| Middletown to Odessa (Texas) | 1,135.16 mi (1,826.87 km) |
| Middletown to Ogden (Utah) | 1,451.85 mi (2,336.53 km) |
| Middletown to Oildale (California) | 1,909.80 mi (3,073.52 km) |
| Middletown to Ojus (Florida) | 967.07 mi (1,556.35 km) |
| Middletown to Okemos (Michigan) | 221.28 mi (356.11 km) |
| Middletown to Oklahoma City (Oklahoma) | 771.96 mi (1,242.34 km) |
| Middletown to Okmulgee (Oklahoma) | 691.24 mi (1,112.45 km) |
| Middletown to Olathe (Kansas) | 561.12 mi (903.04 km) |
| Middletown to Old Jamestown (Missouri) | 320.28 mi (515.45 km) |
| Middletown to Oldsmar (Florida) | 797.23 mi (1,283.02 km) |
| Middletown to Olean (New York) | 357.77 mi (575.77 km) |
| Middletown to Olive Branch (Mississippi) | 435.03 mi (700.12 km) |
| Middletown to Olivehurst (California) | 1,974.60 mi (3,177.81 km) |
| Middletown to Olney (Maryland) | 390.54 mi (628.52 km) |
| Middletown to Olympia (Washington) | 1,985.18 mi (3,194.84 km) |
