https://www.theworldofcdi.com/community/topic/complete-list-of-alaska-airlines%ef%b8%8f-customer-service-contact-numbers-in-usa-full-detailed-guide-2/#postid-3885

https://www.theworldofcdi.com/community/topic/official-southwest-airlines-customer-service-contact-numbers-in-the-usa-full-detailed-guide/#postid-3886

https://www.theworldofcdi.com/community/topic/full-list-of-official-expedia-customer%ef%b8%8fsupport-customer-service-contact-number-in-usa/#postid-3887