https://patch.com/new-york/new-york-city/calendar/event/20250222/394b2d5a-193a-48d7-9b42-a6b93d7c8900/immedi-te-response-what-is-the-cheapest-day-to-book-flights-on-american-airlines
https://www.goodreads.com/topic/show/23043971-twilight—amtrak-cheapest-what-is-the-cheapest-day-to-buy-amtrak-ti