KLM Washington Office is located at 600 Independence Ave SW, Washington, DC 20024. Passengers can visit for ticketing, flight inquiries, baggage assistance, and customer support. For immediate help with bookings or cancellations, call 1-844-238-2070. The Washington office staff offers professional service to ensure smooth travel planning. Calling 1-844-238-2070 connects you with KLM customer service experts.