I've been pumping after each morning feed to build up a freezer stash and we are currently traveling. I would like to keep this up but I'm not sure how to deal with the milk. We are staying in a hotel (fridge but no freezer) but I can put it in the freezer at my family's house.

Can I put the frozen milk in a soft cooler with an icepack and put it in my checked bag? Or should I just not worry about it this week? Today is our first day here and I didn't pump this morning because I wasn't sure!