What do you suggest is the best way to get from Amsterdam to Kraków?
Sleeper train?
Flight?
What do you suggest is the best way to get from Amsterdam to Kraków?
Sleeper train?
Flight?
KLM flies direct from Amsterdam to Kraków in less than 2 hours. I would fly.
I also would fly, as recommended on your last thread: https://community.ricksteves.com/travel-forum/general-europe/first-time-backpacking-europe-summer.
Look for a better fare perhaps with connecting flights through Frankfurt, Zurich or Vienna.