Search Cheap Flights toSouthwest Illinois
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Southwest Illinois Flights as Low as $58
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Cheap Flights to Southwest Illinois
Fall in love at first flight with your vacation to Southwest Illinois by saving a ton of cash on your last-minute cheap flight. There’s no more scouring the internet for a good deal—book your flight to Southwest Illinois on Hotwire, and you’ll be up, up, and on a getaway in no time.
Because once the wheels are down in Southwest Illinois, the good times start rolling. So buckle up, you’re in for a fun ride.
Frequently Asked Questions About flights to Southwest Illinois
Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Southwest Illinois with a tiny bag of pretzels in your hand before you can say “tray tables in the upright position”—and for a ticket price that works for your vacay budget.
So all you have to worry about is where you’re headed after the STL airport.
What is the cheapest month to fly to Southwest Illinois?
Airline ticket prices fluctuate all the time, depending on the day of the week or the month of the year. The cheapest round trip flights to Southwest Illinois are in February, but when you book your flight on Hotwire, savings are always in season.
How many airlines fly to Southwest Illinois?
Variety is the spice of life, even when it comes to booking your next trip. Want options for airlines? You’ll find 16 to choose from for your flight to Southwest Illinois.
What airport is best to fly into Southwest Illinois?
When you’re planning your trip to Southwest Illinois, convenience is the name of the game. Luckily, Southwest Illinois Williamson County Regional Airport is nearby so you can deplane and get going on checking off everything on your Southwest Illinois must-do list.
How much are flights to Southwest Illinois?
Got very cheap flights on your vacation itinerary? When you book your airline tickets to Southwest Illinois on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $58, you’ll have leftover cash for at least a magazine and a bottle of water at the airport book store.
How to get cheap flights to Southwest Illinois?
The trick to saving a stack of cash on your flight to Southwest Illinois? Snatch up that Hotwire flight deal when you see a killer rate because it could be gone in a flash. And with flights as low as $58 right now, why wait?
Destination airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport IATA code | STL |
Roundtrip price | $305 |
Last Minute Hotel Deals in Southwest Illinois
Drury Plaza Hotel Mt. Vernon
Courteous staff. Great onsite meals
Reviewed on Jan 22, 2026
Drury Inn & Suites St. Louis Fairview Heights
All was good. Breakfast especially at 100%.
Reviewed on Jan 22, 2026
Super 8 by Wyndham O'Fallon
The staff was very friendly and the room looked fantastic
Reviewed on Jan 6, 2026
Comfort Suites Mount Vernon
Spotless and clean
Reviewed on Jan 27, 2026
La Quinta Inn & Suites by Wyndham Collinsville - St. Louis
The room seemed claen. The bed was great, everything was great. Except for the shower, when they did a remodel they made the shower door slide the wrong way. There is zero chance of turning the water on without getting blast of cold sprayed on you! So that made me think, i see the cleaners in the ...
Reviewed on Jan 12, 2026
Drury Inn & Suites Marion
The hotel was one of the cleanest I have been in! We enjoyed the breakfast and the evening meal.
Reviewed on Jan 25, 2026
Drury Inn & Suites St. Louis O'Fallon, IL
The staff and was friendly and so helpful
Reviewed on Jan 22, 2026
Quality Inn O'Fallon IL - St. Louis
Great place to stay, very helpful ataff!
Reviewed on Jan 17, 2026
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