https://www.buzzfeed.com/deltaairlines_helpcareservices/full-list-of-delta-airlines-customer-service-in-us

https://www.buzzfeed.com/unitedairlines_hepservicesss/full-list-of-united-airlines-customer-service-in-u

https://www.buzzfeed.com/unitedairlines_hepservicesss

https://www.buzzfeed.com/expedia_helpcareservices/full-list-of-expedia-customer-service-in-usastep

https://www.buzzfeed.com/expedia_helpcareservices

https://www.buzzfeed.com/singapore_helpline_contact

https://www.buzzfeed.com/singaporeair_contactnumber

https://www.buzzfeed.com/us_singapore_air_customerguide

https://www.buzzfeed.com/usa_singaporeairhelpguide

https://www.buzzfeed.com/airfrance_contact_helpline