This is shown by a simple comparison of ticket prices from Ostrava and Katowice to Burgas in Bulgaria or to Crete to Heraklion. While the ticket with Smartwings from Mosnov Airport in Crete costs CZK 8,154, the Polish state carrier LOT offers a direct flight from Katowice to Heraklion for CZK 1,194. There are similar differences in Burgas, where, in addition to LOT from Katowice, Wizz Air also flies.