Hotel Information

Hilton Orange County/Costa Mesa
3050 Bristol Street
Costa Mesa, CA 92626
Phone Number: +1-714-540-7000 
Toll Free Reservations:  800-HILTONS  (USA and Canada)
Reservation Fax: +1-714-438-4949
Online Reservations:
Fax: +1-714-540-9176 
Hilton Orange County/Costa Mesa Web Site

Hotel Reservation Deadline: Friday, January 26, 2007


The Hilton Orange County/Costa Mesa hotel is centrally located to all major points of interest in Orange County and Southern California. It offers convenient access to all major freeways, Orange County/John Wayne Airport and the world renown South Coast Plaza shopping resort. The Hilton Orange County/Costa Mesa hotel features the highly acclaimed Bristol Palms Restaurant and Bar set amidst towering palm trees in the hotel's naturally lit 7-story atrium. The Hilton Orange County/Costa Mesa hotel is 100% smoke free.

Did you know?
Your support in staying at the Hilton Orange County/Costa Mesa 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 the Hilton Orange County/Costa Mesa. 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 – Friday, January 26, 2007 (or until the room block is filled)

Single/Double       $135 per night plus 8% tax

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

Your reservation is not confirmed until acknowledged in writing by the hotel or verified by phone. 

When making reservations, be sure to identify yourself as an attendee of the SIAM Conference on Computational Science & Engineering. In order to get the SIAM group rate, please make your reservations via fax at +1-714-438-4949 or mail the Hotel Reservation Form directly to the Hilton Orange County/Costa Mesa.  You may also make your reservation by phone by calling 800-HILTONS  (USA and Canada) or +1-714-540-7000.

You may also make reservations online at 

Welcome Reception

When making your reservation, remember that the Welcome Reception is scheduled for Sunday, February 18.  This is an excellent networking opportunity!


The Hilton Orange County/Costa Mesa requires a credit card 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 24 hours prior to your arrival date in order to avoid a cancellation fee.  You can contact the hotel at 800-HILTONS (USA and Canada) or +1-714-540-7000.  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, sauna, and exercise room in the Hilton Orange County/Costa Mesa.

Telephone Messages

To reach an attendee or to leave a message, call +1-714-540-7000.  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.

Hotel Room Sharing Form

The hotel room sharing room now available.

Donate · Contact Us · Site Map · Join SIAM · My Account
Facebook Twitter Youtube linkedin google+