"I never fly without EarPlanes! Best plugs ever, even if you never get ear pain in flying if you fly even once with sinus or ear planes you will never fly without them again!" —briannao3
"EarPlanes! My ears don't pop on planes, so the pressure is intense and painful, lasting the entire ride and a while after. EarPlanes are like, earplugs designed to help with pressure changes and they are literally life saving." —draculavarney
"I swear by those EarPlanes! The only way I can fly without suffering for weeks afterward, with diabolical ear pain. My first flight ever was by myself, and I thought I was dying." —bethramseya
Get them from Amazon Canada for $9.36 (also available in sets of three, five, and ten).