So far it is on. We are flying to Abbostford in fact
I have recently travelled to Mexico, I have taken breastmilk (not frozen) in Dr Browns bottles with the cap and there was no issue. I have used a little cooler bag + ice pack that I purchased Amazon and I also had multiple bottles of unopened ready to feed formula. However I had to dump out the hot water I had in my thermos cup because it wasn’t leak proof. I brought the hot water originally to warm up the milk as my LO never drank cold milk before but then he did and he was fine. Good luck for your trip.
Good luck with your flight!
We flew Edmonton to Vancouver and had frozen and fresh pumped milk in bottles no issues with quantity but just expect some extra screening at security
Flew from Toronto to Mexico 2 weeks ago and had no issues going through security. You can have milk in a bottle (I had 4oz) with you and they won’t make you throw it out as this liquid is considered an exception. It just needs to go through the scanning incubator thing where you pit things in the container. I also brought 20 bags of frozen milk in a backpack cooler with ice packs and had no issues. Just label the bag “breastmilk” and you will have no issues. Good luck and safe travels!
Are you sure you are still flying? 🙈 The news say it's very bad weather with lots of delays there. (sorry for off topic 🙈)