https://support.google.com/phoneapp/thread/333224021/f-st-guide-faqs-what-is-the-cheapest-day-to-fly-on-ir-anada-

https://support.google.com/phoneapp/thread/333224021/f-st-guide-faqs-what-is-the-cheapest-day-to-fly-on-%F0%9D%98%BCir-%F0%9D%98%BEanada-%F0%9D%98%BC%F0%9D%99%84%F0%9D%99%8D%F0%9D%99%87%F0%9D%99%84%F0%9D%99%89%F0%9D%99%80%F0%9D%99%8E