| Port Angeles to Nuth | 4,966.23 mi (7,992.37 km) |
| Port Angeles to Oegstgeest | 4,859.66 mi (7,820.87 km) |
| Port Angeles to Oirschot | 4,918.68 mi (7,915.85 km) |
| Port Angeles to Oisterwijk | 4,911.51 mi (7,904.31 km) |
| Port Angeles to Oldebroek | 4,877.81 mi (7,850.08 km) |
| Port Angeles to Oldenzaal | 4,909.19 mi (7,900.58 km) |
| Port Angeles to Ommen | 4,885.80 mi (7,862.93 km) |
| Port Angeles to Oosterend | 4,849.61 mi (7,804.70 km) |
| Port Angeles to Oosterhout | 4,899.93 mi (7,885.67 km) |
| Port Angeles to Oosterwolde | 4,855.49 mi (7,814.16 km) |
| Port Angeles to Oostzaan | 4,855.14 mi (7,813.60 km) |
| Port Angeles to Opmeer | 4,841.39 mi (7,791.47 km) |
| Port Angeles to Oss | 4,908.39 mi (7,899.28 km) |
| Port Angeles to Oud-Beijerland | 4,879.08 mi (7,852.12 km) |
| Port Angeles to Oudenbosch | 4,895.08 mi (7,877.88 km) |
