| Ottawa to Town and Country (Missouri) | 207.53 mi (333.99 km) |
| Ottawa to Towson (Maryland) | 656.08 mi (1,055.85 km) |
| Ottawa to Tracy (California) | 1,745.92 mi (2,809.79 km) |
| Ottawa to Traverse City (Michigan) | 285.64 mi (459.70 km) |
| Ottawa to Travilah (Maryland) | 630.77 mi (1,015.12 km) |
| Ottawa to Trenton (Michigan) | 295.34 mi (475.30 km) |
| Ottawa to Trenton (New Jersey) | 738.92 mi (1,189.18 km) |
| Ottawa to Trenton (Ohio) | 263.59 mi (424.21 km) |
| Ottawa to Triangle (Virginia) | 638.99 mi (1,028.36 km) |
| Ottawa to Trinity (Florida) | 974.57 mi (1,568.42 km) |
| Ottawa to Trophy Club (Texas) | 737.42 mi (1,186.77 km) |
| Ottawa to Trotwood (Ohio) | 260.09 mi (418.58 km) |
| Ottawa to Troutdale (Oregon) | 1,695.78 mi (2,729.09 km) |
| Ottawa to Troy (Alabama) | 678.76 mi (1,092.36 km) |
| Ottawa to Troy (Illinois) | 190.26 mi (306.19 km) |
