John Glenn Columbus International Airport (CMH) in Columbus, Ohio, provides a dedicated phone number for general inquiries and customer assistance. To reach the airport, you can contact the main information line at (614) 239-4000. This number connects travelers to the airport's customer service team, offering help with flight information, parking, terminal services, lost and found, an... https://askforairlines.com/john-glenn-columbus-international-airport-cmh/