| Szentendre to Olympia Heights (Florida) | 5,332.36 mi (8,581.60 km) |
| Szentendre to Omaha (Nebraska) | 5,123.46 mi (8,245.41 km) |
| Szentendre to On Top of the World Designated Place (Florida) | 5,242.48 mi (8,436.96 km) |
| Szentendre to Onalaska (Wisconsin) | 4,825.17 mi (7,765.35 km) |
| Szentendre to Oneida (New York) | 4,305.38 mi (6,928.84 km) |
| Szentendre to Oneonta (New York) | 4,310.55 mi (6,937.16 km) |
| Szentendre to Ontario (California) | 6,185.25 mi (9,954.20 km) |
| Szentendre to Ontario (Oregon) | 5,559.24 mi (8,946.74 km) |
| Szentendre to Opa-locka (Florida) | 5,319.92 mi (8,561.59 km) |
| Szentendre to Opelika (Alabama) | 5,185.95 mi (8,345.98 km) |
| Szentendre to Opelousas (Louisiana) | 5,556.03 mi (8,941.56 km) |
| Szentendre to Orange (California) | 6,205.38 mi (9,986.60 km) |
| Szentendre to Orange (Texas) | 5,640.85 mi (9,078.07 km) |
| Szentendre to Orange City (Florida) | 5,209.96 mi (8,384.62 km) |
| Szentendre to Orangeburg (South Carolina) | 4,965.01 mi (7,990.42 km) |
