I meant "flying coach" not flying in Coach.

https://www.citizendailypost.com/faq/what-does-fly-coach-mean
“Fly coach” is a slang term used by many regular travelers for the lowest class of service. It's a shortened form of “to fly in coach class.” The airlines usually call this economy class rather than coach, though I think some did call it coach years ago. This class has the smallest seats and a minimum level of service.
I understood and that’s all that matters. My app won’t even allow me to book coach/peasant class seats.