| Mason City to Ondokuzmayis | 5,793.42 mi (9,323.61 km) |
| Mason City to Ordu | 5,875.18 mi (9,455.18 km) |
| Mason City to Ortahisar | 5,919.55 mi (9,526.59 km) |
| Mason City to Ortakent | 5,752.94 mi (9,258.46 km) |
| Mason City to Ortaklar | 5,718.41 mi (9,202.89 km) |
| Mason City to Ortakoy | 5,887.17 mi (9,474.49 km) |
| Mason City to Ortakoy | 5,837.92 mi (9,395.23 km) |
| Mason City to Osmaneli | 5,669.53 mi (9,124.22 km) |
| Mason City to Osmaniye | 6,050.38 mi (9,737.14 km) |
| Mason City to Ozdere | 5,698.40 mi (9,170.69 km) |
| Mason City to Palu | 6,066.97 mi (9,763.85 km) |
| Mason City to Pamukkale | 5,771.83 mi (9,288.86 km) |
| Mason City to Patnos | 6,117.01 mi (9,844.38 km) |
| Mason City to Pazar | 5,870.52 mi (9,447.68 km) |
| Mason City to Pazarcik | 6,059.05 mi (9,751.11 km) |
