https://ilmarching.com/forum/index.php?/topic/548-complete-list-of-frontier-airlines%C2%AE-official-customer%E2%84%A2-care%C2%AE-us-based-contact-numbers-a-step~by~step~guide/

https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-spirit-airlines-customer-service/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-frontier-airlines-customer-service/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-southwest-airlines-customer-service/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-turkish-airlines-customer-service/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-copa-airlines-customer-service/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-avianca-airlines-customer-service/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-air-france-customer-service%e2%84%97-24-7-live/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-air-canada-customer-service%e2%84%97-24-7-live/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-jetblue-customer-service%e2%84%97-24-7-live/ https://www.ichords.org/forums/topic/full-%e2%95%91list%e2%95%91-of-official-british-airways-customer-service%e2%84%97/

https://www.buzzfeed.com/usaunitedairlinesservice

https://travelhelpcenert.createaforum.com/general-discussion/full-list-of-united-airlines65039-customer-support65039-usa-contact-numbers-your/