| Wheaton to Olympia (Washington) | 1,737.76 mi (2,796.66 km) |
| Wheaton to Olympia Heights (Florida) | 1,199.27 mi (1,930.03 km) |
| Wheaton to Omaha (Nebraska) | 412.62 mi (664.05 km) |
| Wheaton to On Top of the World Designated Place (Florida) | 939.27 mi (1,511.61 km) |
| Wheaton to Onalaska (Wisconsin) | 210.54 mi (338.84 km) |
| Wheaton to Oneida (New York) | 639.34 mi (1,028.92 km) |
| Wheaton to Oneonta (New York) | 668.63 mi (1,076.06 km) |
| Wheaton to Ontario (California) | 1,685.69 mi (2,712.86 km) |
| Wheaton to Ontario (Oregon) | 1,460.27 mi (2,350.07 km) |
| Wheaton to Opa-locka (Florida) | 1,189.63 mi (1,914.52 km) |
| Wheaton to Opelika (Alabama) | 652.72 mi (1,050.45 km) |
| Wheaton to Opelousas (Louisiana) | 813.37 mi (1,309.00 km) |
| Wheaton to Orange (California) | 1,704.18 mi (2,742.61 km) |
| Wheaton to Orange (Texas) | 869.58 mi (1,399.45 km) |
| Wheaton to Orange City (Florida) | 971.07 mi (1,562.79 km) |
