Hotel Information

Hilton Portland & Executive Tower
921 SW Sixth Avenue
Portland, Oregon, 97204, USA
Phone Number: +1-503-226-1611
Toll Free Reservations (USA and Canada): 1-800-445-8667
Fax: +1-503-220-2286
Hotel web address:

Group Rate Online Reservations ($119 $139)  - Reference group block code “IAM” The group rate rooms in the main building are sold out. Rooms are available in the Executive Tower (located across the street from the main building) at the rate of $139 per night.

Student Rate Online Reservations ($89)  - Student ID Required. Reference group block code “IA1” The student rate rooms are sold out.

Hotel Reservation Deadline: Monday, December 2, 2013


The Hilton Portland & Executive Tower consists of two buildings: the landmark Hilton Portland and the elegant Executive Tower. Situated in the heart of downtown, this hotel is surrounded by restaurants, tax-free shopping and entertainment venues. Walk a block from the hotel to the MAX Light Rail system for quick and easy access to popular Portland attractions, nearby cities, and Portland International Airport.
Stay active with complimentary access to the Hilton Athletic Club at Hilton Portland’s main building. Work out using modern equipment in the exercise and yoga room, unwind in the steam room and sauna or freshen your tan. The athletic club also offers personal training and an indoor saline pool. Dine on classic American cuisine with family and friends in the casual Bistro 921 restaurant and consider hosting an event in the hotel's top floor event space.
Guests of the Executive Tower can maintain their exercise routines at the complimentary fitness center with a waveless indoor pool. Savor Northern Italian cuisine created with the finest Northwestern ingredients at Porto Terra Tuscan Bar & Grill. Order a night cap in the trendy Porto Terra Lounge.

Both Hilton Portland and the Executive Tower are Green Seal Certified and pet-friendly. Each provides Concierge services, in-room dining, and complimentary WiFi in the lobby and at self-service work stations.

Did you know?

Your support in staying at the Hilton Portland & Executive Tower helps keep the conference costs down, which directly affects your registration fees. SIAM guarantees the hotel that we will fill a certain number of “room nights” (rooms per night) during the conference.  SIAM incurs penalties if too many attendees opt to stay in other hotels in the area or neglect to indicate to the hotel that they are with the SIAM conference. At this time, conference costs do not include meeting room rental. If SIAM fails to fill the contracted room block, SIAM is then charged the cost for the meeting rooms on a daily basis, along with a hefty penalty. Future registration fees could increase to cover these additional risks.


SIAM is holding a block of rooms at Hilton Portland & Executive Tower . These rooms are being held on a first-come, first-served basis at the following discounted rates. Please be aware the room block fills quickly, so we suggest you make your hotel and travel plans early.

The group rate is guaranteed until the cutoff date unless the block fills prior to that.  If there are rooms available after the cutoff date, they will be available at the best rate offered at that time.

Reservation Deadline – December 2, 2013 (or until the room block is filled)

Single/Double             $$119 $139 per night plus 14.50% tax
The group rate rooms in the main building are sold out. Rooms are available in the Executive Tower (located across the street from the main building) at the rate of $139 per night.
Student rate                $89.00 per night plus 14.50% tax
Student ID must be presented upon check-in. SIAM is able to negotiate a limited number of special student rate rooms. Please book early as these rooms sell out quickly!
The student rate rooms are sold out.

All rooms based on availability.
All rates are subject to state and local occupancy taxes.

In the event that you find a lower room rate, please make the reservation at the lower rate and notify SIAM immediately ([email protected]). By doing this you will receive the lower rate and be counted towards the SIAM room block.

Reservations are not confirmed until acknowledged in writing by the hotel or verified by phone.  Be sure to get a confirmation number from the hotel and be prepared to provide that number to the front desk clerk upon check-in at the hotel.  If hotel reservations are requested by facsimile and written confirmation is not received within two weeks of sending the facsimile, please contact the hotel immediately to verify that the reservation request was received and processed.  Be sure to get a confirmation number.

When making reservations, be sure to identify yourself as an attendee of the ACM-SIAM Symposium on Discrete Algorithms (SODA14). In order to receive the SIAM group rate, please make your reservations via fax at +1-503-220-2286 or mail the Hotel Reservation Form directly to the Hilton Portland & Executive Tower.  You may also make your reservation by phone by calling 1-800-445-8667 (USA and Canada) or +1-503-226-1611. Reservations may also be made online using the Online Reservation links at the top of this page. Attendees should reference group block code “IAM” when making reservations at the group rate of $119. Students should reference the group rate “IA1” to acquire the student rate of $89. Student ID must be presented upon check-in. Remember to get your confirmation number.


Welcome Reception

When making your reservation, remember that the Welcome Reception is scheduled for Saturday, January 4, 2014.  This is an excellent networking opportunity!



The Hilton Portland & Executive Tower requires a credit card and payment for one night plus applicable taxes to confirm and guarantee your reservation. The hotel will send out e-mail confirmations upon request.



If you need to change or cancel your reservation, you must contact the hotel by 6:00 PM on the day prior to the scheduled arrival date to avoid a cancellation fee.  You can contact the hotel at 1-800-445-8667 (USA and Canada) or +1-503-226-1611.  Remember to get a cancellation number!


Check-In and Check-Out

Check-in time is 3:00 PM and check-out time is 12:00 PM.



Posted rates apply.


Health Facilities

Hotel guests will have complimentary use of the fitness center and pools in the Hilton Portland & Executive Tower.


Telephone Messages

To reach an attendee or to leave a message, call +1-503-226-1611.  The hotel operator can either connect you with the SIAM registration desk or to the attendee’s room.  Messages taken at the SIAM registration desk will be posted to the message board located in the registration area.


Hotel Room Reservation Form

The hotel reservation form is now available here.


Hotel Room Sharing Form

The hotel room sharing form is available here.

To RSVP to the conference on Facebook and connect with other attendees, find roommates etc., please visit

If you are tweeting about the conference, please use the designated hashtag to enable other attendees to keep up with the Twitter conversation and to allow better archiving of our conference discussions.  The hashtag for this meeting is #SIAMDA14.

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