United States
https://support.hammerhead.io/hc/en-us/community/posts/29740658887195--18558384701-Does-Turkish-Airlines-have-a-24-hour-cancellation-policy
https://support.hammerhead.io/hc/en-us/community/posts/29740555720475--18558384701-Does-Turkish-Airlines-have-a-24-hour-cancellation-policy
https://support.hammerhead.io/hc/en-us/community/posts/29740491382555--18558384701-Does-Turkish-Airlines-have-a-24-hour-cancellation-policy
https://support.hammerhead.io/hc/en-us/community/posts/29740497009691--18558384701-Does-Turkish-Airlines-have-a-24-hour-cancellation-policy
https://community.servicetitan.com/t5/General-Office/101-GURANTEED-1-855-8384-982-Do-you-have-24-hours-to-cancel-with/m-p/56348#M3607
https://www.yelp.com/biz/united-airlines-san-diego?hrid=HbBa-fDtdPStvyqyLM2TOw&utm_campaign=www_review_share_postreview&utm_medium=copy_link&utm_source=(direct)
https://community.servicetitan.com/t5/General-Office/1-866-738-0729-Does-Emirates-have-free-cancellation-for-24-hours/m-p/55949#M3476
https://support.hammerhead.io/hc/en-us/community/posts/29738705703579--24-7-GUIDE-1-866-738-0729-%F0%9D%90%84%F0%9D%90%AE%F0%9D%90%AB%F0%9D%90%A8%F0%9D%90%B0%F0%9D%90%A2%F0%9D%90%A7%F0%9D%90%A0%F0%9D%90%AC-%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%...
https://community.servicetitan.com/t5/General-Office/What-day-of-the-week-is-cheapest-to-fly-on-Southwest-Airlines/m-p/55900#M3444
https://support.hammerhead.io/hc/en-us/community/posts/29738657395995--24-7-GUIDE-1-866-738-0729-EUROWINGS-24-HOUR-CANCELLATION