Warsaw Airport Train Transfer
There are three trains that run between the Warsaw airport and the Warsaw city center. The trains all have the same beginning point, which is the Warsaw Airport, but they are operated by two different train lines and their end point destinations and stops along the way differ. And of note, and you have to be very careful of this, even the same train line with the same endpoint will not always stop at the Central Train Station.
Below is a video showing a train ride from the airport via the Warsaw Central commuter station to the Polish National Stadium.
The ride from the airport to the city center takes about 25 minutes.
Trains depart from the airport more often during the early morning hours when there is a lot of aircraft incoming activity. Trains depart about every 10 minutes.
On all hours, trains depart more like every 15 to 20 minutes.
You can run into some confusion as to what train to take if you're interested in going from the airport to the central train station and onto Krakow or an other city from the central train station. You do not want to end up at the commuter train station and how to walk back to the central train station.
When you arrive at the airport and come out of the customs hall go to the right, as shown in the video, and take the time to visit the information booth so that you can get information about choosing the appropriate train.
Also, do not be afraid to ask the conductors for help.