https://central.xero.com/s/question/0D58V00009TPi4lSAD/what-is-the-cheapest-day-to-book-a-%F0%9D%95%81etblue-flightexpert-advice
https://central.xero.com/s/question/0D58V00009TPi4lSAD/what-is-the-cheapest-day-to-book-a-%F0%9D%95%81etblue-flightexpert-advice