Merhaba

I need assistance translating a word in the following sentence:

" If you go by plane you could easily end up paying a thousand lira. "

How would we translate "easily" in this case?

Şimdiden teşekkür ederim.

In that context, we would say " rahat " for "easily" and we would say that sentence as follows ;

Uçakla gidersen rahat bin lira çıkar cebinden.

I`ve thought at kolayca

can use it...?

Uçakla gidersen kolayca bin lira ödersin.  ---> "Kolayca" doesn´t make sense in this context Elena.