economy class
US /ɪˈkɑː.nə.mi ˌklæs/
UK /ɪˈkɑː.nə.mi ˌklæs/

1.
经济舱
the cheapest class of seating in an airplane or on a train
:
•
I always fly economy class to save money.
我总是乘坐经济舱以节省开支。
•
Our tickets are for economy class, so we'll be in the back.
我们的机票是经济舱的,所以我们会在后面。