| Kirkwood to Odessa (Texas) | 815.67 mi (1,312.69 km) |
| Kirkwood to Ogden (Utah) | 1,153.62 mi (1,856.57 km) |
| Kirkwood to Oildale (California) | 1,587.06 mi (2,554.13 km) |
| Kirkwood to Ojus (Florida) | 1,056.61 mi (1,700.44 km) |
| Kirkwood to Okemos (Michigan) | 424.62 mi (683.36 km) |
| Kirkwood to Oklahoma City (Oklahoma) | 446.26 mi (718.18 km) |
| Kirkwood to Okmulgee (Oklahoma) | 369.71 mi (594.98 km) |
| Kirkwood to Olathe (Kansas) | 238.05 mi (383.10 km) |
| Kirkwood to Old Jamestown (Missouri) | 19.43 mi (31.27 km) |
| Kirkwood to Oldsmar (Florida) | 853.24 mi (1,373.16 km) |
| Kirkwood to Olean (New York) | 675.50 mi (1,087.10 km) |
| Kirkwood to Olive Branch (Mississippi) | 251.97 mi (405.51 km) |
| Kirkwood to Olivehurst (California) | 1,668.01 mi (2,684.41 km) |
| Kirkwood to Olney (Maryland) | 718.58 mi (1,156.45 km) |
| Kirkwood to Olympia (Washington) | 1,732.06 mi (2,787.49 km) |
