Comfortable Accommodations Holiday Inn Express Hotel & Suites St. Louis West-O'Fallon by IHG in O'Fallon offers air-conditioned rooms with private bathrooms, tea and coffee makers, and free WiFi. Each room includes a work desk, TV, and wardrobe. Leisure Facilities Guests can enjoy a fitness center and indoor swimming pool. Additional amenities include a lounge, fitness room, and outdoor seating area. Convenient Location Located 24 mi from St. Louis Lambert International Airport, the hotel is near attractions such as Hollywood Casino St. Louis (18 mi) and Six Flags Over Mid-America (23 mi). Guests appreciate the breakfast provided by the property and the value for money of the food.