| Shannon to Orangevale (California) | 4,939.37 mi (7,949.15 km) |
| Shannon to Orchards (Washington) | 4,591.59 mi (7,389.44 km) |
| Shannon to Orcutt (California) | 5,126.80 mi (8,250.79 km) |
| Shannon to Oregon (Ohio) | 3,421.11 mi (5,505.75 km) |
| Shannon to Oregon (Wisconsin) | 3,596.64 mi (5,788.23 km) |
| Shannon to Oregon City (Oregon) | 4,612.50 mi (7,423.11 km) |
| Shannon to Orem (Utah) | 4,537.44 mi (7,302.31 km) |
| Shannon to Orinda (California) | 5,015.03 mi (8,070.91 km) |
| Shannon to Orland Park (Illinois) | 3,597.22 mi (5,789.17 km) |
| Shannon to Orlando (Florida) | 3,961.28 mi (6,375.07 km) |
| Shannon to Ormond Beach (Florida) | 3,910.32 mi (6,293.06 km) |
| Shannon to Oro Valley (Arizona) | 4,931.87 mi (7,937.07 km) |
| Shannon to Oroville (California) | 4,904.98 mi (7,893.80 km) |
| Shannon to Oshkosh (Wisconsin) | 3,515.97 mi (5,658.41 km) |
| Shannon to Oskaloosa (Iowa) | 3,796.11 mi (6,109.25 km) |
