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https://www.goodreads.com/quotes/12919885-what-is-the-cheapest-day-to-book-a-delta-flight
https://www.goodreads.com/quotes/12919885-what-is-the-cheapest-day-to-book-a-delta-flight
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https://www.goodreads.com/quotes/12919885-what-is-the-cheapest-day-to-book-a-delta-flight
