https://www.devex.com/people/klmrefundoptions-what-is-klm-s-cancellation-policy-2304452

https://www.devex.com/people/what-is-the-cancellation-rate-for-klm-understanding-cancellation-2304729

https://knowt.com/note/fada1b2c-7ed6-4b90-835f-6224a68ee4ff/USA-or-UK--Expedia-

https://www.devex.com/people/o-allow-free-changes-get-info-2303637

https://knowt.com/note/dcaf31af-54ab-4b63-bf54-a9d268216396/USAHow-do-I-speak-to-someone-on-Ex

https://www.devex.com/people/does-lufthansa-allow-date-change-2304992

https://www.devex.com/people/how-do-i-really-get-through-to-qatar-airways-general-faqs-2303667

https://support.americommerce.com/hc/en-us/community/posts/32303678917659--%F0%9D%94%BC%F0%9D%95%A9%F0%9D%95%A1%F0%9D%95%96%F0%9D%95%95%F0%9D%95%9A%F0%9D%95%92-%F0%9D%95%93%F0%9D%95%A0%F0%9D%95%A0%F0%9D%95%9C%F0%9D%95%9A%F0%9D%95%9F%F0%9D%95%98-Can-you-get-a-refund-if-you-cancel-a-flight-on-Expedia-without-penalty

https://www.devex.com/people/do-klm-allow-name-changes-klm-faqs-modify-2304020

https://www.devex.com/people/faq-does-qatar-airways-have-a-cancellation-policy-2303676