| Port Huron to Ondokuzmayis | 5,461.26 mi (8,789.05 km) |
| Port Huron to Ordu | 5,548.89 mi (8,930.07 km) |
| Port Huron to Ortahisar | 5,568.80 mi (8,962.12 km) |
| Port Huron to Ortakent | 5,363.40 mi (8,631.57 km) |
| Port Huron to Ortaklar | 5,333.22 mi (8,582.98 km) |
| Port Huron to Ortakoy | 5,533.28 mi (8,904.96 km) |
| Port Huron to Ortakoy | 5,496.54 mi (8,845.82 km) |
| Port Huron to Osmaneli | 5,305.93 mi (8,539.07 km) |
| Port Huron to Osmaniye | 5,699.04 mi (9,171.72 km) |
| Port Huron to Ozdere | 5,312.35 mi (8,549.40 km) |
| Port Huron to Palu | 5,740.26 mi (9,238.06 km) |
| Port Huron to Pamukkale | 5,393.30 mi (8,679.69 km) |
| Port Huron to Patnos | 5,807.00 mi (9,345.46 km) |
| Port Huron to Pazar | 5,533.74 mi (8,905.70 km) |
| Port Huron to Pazarcik | 5,714.38 mi (9,196.40 km) |
