International Society for Traumatic Stress Studies

Hotel and Travel

Washington Marriott Wardman Park

2660 Woodley Road NW
Washington, District Of Columbia 20008 USA
Toll Free Reservations: +1-800-228-9290
General Guest Phone: +1-202-328-2000

Book your room now.

ISTSS has negotiated a special rate of $229 per night, single or double occupancy (complimentary internet included).  Rooms and rates are based on availability and subject to state and local fees/taxes (which are currently 10 percent per room).  Be sure to make reservations by October 5, 2018; afterward, the discounted room rates may not apply.

Make your reservation today!  To make your reservation by phone, call the Washington Marriott Wardman Park reservation line at +1-800-228-9290, 24 hours a day, seven days a week and inform them you are attending the ISTSS Meeting.

All reservations require a first night room deposit, or guests can guarantee reservations with a major credit card.  Your credit card will not be charged prior to arrival.  Make any necessary cancellations at least 48 hours before the scheduled date of arrival to avoid a cancellation charge.  Hotel check-in time is 4 p.m. and check-out is 12 p.m.

Airport Transportation Information

Ronald Reagan Washington National Airport (DCA) is 7 miles from the Washington Marriott Wardman Park. The estimated taxi fare from DCA to the hotel is $30 (one way) or you can take the metro for $2 (one way).

Washington Dulles International Airport (IAD) is 24 miles from the Washington Marriott Wardman Park. The estimated taxi fare from IAD to the hotel is $60 (one way).

Air Travel

Delta Air Lines is offering special discounted* airfares for ISTSS 2018 attendees traveling to the US: Washington, D.C..

Discounts vary, depending on the class of ticket purchased, up to 10 percent off the fare.

*Please note the following:

  • Not all fare codes are eligible for a discount; fare rules determine eligibility.
  • Discounts vary, depending on the class of ticket purchased, and apply to round-trip travel only.
  • Not valid with any other discounts, certificates, coupons or promotional offers.
  • Name changes on the ticket are permitted at $200 USD/$200 CAD on select fares.

To take advantage of these Travel Discounts for flights to and from Washington, DC:
  • Visit the website and click the Advanced Search link.
  • Complete the required fields and enter the meeting code “NMPN3.”

You may also call Delta Meeting Network® Reservations at +1-800-328-1111

(Please use the same phone number to make changes to an existing Delta Meetings Network reservation.)

On the Search Results page, verify the discount is applied. (Reminder: not all fare codes are eligible.)

Car Rental

Avis is the official car rental service for the ISTSS 34th Annual meeting.  An advanced reservation is recommended.  For online reservations visit the Avis booking link for ISTSS 34th Annual Meeting or call +1-800-331-1600 and indicate ISTSS Worldwide Discount number J991745, to receive special pricing. This discount will be effective from seven days prior to the event until seven days after the event.


On-site parking is available at the Washington Marriott Wardman Park for $45 USD. Valet parking is also available at a rate of $50 USD daily.

Weather and Meeting Attire

Washington, DC has an average high temperature of 76 degrees Fahrenheit in late May, with an average low temperature of 54 degrees Fahrenheit.  Attire for the conference is business casual.  Because meeting room temperatures sometimes fluctuate, attendees may wish to bring a sweater or jacket. 

Foreign Visas

Travelers attending the meeting from qualified countries to the United States for tourism or business for 90 days or less may be eligible to visit with United States without a visa.  Currently, 38 countries participate in the Visa Waiver Program (VWP).  Visitors entering on the VWP may not work or study while in the United States and may not stay longer than 90 days or change their status to another category.  Visitors entering on the VWP must have machine-readable passports.  Travelers without machine-readable passports will need to apply for a visa to enter the United States.  For more information about obtaining a visa, visit the US government website