The AOS 2025 meeting will be held at the Hyatt Regency St. Louis at The Arch in St. Louis, Missouri. We have arranged for special rates for AOS 2025 meeting attendees. See our Transportation page (coming soon!) for information about air travel and ground transportation options available to you. Please see the section below on Accessibility needs.
Need a letter of invitation?
If you are a resident of a country outside of the United States and need a letter of invitation to the AOS 2025 conference for a travel visa application, please fill out our request form.
Please allow up to five business days for your request to be processed. Priority will be given to those presenting at the conference.
Money Exchange
Currency exchange is available at the St. Louis Lambert International Airport.
Hyatt Regency St. Louis at The Arch
AOS 2025 will be held at the Hyatt Regency St. Louis at The Arch overlooking the iconic Gateway Arch in downtown St. Louis, Missouri.
Hotel Address
Hyatt Regency St. Louis at The Arch
315 Chestnut Street St. Louis, Missouri, 63102 United States
Booking Code: G-BIRD
Booking rate valid for dates: Saturday, 9 August–Saturday, 16 August 2025.
BOOKING LINK: Book your accommodations for AOS 2025
Hotel Amenities
- Free Internet Access
- Pet Friendly
- In-Room Chromecast
- Concierge
- On-site Restaurant
- Digital Key
- Business Services
- Meeting Facilities
- Fitness Center
- Digital Check-In
- Laundry
- Accessible Rooms available on request
Hotel Room Options
KING BED — $169 (avg/per night)
Unwind in this contemporary 300-square-foot room with a king bed and cozy lounge area overlooking Downtown St. Louis. Stay productive at our convenient workstation and enjoy a deluxe bath featuring luxury brand toiletries.
Room Amenities
- 50” flat-screen TV
- Individual climate control
- Blackout curtains
- Hair dryer
- KenetMD bath toiletries
- Coffee maker
- Minifridge
- Iron and ironing board
- In-room safe
- Rollaway on request
- Crib on request
DOUBLE BED — $169 (avg/per night)
Retreat to this stylish room featuring 300 square feet and two double beds. Enjoy a cozy lounge seating area overlooking downtown St. Louis. Take advantage of a convenient workstation and deluxe amenities in a luxurious bath.
Room Amenities
- 50” flat-screen TV
- Individual climate control
- Blackout curtains
- Hair dryer
- KenetMD bath toiletries
- Coffee maker
- Minifridge
- Iron and ironing board
- In-room safe
- Rollaway on request
- Crib on request
Room Cost Sharing
If you’re looking for a roommate to share the cost of lodging at AOS 2025: In your conference registration confirmation email, we will provide a link to the meeting Slack channel in your confirmation email, where you can join the #room_ride_sharing channel to connect and coordinate with other conference registrants to try to find a roommate.
Hyatt Regency Cancellation Policy
Cancellations must be made by 11:59 p.m. hotel time two (2) days before arrival or pay one (1) night fee. Credit card required for booking.
Deposit Policy: Credit card guarantee required.
Accessibility
Accessible rooms are available upon request during booking. See the booking link for details.
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