| Shannon to Oakley (California) | 4,993.33 mi (8,035.99 km) |
| Shannon to Oakton (Virginia) | 3,296.74 mi (5,305.59 km) |
| Shannon to Oakville (Missouri) | 3,840.26 mi (6,180.30 km) |
| Shannon to Oatfield (Oregon) | 4,608.66 mi (7,416.92 km) |
| Shannon to Ocala (Florida) | 3,960.03 mi (6,373.05 km) |
| Shannon to Ocean Acres (New Jersey) | 3,134.94 mi (5,045.19 km) |
| Shannon to Ocean City (New Jersey) | 3,169.03 mi (5,100.06 km) |
| Shannon to Ocean Pines (Maryland) | 3,230.82 mi (5,199.50 km) |
| Shannon to Ocean Pointe (Hawaii) | 6,996.81 mi (11,260.28 km) |
| Shannon to Ocean Springs (Mississippi) | 4,172.18 mi (6,714.47 km) |
| Shannon to Oceanside (California) | 5,112.87 mi (8,228.38 km) |
| Shannon to Oceanside (New York) | 3,069.88 mi (4,940.49 km) |
| Shannon to Ocoee (Florida) | 3,964.32 mi (6,379.95 km) |
| Shannon to Oconomowoc (Wisconsin) | 3,554.47 mi (5,720.37 km) |
| Shannon to Odenton (Maryland) | 3,263.91 mi (5,252.76 km) |
