https://support.cgu.edu/hc/en-us/community/posts/32095519616148--Frontier-%F0%9D%9F%8F-%F0%9D%9F%96%F0%9D%9F%94%F0%9D%9F%94-%F0%9D%9F%95%F0%9D%9F%91%F0%9D%9F%96-%F0%9D%9F%8E%F0%9D%9F%95%F0%9D%9F%90%F0%9D%9F%97-What-is-the-cheapest-day-to-fly-on-Frontier
https://support.cgu.edu/hc/en-us/community/posts/32095519616148--Frontier-%F0%9D%9F%8F-%F0%9D%9F%96%F0%9D%9F%94%F0%9D%9F%94-%F0%9D%9F%95%F0%9D%9F%91%F0%9D%9F%96-%F0%9D%9F%8E%F0%9D%9F%95%F0%9D%9F%90%F0%9D%9F%97-What-is-the-cheapest-day-to-fly-on-Frontier