| Sessa Aurunca to Olympia Heights (Florida) | 5,276.80 mi (8,492.19 km) |
| Sessa Aurunca to Omaha (Nebraska) | 5,252.87 mi (8,453.67 km) |
| Sessa Aurunca to On Top of the World Designated Place (Florida) | 5,220.45 mi (8,401.50 km) |
| Sessa Aurunca to Onalaska (Wisconsin) | 4,948.20 mi (7,963.36 km) |
| Sessa Aurunca to Oneida (New York) | 4,352.62 mi (7,004.87 km) |
| Sessa Aurunca to Oneonta (New York) | 4,350.16 mi (7,000.90 km) |
| Sessa Aurunca to Ontario (California) | 6,393.82 mi (10,289.85 km) |
| Sessa Aurunca to Ontario (Oregon) | 5,806.03 mi (9,343.90 km) |
| Sessa Aurunca to Opa-locka (Florida) | 5,265.06 mi (8,473.30 km) |
| Sessa Aurunca to Opelika (Alabama) | 5,204.66 mi (8,376.09 km) |
| Sessa Aurunca to Opelousas (Louisiana) | 5,598.06 mi (9,009.20 km) |
| Sessa Aurunca to Orange (California) | 6,414.22 mi (10,322.68 km) |
| Sessa Aurunca to Orange (Texas) | 5,689.98 mi (9,157.14 km) |
| Sessa Aurunca to Orange City (Florida) | 5,181.26 mi (8,338.43 km) |
| Sessa Aurunca to Orangeburg (South Carolina) | 4,965.45 mi (7,991.11 km) |
