| Sammamish to Opole | 5,242.94 mi (8,437.70 km) |
| Sammamish to Orzesze | 5,290.87 mi (8,514.84 km) |
| Sammamish to Osowa | 5,020.77 mi (8,080.15 km) |
| Sammamish to Ostroda | 5,092.61 mi (8,195.76 km) |
| Sammamish to Ostroleka | 5,160.17 mi (8,304.50 km) |
| Sammamish to Ostrow Mazowiecka | 5,182.69 mi (8,340.73 km) |
| Sammamish to Ostrow Wielkopolski | 5,179.99 mi (8,336.38 km) |
| Sammamish to Ostrowiec Swietokrzyski | 5,291.43 mi (8,515.74 km) |
| Sammamish to Ostrzeszow | 5,196.61 mi (8,363.13 km) |
| Sammamish to Oswiecim | 5,306.94 mi (8,540.69 km) |
| Sammamish to Otwock | 5,214.65 mi (8,392.16 km) |
| Sammamish to Ozarow Mazowiecki | 5,200.09 mi (8,368.74 km) |
| Sammamish to Ozimek | 5,248.01 mi (8,445.85 km) |
| Sammamish to Ozorkow | 5,188.10 mi (8,349.44 km) |
| Sammamish to Pabianice | 5,209.66 mi (8,384.14 km) |
