| Gig Harbor to Orangevale (California) | 601.46 mi (967.95 km) |
| Gig Harbor to Orchards (Washington) | 113.78 mi (183.12 km) |
| Gig Harbor to Orcutt (California) | 868.63 mi (1,397.93 km) |
| Gig Harbor to Oregon (Ohio) | 1,948.28 mi (3,135.45 km) |
| Gig Harbor to Oregon (Wisconsin) | 1,634.18 mi (2,629.96 km) |
| Gig Harbor to Oregon City (Oregon) | 137.73 mi (221.66 km) |
| Gig Harbor to Orem (Utah) | 727.82 mi (1,171.31 km) |
| Gig Harbor to Orinda (California) | 653.58 mi (1,051.83 km) |
| Gig Harbor to Orland Park (Illinois) | 1,742.25 mi (2,803.88 km) |
| Gig Harbor to Orlando (Florida) | 2,557.82 mi (4,116.42 km) |
| Gig Harbor to Ormond Beach (Florida) | 2,530.78 mi (4,072.90 km) |
| Gig Harbor to Oro Valley (Arizona) | 1,197.62 mi (1,927.39 km) |
| Gig Harbor to Oroville (California) | 543.83 mi (875.21 km) |
| Gig Harbor to Oshkosh (Wisconsin) | 1,645.47 mi (2,648.13 km) |
| Gig Harbor to Oskaloosa (Iowa) | 1,528.12 mi (2,459.27 km) |
