| Manassas to Portage (Michigan) | 487.99 mi (785.35 km) |
| Manassas to Portage (Wisconsin) | 705.19 mi (1,134.90 km) |
| Manassas to Portales (New Mexico) | 1,466.76 mi (2,360.52 km) |
| Manassas to Porterville (California) | 2,268.43 mi (3,650.69 km) |
| Manassas to Portland (Maine) | 506.13 mi (814.53 km) |
| Manassas to Portland (Oregon) | 2,329.10 mi (3,748.32 km) |
| Manassas to Portland (Tennessee) | 516.10 mi (830.57 km) |
| Manassas to Portland (Texas) | 1,364.53 mi (2,196.00 km) |
| Manassas to Portsmouth (New Hampshire) | 459.24 mi (739.08 km) |
| Manassas to Portsmouth (Ohio) | 294.20 mi (473.47 km) |
| Manassas to Portsmouth (Virginia) | 145.11 mi (233.53 km) |
| Manassas to Post Falls (Idaho) | 2,055.49 mi (3,308.00 km) |
| Manassas to Potomac (Maryland) | 24.10 mi (38.78 km) |
| Manassas to Potomac Park (California) | 2,279.67 mi (3,668.77 km) |
| Manassas to Pottstown (Pennsylvania) | 142.82 mi (229.84 km) |
