Hotel Information

Hilton Orange County/Costa Mesa
3050 Bristol St.
Costa Mesa, California, USA 92626
Telephone: (714) 540-7000

The reservation link will be available soon.

Join us at the Hilton Orange County/Costa Mesa in Costa Mesa, Southern California, USA for Mass Spec Symposium 2025!

Reservations
A room block is reserved for Symposium delegates at the special group rate of $256 USD for a *single room (plus 7% occupancy tax). The deadline to reserve your accommodations will close August 15, 2025. The Bethesda North Marriott & Hotel Conference Center requires a credit card to guarantee your reservation.

After August 15, 2025, reservations will be accepted on a space and rate availability basis. We recommend that attendees book their hotel accommodations well before the deadline to secure this rate.

NOTE: Check-in time is 4:00 PM and check-out time is 11:00 AM.

Parking and Transportation

For local attendees that will drive to the Symposium, parking is available on-site for an additional fee. 

Attendees traveling by plane can utilize Ronald Reagan Washington National Airport (DCA, 18.2 miles away), Dulles International Airport (IAD, 25.0 miles away), or Baltimore/Washington International Thurgood Marshall Airport (BWI, 35.9 miles away). 

By staying at the host hotel, you help CASSS meet its contractual obligations and keep future registration fees reasonable. Please take this into consideration when making your accommodation decisions.

*Room types are not guaranteed and are based on availability when the individual reservation is made.