Cheap Flights to Southwest Illinois from $20
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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 $38 and $20 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* |
|---|---|---|---|
| PGD | Mascoutah | October 15 to October 18 | $148 |
| DFW | St. Louis | November 12 to November 15 | $163 |
| DFW | Scott City | November 4 to November 8 | $223 |
| AUS | St. Louis | September 28 to September 30 | $225 |
| ORF | St. Louis | October 23 to October 26 | $261 |
| AUS | West Paducah | October 30 to November 1 | $304 |
| DFW | West Paducah | September 17 to September 20 | $308 |
| RSW | St. Louis | September 16 to September 21 | $317 |
| PVD | St. Louis | September 24 to September 26 | $339 |
| CLT | Marion | September 19 to September 21 | $378 |
| AUS | Marion | October 30 to November 1 | $484 |
| PVD | Scott City | October 3 to October 6 | $492 |
| CLE | West Paducah | October 14 to October 15 | $519 |
| CLT | Scott City | September 10 to September 14 | $524 |
| DCA | Scott City | September 12 to September 13 | $652 |
| Origin | Destination | Travel Dates | Flights From* |
|---|---|---|---|
| BNA | St. Louis | August 28 to August 31 | $225 |
| DCA | St. Louis | August 30 to August 31 | $345 |
| AUS | St. Louis | August 29 to August 30 | $351 |
| DAL | St. Louis | August 29 to September 25 | $366 |
| CLE | St. Louis | August 30 to September 1 | $372 |
| DFW | Scott City | August 30 to September 3 | $388 |
| CLT | St. Louis | August 30 to September 1 | $408 |
| ORF | St. Louis | August 28 to August 30 | $495 |
| PVD | St. Louis | August 28 to August 30 | $824 |
Southwest Illinois Flight Information
Traveling to | Southwest Illinois |
|---|---|
Lowest Price | $38 |
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
Super 8 by Wyndham Marion
Americas Best Value Inn West Frankfort
Super 8 by Wyndham Belleville St. Louis Area
Luxury Hotels in Southwest Illinois
Super 8 by Wyndham Troy IL/St. Louis Area
"Clean room and friendly staff. We only stayed for one night."
Reviewed on Aug 23, 2026
Super 8 by Wyndham Mt. Vernon IL
Super 8 by Wyndham Carbondale
Super 8 by Wyndham O'Fallon
"My stay was good and my room was clean"
Reviewed on Aug 24, 2026
Family Friendly Hotels in Southwest Illinois
Country Inn & Suites by Radisson, Marion, IL
"The check in process was amazing. I expect a little southern hospitality in this part of the state, but they went above and beyond making sure that we picked the right rooms. There was a band "hinder" playing a concert in te let next to the hotel, which was actually really cool, but she made sure ..."
Reviewed on Aug 24, 2026
Drury Plaza Hotel Mt. Vernon
"This was one of the best hotels I have stayed in. Staff was great and friendly. Food was great and room was clean and comfy."
Reviewed on Aug 24, 2026
Comfort Inn & Suites O'Fallon - St. Louis Area
Best Western Troy Hotel
"Currently under renovation but the renovated rooms on the 3rd floor look great! Room service was lacking especially if you stay multiple nights and request fresh towels and room service. Standard breakfast and suggest adding donuts, pastries, chocolate milk & honey condiment to the breakfast ..."
Reviewed on Aug 23, 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!