| Armthorpe to Oswego (Illinois) | 3,885.20 mi (6,252.62 km) |
| Armthorpe to Oswego (New York) | 3,356.93 mi (5,402.46 km) |
| Armthorpe to Otsego (Minnesota) | 3,900.80 mi (6,277.72 km) |
| Armthorpe to Ottawa (Illinois) | 3,919.11 mi (6,307.20 km) |
| Armthorpe to Ottawa (Kansas) | 4,292.07 mi (6,907.41 km) |
| Armthorpe to Ottumwa (Iowa) | 4,066.83 mi (6,544.93 km) |
| Armthorpe to Overland (Missouri) | 4,107.42 mi (6,610.25 km) |
| Armthorpe to Overland Park (Kansas) | 4,256.48 mi (6,850.13 km) |
| Armthorpe to Overlea (Maryland) | 3,543.72 mi (5,703.07 km) |
| Armthorpe to Oviedo (Florida) | 4,258.78 mi (6,853.84 km) |
| Armthorpe to Owasso (Oklahoma) | 4,432.14 mi (7,132.84 km) |
| Armthorpe to Owatonna (Minnesota) | 3,944.40 mi (6,347.90 km) |
| Armthorpe to Owensboro (Kentucky) | 4,031.79 mi (6,488.53 km) |
| Armthorpe to Owings Mills (Maryland) | 3,552.29 mi (5,716.86 km) |
| Armthorpe to Owosso (Michigan) | 3,668.58 mi (5,904.01 km) |
