982.82 mi (1,581.69 km) |
| Annapolis to Old Jamestown (Missouri) | 740.27 mi (1,191.34 km) |
| Annapolis to Oldsmar (Florida) | 833.36 mi (1,341.16 km) |
| Annapolis to Olean (New York) | 237.59 mi (382.37 km) |
| Annapolis to Olive Branch (Mississippi) | 785.99 mi (1,264.93 km) |
| Annapolis to Olivehurst (California) | 2,392.68 mi (3,850.64 km) |
| Annapolis to Olney (Maryland) | 32.75 mi (52.70 km) |
| Annapolis to Olympia (Washington) | 2,372.64 mi (3,818.39 km) |
