https://www.devex.com/people/step-by-step-guide-to-adding-a-baby-as-a-lap-passenger-on-united-2383145By efserfe ewr / January 5, 2025 https://www.devex.com/people/step-by-step-guide-to-adding-a-baby-as-a-lap-passenger-on-united-2383145