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Find Spa Hotels in St. Peters, MO from CA $218

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    Check prices for these dates, December 14–15, 2026

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    Our top choices for St. Peters hotels with a spa

    1. Ameristar Casino Resort and Spa

    A modern spa with a curved reception desk, a large mirror, and a decorative water feature.

    2. The Ritz-Carlton, St. Louis

    A modern kitchen with wooden cabinets, a central island, and framed artwork on the walls.

    Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

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    Choose what matters most at spa hotels in St. Peters

    Pool

    Breakfast included

    Hot tub

    4 stars

    5 stars

    Frequently Asked Questions

    How much does a spa hotel in St Peters cost?

    Enjoy staying in a spa hotel in St Peters, with plenty of hotels from CA $218 offering incredible amenities. If you're leaning toward a little luxury, prices can rise, and may vary depending on the location, season, and hotel amenities. Be sure to book in advance to enjoy more options and potentially better rates, especially if you're planning a trip during the weekend or around public holidays.

    Is it cheaper to book a spa hotel in St Peters with flights as part of a package deal?

    Booking a hotel and flight package on Expedia can be cheaper than booking flights and hotels separately. Bundling can lead to significant savings, especially for international travel or when booking well in advance. However, savings vary depending on factors like destination, travel dates, and availability, so it’s wise to compare options. With access to over 300,000 hotels worldwide, Expedia makes it easy to build the perfect travel package.

    Are there any unique spa experiences available in St Peters?

    Yes, St. Peters offers some unique spa experiences, particularly through facilities that combine luxury spa services with advanced medical and wellness treatments.


    Glow Spa at Ignite Medical Resorts provides a boutique resort experience that integrates advanced physical therapy and rehabilitation with luxury spa services. Guests can enjoy manicures, pedicures, massage therapies, and professional hair services within a 5-star hotel environment, complete with private suites and concierge services.


    Modern Functional Health Medical Spa specialises in laser hair removal, various skin treatments, and non-invasive aesthetic procedures. This facility is led by a board-certified doctor and utilises advanced technology for safe and personalised care.


    The Whole You Wellness Centre is another medspa offering a range of treatments including injectables, dermal fillers, facials, and IV hydration therapy, focusing on comprehensive wellness and aesthetic treatments.

    Can I cancel my spa hotel reservation on Expedia?

    Many Expedia hotel reservations are refundable, provided that you cancel before the hotel's cancellation deadline. This is often within 24-48 hours of your scheduled arrival. Be sure to check your booking confirmation for the exact cancellation policy. For maximum flexibility, use Expedia's "Fully refundable property" filter during your search to find the right spa hotel in St Peters for you.

    How can I save on a spa hotel in St. Peters with Expedia?

    Find St. Peters spa hotel deals by joining One Key™, Expedia’s free travel rewards program. As a member, you can unlock instant savings with Member Prices when you’re logged in. For a quick weekend retreat, discover last-minute offers.

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