CT23 Hotel & Transportation Information | SIAM

Hotel and Transportation Information

SIAM Conference on Control and Its Applications (CT23)

Hotel & Transportation Information

Hotel Reservation Deadline

Hotel Reservation Deadline

June 26, 2023



Sonesta Philadelphia Rittenhouse Square Hotel

1800 Market Street Philadelphia, PA 19103 U.S.
Phone: +1-215-561-7500
Toll free Reservations (USA and Canada): 800-766-3782

Government Rate
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Welcome Reception
When making your hotel reservation, remember the Welcome Reception is scheduled for Sunday, July 23. This is an excellent networking opportunity!

Other Hotels


Conference Location

Sonesta Philadelphia Rittenhouse Square Hotel
1800 Market Street Philadelphia, PA 19103 U.S.
Phone: +1-215-561-7500
Toll Free Phone: 800-766-3782


The hotel offers valet parking only. SIAM attendees will receive a 25% discount off posted fees.

Transportation Information

Additional Information

Hotel Location

Explore the comfort and fresh, contemporary vibe at Sonesta Philadelphia Downtown Rittenhouse Square. A premier choice among hotels in Philadelphia, enjoy spacious, modern accommodations and luxurious amenities while staying in the heart of downtown and only steps away from Rittenhouse Square. Relax and retreat in spacious accommodations. Treat yourself to daily Grab N Go breakfast or evening cocktail at ArtBar. Wander through the Lobby Art featuring the finest local artists around the city. With AAA 3 Diamond rating, stay artfully with casual sophistication, impeccable service and delightful added touches. The hotel looks forward to welcoming you to the City of Brotherly Love!

Did you know?

Your support in staying at the Sonesta Philadelphia Rittenhouse Square Hotel 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 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 Sonesta Philadelphia Rittenhouse Square 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 5:00 p.m. Eastern Time on June 26, 2023, 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 26, 2023 (or until the room block is filled)

Single/Double Room Rate*               $179 per night plus 16.36% tax
Government Rate                              $166 per night plus 16.36% tax
Student Rate                                      $135 per night plus 16.36% tax - Student rate rooms are SOLD OUT.
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!

Room rates include complimentary internet access.
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).

To receive the SIAM rate, please make your reservations using the appropriate online reservation link or by calling the hotel directly and identifying yourself as a SIAM attendee:
Toll Free Reservations (U.S. and Canada): 800-766-3782
Direct Telephone Number: +1-215-561-7500

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

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 you need to change or cancel your reservation, you must contact the hotel prior to 6:00 p.m. on the scheduled arrival date to avoid a cancellation fee. You can contact the hotel at 800-766-3782 (U.S. and Canada) or +1-215-561-7500. Remember to get a cancellation number!

Check-In and Check-Out

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

Early Departure

The hotel may charge an early departure fee if an attendee checks out prior to the original checkout date. Attendees are responsible for informing the hotel of reservation changes as soon as possible, and should confirm their scheduled departure date when checking into the hotel.


The Sonesta Philadelphia Rittenhouse Square Hotel requires a credit card to confirm and guarantee your reservation. The hotel will send out e-mail confirmations upon request.

Transportation Information

By Air
Attendees should make reservations directly with their preferred airline, travel agency or travel website.

Ground Transportation

Public Transportation from Airport
Taxis are available at the airport for transportation to the hotel. Please visit the Sonesta Philadelphia Rittenhouse Square Hotel website and click on “What’s Nearby” to find local directions. Additional ground transportation information is available on the Philadelphia International Airport website.

By Train
Amtrak has a rail station in Philadelphia. To make train reservations through Amtrak, call (800) USA-RAIL, go to http://www.amtrak.com . Taxis are available at the train station for transportation to the hotel.

Rental Cars
Many major car rental companies have offices inside the airport terminal. You can make your arrangements when you arrive at the airport, or you can make them through your own travel agency or travel website.

Driving Directions
When using a phone or car GPS system for directions, SIAM highly recommends you contact the hotel directly or visit their website for driving directions. In many cases, the street address of the building and the address required for the GPS are different.