Southwest Illinois Vacations from $548

A Southwest Illinois vacation package in O'Fallon lets you combine flights, hotel stays, and rental cars. Most hotels in O'Fallon offer free breakfast, and some also provide airport shuttle service to St. Louis Lambert International Airport (STL). Exactly what's included will vary by hotel and package, so it's worth reviewing the details before you confirm your booking.

When you bundle, you can save up to 30%*. To save money on a Southwest Illinois package, consider traveling during the quieter months or be flexible with your dates to find more options. Bundling your flights and hotel together often unlocks savings compared to booking separately. *Members only. Savings vary.

When planning a Southwest Illinois vacation, consider these destinations as your base, each offering a distinct travel style:

• Marion: A top choice for romantic getaways and outdoor adventures, known for its scenic views and a good selection of lodging.
• Carbondale: Ideal for travelers seeking romantic trips and active outdoor experiences, with many options for adventure activities.
• O'Fallon: Best suited for families and those interested in urban attractions, also offering outdoor activities and eco-friendly travel options.
• Edwardsville: A great base for family-friendly attractions and romantic escapes, combining outdoor activities with scenic surroundings.

Southwest Illinois is primarily an outdoor and nature destination, known for its scenic views and adventure activities. Travelers can enjoy a wide range of outdoor pursuits, from exploring the waters of Lake of Egypt in Marion to hiking the unique geological formations at Giant City State Park near Carbondale.


The region does offer cultural and historical experiences. Visitors can delve into ancient history at Cahokia Mounds State Historic Site near O'Fallon or enjoy local arts and events at the Marion Cultural and Civic Center. Your Southwest Illinois vacation can be customized around these diverse activities.

For a Southwest Illinois vacation, St. Louis Lambert International Airport (STL) in St. Louis, Missouri, serves as the primary gateway. Another convenient option is Evansville Regional Airport (EVV) in Evansville, Indiana. Both airports serve the wider Southwest Illinois region, with onward travel to your specific destination.

A Southwest Illinois vacation is best explored from a base like Marion, which offers a variety of outdoor activities and scenic views:


Browse and book things to do in Southwest Illinois on Expedia.

Yes, you can cancel your vacation package via your itinerary page on Expedia or by contacting customer service. Remember that some packages are fully refundable, but the details vary based on each unique booking. A fully refundable package may depend on how far out from the travel dates you're canceling and what airline you are traveling with.

Yes, members who join our free One Key™ travel rewards program can instantly unlock additional savings and save 10% or more on over 500,000 stays worldwide with Member Prices and over 1 million car rentals.

Yes, with Expedia's Book Now, Pay Later option, powered by Affirm, you can spread the cost of your Southwest Illinois vacation over 3, 6, or 12 months. With no late payment fees or hidden costs, it's easy to secure your ideal vacation package as soon as you spot it.

To find last-minute vacation packages to Southwest Illinois, explore the last-minute deals section for the latest package offers, including flights, departing in the coming weeks. Being flexible with your travel dates and hotel preferences can help you secure the best prices.

Free cancellation on a Southwest Illinois vacation package depends on the specific hotel and rate combination you book. Many bookings allow free cancellation up to a stated deadline (often a few days before travel) where eligible. Read the cancellation terms carefully when reviewing the package, and visit Expedia help center for further details.

An Expedia vacation package could land you great savings when compared to arranging flights and hotels separately. Better still, you can tailor your Southwest Illinois getaway to match your exact preference. Pick your preferred flight time, select the hotel type and add a car rental. Explore our bundles to see how much you can save.

Booking your vacation package on Expedia makes it easier to get more out of your trip from the start. With a wide choice of hotels, you can compare prices, reviews and amenities all in one place, then bundle your hotel with flights which could help you save even more. Flexible booking options on selected stays also make it easier to plan with confidence.