Difference between op-amp input swing and common mode input voltage range
In case you meant the voltage between the two inputs as "swing" take care on this. Some opamps are quite happy to have the full supply rails separating the inputs whilst other opamps would smoke under the same circumstances because they have an input circuit that will only tolerate maybe a volt or so. Usually this is due to input protection diodes.

Common mode voltage range assumes  the 2 inputs are largely at the same potential and is the range that both inputs can be taken to either power rail without significantly disrupting the amplification process or causing dc offsets.