niyijap 11 Ways to Call Avianca Customer Service Phone, Email, or Chat options: Step-by-Step Explained Guide aTo reach a live person at Avianca Airlines customer service for support, you can call their 24/7 Avianca Airlines Phone number hotline at 1-888-793-3403. OTA (Live Person) or 1-800-Avianca Airlines 1... Apr 14, 2025