| Phillipsburg to Odenton (Maryland) | 137.85 mi (221.85 km) |
| Phillipsburg to Odessa (Texas) | 1,622.37 mi (2,610.96 km) |
| Phillipsburg to Ogden (Utah) | 1,905.30 mi (3,066.28 km) |
| Phillipsburg to Oildale (California) | 2,387.98 mi (3,843.08 km) |
| Phillipsburg to Ojus (Florida) | 1,057.26 mi (1,701.49 km) |
| Phillipsburg to Okemos (Michigan) | 495.90 mi (798.08 km) |
| Phillipsburg to Oklahoma City (Oklahoma) | 1,263.04 mi (2,032.67 km) |
| Phillipsburg to Okmulgee (Oklahoma) | 1,181.29 mi (1,901.11 km) |
| Phillipsburg to Olathe (Kansas) | 1,047.87 mi (1,686.39 km) |
| Phillipsburg to Old Jamestown (Missouri) | 811.18 mi (1,305.47 km) |
| Phillipsburg to Oldsmar (Florida) | 971.11 mi (1,562.86 km) |
| Phillipsburg to Olean (New York) | 193.99 mi (312.20 km) |
| Phillipsburg to Olive Branch (Mississippi) | 891.28 mi (1,434.38 km) |
| Phillipsburg to Olivehurst (California) | 2,432.38 mi (3,914.54 km) |
| Phillipsburg to Olney (Maryland) | 146.24 mi (235.35 km) |
