noun
one-way airline ticket; one-way plane ticket
Refers specifically to a ticket for a single flight segment without a return. Commonly used in travel contexts.
片道航空券を予約しました。
I booked a one-way airline ticket.
片道航空券だけ買って、帰りの便はまだ決めていません。
I only bought a one-way plane ticket and haven't decided on the return flight yet.
Compound of 片道 (one-way) + 航空券 (airline ticket).