https://central.xero.com/s/question/0D58V00009NvMWbSAN/what-is-the-cheapest-day-to-book-flights-on-united
https://central.xero.com/s/question/0D58V00009NvMWbSAN/what-is-the-cheapest-day-to-book-flights-on-united
https://central.xero.com/s/question/0D58V00009NvMWbSAN/what-is-the-cheapest-day-to-book-flights-on-united
https://central.xero.com/s/question/0D58V00009NvMWbSAN/what-is-the-cheapest-day-to-book-flights-on-united
https://central.xero.com/s/question/0D58V00009NvMWbSAN/what-is-the-cheapest-day-to-book-flights-on-united
https://central.xero.com/s/question/0D58V00009NvMWbSAN/what-is-the-cheapest-day-to-book-flights-on-united