| Ardahan to Oakley (California) | 6,883.21 mi (11,077.46 km) |
| Ardahan to Oakton (Virginia) | 5,744.04 mi (9,244.13 km) |
| Ardahan to Oakville (Missouri) | 6,193.64 mi (9,967.70 km) |
| Ardahan to Oatfield (Oregon) | 6,389.93 mi (10,283.60 km) |
| Ardahan to Ocala (Florida) | 6,437.74 mi (10,360.54 km) |
| Ardahan to Ocean Acres (New Jersey) | 5,592.18 mi (8,999.74 km) |
| Ardahan to Ocean City (New Jersey) | 5,627.91 mi (9,057.24 km) |
| Ardahan to Ocean Pines (Maryland) | 5,692.80 mi (9,161.67 km) |
| Ardahan to Ocean Pointe (Hawaii) | 7,923.20 mi (12,751.16 km) |
| Ardahan to Ocean Springs (Mississippi) | 6,605.62 mi (10,630.72 km) |
| Ardahan to Oceanside (California) | 7,145.39 mi (11,499.39 km) |
| Ardahan to Oceanside (New York) | 5,524.05 mi (8,890.09 km) |
| Ardahan to Ocoee (Florida) | 6,446.89 mi (10,375.27 km) |
| Ardahan to Oconomowoc (Wisconsin) | 5,873.88 mi (9,453.09 km) |
| Ardahan to Odenton (Maryland) | 5,713.29 mi (9,194.65 km) |
