https://central.xero.com/s/question/0D58V00009SI3QySAL/%F0%9D%95%BE%F0%9D%96%95%F0%9D%96%8E%F0%9D%96%97%F0%9D%96%8E%F0%9D%96%99-what-is-the-best-day-to-book-flights-on-spirit-%F0%9D%90%80%F0%9D%90%A2%F0%9D%90%AB%F0%9D%90%A5%F0%9D%90%A2%F0%9D%90%A7%F0%9D%90%9E%F0%9D%90%AC
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