How to Contact Allegiant Airways in us?{????just Dial} Real Human & Live Person {call 24*7} ? To talk to a person atAllegiant Airlines Airlines, you have several options. You can call their customer service hotline "????-????????????-????????????-????????????????(OTA) or +????-????????????-????????????-????????????????(Live Person)", engage in live chat on their website, or use email support.?? ? The most direct way to speak with aAllegiant Airlinesrepresentative is by calling their customer service line 24 hours a day and seven days a week by calling at "(0TA) +????-????????????-????????????-????????????????(OTA) or +????-????????????-????????????-????????????????(Live Person).Allegiant Airlines's customer service number can be found on their official website.?