| Tarpon Springs to Orangeburg (South Carolina) | 385.92 mi (621.08 km) |
| Tarpon Springs to Orangevale (California) | 2,315.07 mi (3,725.75 km) |
| Tarpon Springs to Orchards (Washington) | 2,473.93 mi (3,981.41 km) |
| Tarpon Springs to Orcutt (California) | 2,252.77 mi (3,625.49 km) |
| Tarpon Springs to Oregon (Ohio) | 933.74 mi (1,502.70 km) |
| Tarpon Springs to Oregon (Wisconsin) | 1,085.86 mi (1,747.53 km) |
| Tarpon Springs to Oregon City (Oregon) | 2,470.56 mi (3,975.98 km) |
| Tarpon Springs to Orem (Utah) | 1,842.37 mi (2,965.01 km) |
| Tarpon Springs to Orinda (California) | 2,361.31 mi (3,800.16 km) |
| Tarpon Springs to Orland Park (Illinois) | 973.27 mi (1,566.32 km) |
| Tarpon Springs to Orlando (Florida) | 89.61 mi (144.21 km) |
| Tarpon Springs to Ormond Beach (Florida) | 128.19 mi (206.29 km) |
| Tarpon Springs to Oro Valley (Arizona) | 1,703.94 mi (2,742.23 km) |
| Tarpon Springs to Oroville (California) | 2,340.19 mi (3,766.18 km) |
| Tarpon Springs to Oshkosh (Wisconsin) | 1,142.78 mi (1,839.12 km) |
