For seamless travel, it is advisable to use public transportation in Milan and Paris, like the metro or bus. From the airports, taxis or private transfers allow for comfortable transport to the city. The cost varies depending on the mode of transportation, city regulations, and distance. The estimated time from Paris airport to central Paris is about an hour.
If you have more time, explore other famous places like the Galleria Vittorio Emanuele II, Lake Como in Milan, and the Louvre Museum, Notre-Dame cathedral, and Palace of Versailles in Paris. If you have less time, reduce your time at one or two locations.
In Milan, the main airport is Milan Malpensa Airport (MXP), which is about 31 miles northwest of the city center. The main airport in Paris is Charles de Gaulle Airport (CDG). It is about 14 miles northeast of the city center.