Cheap Flights to Southwest Illinois from $28
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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 $56 and $28 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 | February 21 to February 28 | $56 |
| AUS | St. Louis | February 18 to February 21 | $128 |
| JFK | St. Louis | February 23 to February 24 | $157 |
| LGA | St. Louis | April 7 to April 7 | $160 |
| FLL | St. Louis | March 9 to March 16 | $165 |
| LGA | West Paducah | February 26 to March 2 | $276 |
| YKF | St. Louis | February 14 to February 22 | $407 |
| EWN | St. Louis | February 20 to February 23 | $446 |
| DEN | West Paducah | February 13 to February 18 | $459 |
| STL | Marion | March 13 to March 20 | $1,034 |
| DEN | Scott City | March 5 to March 8 | $4,695 |
| Origin | Destination | Travel Dates | Flights From* |
|---|---|---|---|
| DEN | St. Louis | January 31 to February 7 | $69 |
| AUS | St. Louis | January 31 to February 5 | $161 |
| JFK | St. Louis | January 31 to February 10 | $175 |
| LGA | St. Louis | January 30 to February 2 | $218 |
| FLL | St. Louis | February 1 to February 3 | $465 |
| EWN | St. Louis | January 30 to February 8 | $554 |
Southwest Illinois Flight Information
Traveling to | Southwest Illinois |
|---|---|
Lowest Price | $56 |
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
Exceptionally clean laundry room
Reviewed on Dec 26, 2025
Super 8 by Wyndham Marion
Old but clean and comfortable. Heating unit a little too noisy.
Reviewed on Jan 3, 2026
Americas Best Value Inn West Frankfort
Staff was very nice and professional. Room was clean, bed was comfortable. There was a bit of cigarette smell, but would stay again.
Reviewed on Nov 8, 2025
Super 8 by Wyndham Belleville St. Louis Area
Clean room, great staff
Reviewed on Jan 18, 2026
Luxury Hotels in Southwest Illinois
Super 8 by Wyndham Troy IL/St. Louis Area
Fast easy going people
Reviewed on Jan 13, 2026
Super 8 by Wyndham Mt. Vernon IL
Clean bed, comfortable bed good staff
Reviewed on Jan 20, 2026
Super 8 by Wyndham Carbondale
A good value for the price. The hotel is a bit worn and the amenities are rather minimal, but the staff were friendly and the room and bed were comfortable.
Reviewed on Jan 14, 2026
Super 8 by Wyndham O'Fallon
The staff was very friendly and the room looked fantastic
Reviewed on Jan 6, 2026
Family Friendly Hotels in Southwest Illinois
Country Inn & Suites by Radisson, Marion, IL
Good breakfast - all the basics. Room was clean and spacious. Parking was convenient.
Reviewed on Jan 20, 2026
Drury Plaza Hotel Mt. Vernon
Courteous staff. Great onsite meals
Reviewed on Jan 22, 2026
Comfort Inn & Suites O'Fallon - St. Louis Area
Room was clean. One bed had a “divot” — asked for a solution, but nothing was done.
Reviewed on Jan 11, 2026
Best Western Troy Hotel
Rooms were as expected and clean.
Reviewed on Jan 3, 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!