Can I carry an extra bag instead of a backpack when I take a low-cost flight?

A. 1

I put it in a big bag at the duty-free shop and rode it

Lady 7 years ago 0

OK

A. 2

I think there's only one regulation, but it doesn't block even if I carry three or four

Lady 7 years ago 0

OK

A. 3

There was no problem in Korea, but he sometimes stops me when I return from Japan

Lady 7 years ago 0

OK

A. 4

One is the rule

Lady 7 years ago 0

OK

A. 5

I think there are times when it's blocked
I've never done that before

Lady 7 years ago 0

OK