| Ottawa to Timberwood Park (Texas) | 969.89 mi (1,560.89 km) |
| Ottawa to Timonium (Maryland) | 655.93 mi (1,055.61 km) |
| Ottawa to Tinley Park (Illinois) | 54.86 mi (88.29 km) |
| Ottawa to Tinton Falls (New Jersey) | 773.03 mi (1,244.08 km) |
| Ottawa to Tipp City (Ohio) | 261.43 mi (420.74 km) |
| Ottawa to Titusville (Florida) | 991.65 mi (1,595.91 km) |
| Ottawa to Toledo (Ohio) | 272.09 mi (437.88 km) |
| Ottawa to Tomball (Texas) | 865.60 mi (1,393.04 km) |
| Ottawa to Tonawanda (New York) | 521.54 mi (839.34 km) |
| Ottawa to Tooele (Utah) | 1,223.01 mi (1,968.25 km) |
| Ottawa to Topeka (Kansas) | 396.27 mi (637.74 km) |
| Ottawa to Torrance (California) | 1,687.82 mi (2,716.29 km) |
| Ottawa to Torrington (Connecticut) | 810.68 mi (1,304.67 km) |
| Ottawa to Totowa (New Jersey) | 759.81 mi (1,222.79 km) |
| Ottawa to Town 'n' Country (Florida) | 987.33 mi (1,588.95 km) |
