Airplane Ticket
Plane Ticket
noun
An aviation (航空) ticket is the kind of ticket you need to fly on an airplane. That's an airplane ticket.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
航空券を予約しました。
I booked a plane ticket.
航空券ってなんでこんなに高いの？
Why are plane tickets so expensive?
博多までの航空券を手配してもらえますか。
Could you arrange a flight for me to Hakata?
航空券をなくしたうえに、パスポートを犬に食べられたんです。
Not only did I lose my plane ticket, but my passport was eaten by my dog.