https://support.empowersuite.com/hc/en-us/community/posts/16232729621404-What-is-the-cheapest-day-to-buy-flights-on-United

https://www.honor.com/globalgm/club/topicdetail/topicid-3623975945207809/

https://apidocs.eightfold.ai/discuss/66ffde0e52f928003663fbda

https://support.jmir.org/hc/en-us/community/posts/29785568790811--1-801-855-59-05-What-is-the-cancelation-policy-for-United-Airlines-UA-Refund-Process

https://help.concept3d.com/hc/en-us/community/posts/34067700921235--FAQs-American-What-Day-Is-Cheapest-To-Book-American-Airlines

https://support.jmir.org/hc/en-us/community/posts/29784335334427--AMERICAN-FAQs-What-is-the-cheapest-day-to-book-flights-on-American-Airlines

https://support.jmir.org/hc/en-us/community/posts/29783310739355--1-801-855-59-05Is-Air-France-free-cancellation-Booking-tart

https://support.jmir.org/hc/en-us/community/posts/29782875822363--American-Cheapest-What-days-are-American-Airlines-cheapest-to-fly

https://support.jmir.org/hc/en-us/community/posts/29782260343451--1-801-855-59-05Does-%F0%9D%94%BD%F0%9D%95%A3%F0%9D%95%A0%F0%9D%95%9F%F0%9D%95%A5%F0%9D%95%9A%F0%9D%95%96%F0%9D%95%A3-%E2%84%9Defund-you-if-you-cancel-Booking-tart

https://www.honor.com/globalgm/club/topicdetail/topicid-3623920918102016/