https://community.lumivero.com/s/question/0D5Jw00000dNnjZKAS/faqsfrontierwhat-day-of-the-week-are-frontier-flights-cheapest?language=en_US
https://community.lumivero.com/s/question/0D5Jw00000dNn0QKAS/easyway180185555905does-frontier-give-you-a-refund?language=en_US