From our exclusive offers to our rewards program and member prices, you’ll save when you book your rental with Expedia. Check out what’s available at St. Louis, MO (STL-Lambert-St. Louis Intl.) and then choose your perfect ride. But we don’t just offer amazing rates on rental vehicles. Hotels, flights and more can be added to your itinerary to create a personalized vacation package. The more you bundle, the bigger the savings!