| Port Washington to Nyon | 3,842.56 mi (6,184.00 km) |
| Port Washington to Oberriet | 3,955.68 mi (6,366.06 km) |
| Port Washington to Obersiggenthal | 3,897.04 mi (6,271.68 km) |
| Port Washington to Oberwil | 3,865.22 mi (6,220.47 km) |
| Port Washington to Oberwingert | 3,916.13 mi (6,302.40 km) |
| Port Washington to Oftringen | 3,886.37 mi (6,254.50 km) |
| Port Washington to Olten | 3,884.66 mi (6,251.76 km) |
| Port Washington to Onex | 3,842.76 mi (6,184.33 km) |
| Port Washington to Opfikon | 3,910.19 mi (6,292.85 km) |
| Port Washington to Ostermundigen | 3,879.16 mi (6,242.91 km) |
| Port Washington to Payerne | 3,859.64 mi (6,211.49 km) |
| Port Washington to Pfaffikon | 3,921.31 mi (6,310.74 km) |
| Port Washington to Plan-les-Ouates | 3,843.98 mi (6,186.28 km) |
| Port Washington to Pratteln | 3,871.25 mi (6,230.17 km) |
| Port Washington to Prilly | 3,853.84 mi (6,202.16 km) |
