Hotel Information

Omni William Penn Hotel
530 William Penn Place
Pittsburgh, Pennsylvania 15219
Phone: +1-412-281-7100
Toll free Reservations (USA and Canada): +1-800-THE-OMNI
Hotel web address:
Group Room Rate: $179
Online Group Reservations:

Hotel Reservation Deadline: June 12, 2017

The Omni William Penn Hotel is located four blocks from the David L. Lawrence Convention Center. SIAM Annual Meeting (AN17), SIAM Conference on Control and Its Applications (CT17), SIAM Conference on Industrial and Applied Geometry (GD17) , and SIAM Workshop on Network Science (NS17) will take place at the DLCC.

Workshop participants also attending the 2017 SIAM Annual Meeting may want to review additional housing options at the Westin Convention Center Hotel. The Westin Convention Center Hotel is connected by a skywalk to the David L. Lawrence Convention Center, where all other SIAM sessions and associated events will take place. Please visit the Annual Meeting website for more information:

SIAM does not share or distribute personal, registration or housing details with any company or person. Improper solicitation of hotel reservations is not approved by SIAM, and any claim SIAM has provided attendee contact information for solicitation is fraudulent. Reservations offered by unaffiliated organizations may promise lower rates, however, they may be illegitimate, nonexistent, non-refundable, or have unreasonable cancellation or change penalties.  Please be aware of, and report any unauthorized solicitation to [email protected].


History defines elegance in this classic, downtown Pittsburgh hotel. Since opening the doors in 1916, Omni William Penn Hotel has played a starring role in the city of Pittsburgh, hosting movie stars, politicians, heads of state and leaders of business and industry. A recent multi-million dollar renovation has only enhanced the beauty of this luxury hotel to ensure that generations to come will enjoy the outstanding service, guest room accommodations and award-winning cuisine that have defined Omni William Penn Hotel for decades. We invite you to become part of our history as well, and join us as our guest.

Omni William Penn Hotel is just 18 miles from Pittsburgh International Airport and 11 miles from Allegheny County Airport.


Did you know?

Your support in staying at the Omni William Penn Hotel helps keep the workshop 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 workshop. 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 workshop. At this time, workshop 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 the Omni William Penn Hotel. 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 or until the room block is full.  If rooms are available after the cutoff date, they will be offered at the best available rate.

Reservation Deadline – June 12, 2017 (or until the room block is filled)

Single/Double $179 per night plus 14% tax
Student rate   not available for this workshop

Room rates include complimentary Internet access in all guestrooms and the lobby of the hotel.
All rooms based on availability.
All rates are subject to state and local occupancy taxes.
* Additional fees of $20 per person apply to triple and quad occupancy.

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. However, please be aware by booking outside the SIAM room block at a lower rate, you may not receive the same benefits as rooms reserved in the SIAM room block (i.e complimentary Internet access).

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 e-mail and written confirmation is not received within two weeks, please contact the hotel immediately to verify the reservation request was received and processed.  Be sure to get a confirmation number.

When making reservations, be sure to identify yourself as a SIAM attendee. In order to receive the SIAM group rate, please make your reservations using the above group reservation link, by phone by calling +1-800-THE-OMNI (USA and Canada) or +1-412-281-7100, or by e-mailing Mamuyan Jones at [email protected] with a copy of your hotel reservation form. Once you have submitted your hotel reservation form, please call +1-800-THE OMNI (843-6664) to confirm your payment information as this information cannot be communicated via e-mail.

Do not make your reservation online using the hotel’s general web site, as this will not allow you to obtain the SIAM group rate. Be sure to use the group link if making reservations online. Remember to get your confirmation number!



If you need to change or cancel your reservation, you must contact the hotel 72 hours prior to your check-in date by 12:00 noon local hotel time to avoid a cancellation fee. You can contact the hotel at 1-800-THE-OMNI (USA and Canada) or +1-412-281-7100. 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.



The Omni William Penn Hotel requires a credit card to confirm and guarantee your reservation. The hotel will send out e-mail confirmations upon request.


Welcome Reception

When making your reservation, remember that the 2017 SIAM Annual Meeting Welcome Reception is scheduled for Sunday, July 9, 2017. SIAM Workshop on Parameter Space Dimension Reduction (DR17) attendees are welcome to join. This is an excellent networking opportunity! The Welcome Reception will take place in The David L. Lawrence Convention Center (DLCC).


Health Facilities

Hotel guests will have complimentary use of the fitness center in the Omni William Penn Hotel.



Posted rates apply.


Telephone Messages

The hotel operator can be reached at +1-412-281-7100. Telephone messages can be left in guest rooms for guests staying in the hotel.


Hotel Room Reservation Form

The hotel reservation form is now available here.


Hotel Room Sharing Form

The hotel room sharing form is available here.


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