https://www.devex.com/people/is-it-possible-to-get-a-refund-from-klm-2378109

https://www.devex.com/people/can-i-cancel-qatar-airways-within-24-hours-without-fees-expert-advise-2378024

https://www.devex.com/people/what-is-the-24-hour-rule-for-klm-2378564

https://www.devex.com/people/how-to-communicate-directly-with-allegiant-airlines-fast-2379014

https://www.devex.com/people/is-it-possible-to-get-a-refund-from-klm-2378109

Does Lufthansa have a free cancellation policy(Help Centre)

https://www.devex.com/people/does-qatar-have-a-free-cancellation-policy-su-2378355

https://www.devex.com/people/how-do-i-really-get-through-to-qatar-airways-expert-advise-2378458

https://www.devex.com/people/is-it-possible-to-get-a-refund-from-klm-2378080

https://www.devex.com/people/can-i-change-my-lufthansa-flight-for-free-hurry-up-2377795