| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/is-united-airlines-compensation-for-cancellation-complete-refund-rules |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/faq-s-is-united-airlines-compensation-for-cancellation |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/united-compcenter-is-united-airlines-compensation-for-cancellation-explained |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/united-quickclaim-is-united-airlines-compensation-for-cancellation-full-policy |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/does-united-airlines-compensate-for-cancelled-flights-full-traveler-s-guide |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/faq-s-does-united-airlines-compensate-for-cancelled-flights |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/united-carenow-does-united-airlines-compensate-for-cancelled-flights-step-guide |
| https://customerhelp24x7.zohodesk.com/portal/en/kb/articles/united-claimassist-does-united-airlines-compensate-for-cancelled-flights-support-info |
| https://its.comminfo.rutgers.edu/wp-content/uploads/formidable/22/is-an-air-france-ticket-fully-refundable-refundablefares.pdf |
| https://artsciportal.wustl.edu/sites/artsciportal.wustl.edu/files/webform/webform_13692/_sid_/aafeeline-how-much-does-it-cost-to-change-a-ticket-on-american-airlines-info.pdf |
