| Adria to Oakley (California) | 6,017.74 mi (9,684.62 km) |
| Adria to Oakton (Virginia) | 4,368.20 mi (7,029.94 km) |
| Adria to Oakville (Missouri) | 4,922.50 mi (7,922.00 km) |
| Adria to Oatfield (Oregon) | 5,600.23 mi (9,012.69 km) |
| Adria to Ocala (Florida) | 5,012.84 mi (8,067.39 km) |
| Adria to Ocean Acres (New Jersey) | 4,203.65 mi (6,765.12 km) |
| Adria to Ocean City (New Jersey) | 4,236.90 mi (6,818.63 km) |
| Adria to Ocean Pines (Maryland) | 4,297.00 mi (6,915.35 km) |
| Adria to Ocean Pointe (Hawaii) | 7,809.02 mi (12,567.40 km) |
| Adria to Ocean Springs (Mississippi) | 5,243.96 mi (8,439.33 km) |
| Adria to Oceanside (California) | 6,166.99 mi (9,924.80 km) |
| Adria to Oceanside (New York) | 4,140.10 mi (6,662.84 km) |
| Adria to Ocoee (Florida) | 5,013.08 mi (8,067.77 km) |
| Adria to Oconomowoc (Wisconsin) | 4,636.00 mi (7,460.92 km) |
| Adria to Odenton (Maryland) | 4,334.84 mi (6,976.26 km) |
