| Ottawa to Troy (Michigan) | 303.79 mi (488.91 km) |
| Ottawa to Troy (Missouri) | 199.93 mi (321.76 km) |
| Ottawa to Troy (New York) | 782.14 mi (1,258.73 km) |
| Ottawa to Troy (Ohio) | 257.77 mi (414.84 km) |
| Ottawa to Truckee (California) | 1,648.03 mi (2,652.25 km) |
| Ottawa to Trujillo Alto (Puerto Rico) | 2,082.56 mi (3,351.56 km) |
| Ottawa to Trumbull Center (Connecticut) | 810.91 mi (1,305.04 km) |
| Ottawa to Trussville (Alabama) | 547.01 mi (880.33 km) |
| Ottawa to Tualatin (Oregon) | 1,714.63 mi (2,759.44 km) |
| Ottawa to Tuckahoe (Virginia) | 652.93 mi (1,050.79 km) |
| Ottawa to Tucker (Georgia) | 577.22 mi (928.94 km) |
| Ottawa to Tucson (Arizona) | 1,370.87 mi (2,206.20 km) |
| Ottawa to Tucson Estates (Arizona) | 1,381.96 mi (2,224.05 km) |
| Ottawa to Tucson Mountains (Arizona) | 1,375.63 mi (2,213.86 km) |
| Ottawa to Tukwila (Washington) | 1,689.71 mi (2,719.33 km) |
