Cheap Flights to Southwest Illinois from $29
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How Much Does it Cost To Fly To Southwest Illinois?
The cheapest prices found with in the last 7 days for return flights were $121 and $29 for one-way flights to Southwest Illinois for the period specified. Prices and availability are subject to change. Additional terms apply
| Origin | Destination | Travel Dates | Flights From* |
|---|---|---|---|
| DEN | St. Louis | August 4 to August 11 | $197 |
| AUS | St. Louis | September 19 to September 22 | $209 |
| FLL | St. Louis | August 13 to August 18 | $228 |
| LGA | St. Louis | October 10 to October 13 | $232 |
| AUS | West Paducah | August 13 to August 16 | $301 |
| JFK | St. Louis | August 18 to August 19 | $302 |
| EWN | St. Louis | September 2 to September 7 | $448 |
| AUS | Scott City | September 22 to September 24 | $461 |
| JFK | Scott City | August 15 to August 21 | $492 |
| JFK | Marion | July 15 to July 17 | $498 |
| FLL | Marion | July 16 to July 23 | $508 |
| DEN | Marion | July 20 to August 3 | $583 |
| FLL | Scott City | August 8 to August 14 | $588 |
| FLL | West Paducah | July 20 to July 23 | $746 |
| STL | Marion | August 19 to August 23 | $1,354 |
Southwest Illinois Flight Information
Traveling to | Southwest Illinois |
|---|---|
Lowest Price | $121 |
Number of Airlines Serving | |
Airlines Serving | Frontier Airlines |
Number of Daily Flights | |
Airlines with Direct Flights |
Find The Perfect Hotel For After Your Flight
Amazing Southwest Illinois Accommodation Deals
Motel 6 Caseyville, IL - Caseyville Il
"This is not the newest Motel 6, but it is well maintained. For the price, it is a good stay."
Reviewed on Jul 1, 2026
Super 8 by Wyndham Marion
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Reviewed on Jul 5, 2026
Americas Best Value Inn West Frankfort
"The room was comfortable, but the bathroom could use some updating and be cleaned more thoroughly. The A/C was ok as it kept turning on and off a lot and was noisy. The breakfast choices was wonderful. Fresh fruit, yogurts, danishes, bagels with cream cheese, chicken and biscuits sandwiches, OJ, ..."
Reviewed on Jul 5, 2026
Super 8 by Wyndham Belleville St. Louis Area
"I liked the inviting nature of the place, its very well maintained with all the plants that adore the building! Im here for business so pretty much work from sunrise to sunset, so I dont get out much but from what I've seen impressed"
Reviewed on Jul 3, 2026
Luxury Hotels in Southwest Illinois
Super 8 by Wyndham Troy IL/St. Louis Area
"Best Super 8 I have seen in years."
Reviewed on Jul 4, 2026
Super 8 by Wyndham Mt. Vernon IL
"Would not recommend. This hotel was over priced for what it is. Sheets had stains, furniture was falling apart, carpet was sticky, etc. Breakfast was very basic."
Reviewed on Jul 5, 2026
Super 8 by Wyndham Carbondale
"First room had a musky smell. I was moved without issue."
Reviewed on Jul 1, 2026
Super 8 by Wyndham O'Fallon
"Good"
Reviewed on Jul 4, 2026
Family Friendly Hotels in Southwest Illinois
Country Inn & Suites by Radisson, Marion, IL
"All was great! The front desk person at check in was not very welcoming."
Reviewed on Jun 30, 2026
Drury Plaza Hotel Mt. Vernon
"Convenient to interstate, clean room, and breakfast was great."
Reviewed on Jul 6, 2026
Comfort Inn & Suites O'Fallon - St. Louis Area
"Needs updating but not bad for an overnight stay nothing fancy"
Reviewed on Jul 1, 2026
Best Western Troy Hotel
"I rarely leave negative reviews, but this stay was extremely disappointing from start to finish. The hotel was dirty throughout, with cleanliness clearly not being a priority. The elevator was noticeably unclean and unpleasant to use. The entire property had an unpleasant odor that made it uncomfortable ..."
Reviewed on Jul 5, 2026
Best Southwest Illinois Flight and Hotel Packages
Southwest Illinois flight + hotel packages - economy flights
Need a Car For After Your Flight?
Economy
Compact
Midsize
SUV
Frequently asked questions
Plane Tickets To Southwest Illinois
Although you may try and resist the urge, you know that when the travel bug comes, there is only one way to get rid of it. Thankfully, Travelocity is here to help nip that travel bug in the bud with great deals on flights to Southwest Illinois. Browse through our inventory to explore a wide range of cheap flights to Southwest Illinois to solidify your next big trip out of town. Whether you are heading out on a business trip, exploring a place you have never been for pleasure or are bringing the family on the annual vacation, we have the perfect getaway waiting for you. In no time, you will be day dreaming of your plane landing in Southwest Illinois as you anxiously await to exit the plane and explore what Southwest Illinois has to offer. Considering all the amazing local food and culture in Southwest Illinois, we won't hold this against you.
When you are ready to embark on your next big adventure, Travelocity will be right here waiting to open the doors to the garden so that you can go and smell the roses. When you decide to book and travel is entirely up to you, but don't wait too long because we have some of the best deals on the web and they won't last long. Take time to go through our huge selection of cheap flights to Southwest Illinois to find the best deals that fit into your budget. If browsing on your phone while your boss isn't looking is more your thing (we promise we won't tell), consider checking out Travelocity's mobile app which allows you to take advantage of all our flights to Southwest Illinois without having to compromise your work computer's search history. If you are looking to save even more, you can easily save up to $537 when you bundle one of our cheap flights to Southwest Illinois with one of our hotels. So why are you waiting around? There is no better time than now to start booking that next trip. Start your search now to book one of our flights to Southwest Illinois today!