[Publius6961]

I don't know about y'all, but if my contacts aren't immersed in liquid, they turn into teensy little clear potato-chip-lookin' thingies and will never be fit for insertion again.

Not having ever worn contacts, I might be out in left field, but...
Can't you just wear them, dump the liquid, and replenish the liquid after arriving at your destination?

[NittanyLion]

Not having ever worn contacts, I might be out in left field, but...Can't you just wear them, dump the liquid, and replenish the liquid after arriving at your destination?

My wife wears them - she uses eyedrops because her contacts tend to dry out in flight.

[Xenalyte]

That's entirely feasible, but airplane cabins are VERY dry and have almost no humidity. My eyes dry out easily, and I need saline solution if those contacts are in, which they always are because they correct my vision far better than glasses can.

I have a contact lens case that holds the plastic lens box and a teensy little bottle for saline solution - it holds literally about 30 drops. Of salt water.

But I can't bring it on now.