Allegiant Air Washington Office is located at 600 Independence Ave SW, Washington, DC 20024. Travelers can visit for ticket booking, flight inquiries, baggage assistance, and customer support. For help with reservations, cancellations, or flight schedules, call 1-844-238-2070. The Washington office staff offers professional assistance to ensure smooth travel planning. Contacting 1-844-238-2070 connects you with Allegiant Air representatives for reliable travel support.