They're obviously not the most affordable things around, but if you have an iPhone and spending ~US$250 on a pair of wireless earbuds won't unduly stress your budget, the transparency mode on AirPods Pro is great for this.

They are great. But… I tried them on a plane. It may have been full sound cancelling rather than transparency, and it works, and goes silent but it’s a weird silence. It sort of feels heavy, or loud.