https://www.devex.com/people/does-qatar-have-a-free-cancellation-policy-qatarcancellationpolicy-2195953

https://community.jungleworks.com/t/alaska-airlines-ota-what-are-the-cheapest-days-to-fly-on-alaska-airlines/74539

https://community.jungleworks.com/t/what-are-the-cheapest-days-to-fly-on-alaska-airlines-refund-time/74445

https://community.jungleworks.com/t/what-are-the-cheapest-days-to-fly-on-alaska-airlines-usa/74530

https://www.devex.com/people/does-qatar-give-full-refunds-refundqueries-2196026

https://www.devex.com/people/will-coinbase-contact-you-by-phone-start-immediately-2196139

Within 24 hours Yes, Singapore offers a 24-hour risk-free cancellation policy. You can cancel any flight within 24 hours of booking for a full refund, as long as the flight was booked at least 7 days before departure at +1-833-444-7613(US) OR [UK] +1-833-444-7613 Does Singapore Airlines have free cancellation? Singapore Airlines allows cancellations with full refunds within 24 hours of booking, provided your departure is at least two days away +【{+1 833-444-7613]]】. https://www.devex.com/people/how-late-can-i-cancel-my-singapore-airlines-flight-2196054

https://community.jungleworks.com/t/what-are-the-cheapest-days-to-fly-on-jetblue-easy-to-get-contact/74520

https://community.jungleworks.com/t/what-are-the-cheapest-days-to-fly-on-jetblue-to-t-e-g-i-e/74495

https://community.jungleworks.com/t/what-is-the-cheapest-day-to-book-a-jetblue-flight-correction-policy/74441