Search Cheap Flights toSouthern Illinois
Search 400 airlines and 321,000 hotels worldwide.
Stop Planning & Start Exploring
FREE 24 hour cancellation on most flights
Southern Illinois Flights as Low as $56
Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.
Cheap Flights to Southern Illinois
Fall in love at first flight with your vacation to Southern 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 Southern Illinois on Hotwire, and you’ll be up, up, and on a getaway in no time.
Because once the wheels are down in Southern Illinois, the good times start rolling. So buckle up, you’re in for a fun ride.
Frequently Asked Questions About flights to Southern Illinois
Don’t waste your time on endless searches for cheap airline tickets oneway or roundtrip. We’ll have you on your way to Southern 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 Southern 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 Southern Illinois are in August, but when you book your flight on Hotwire, savings are always in season.
How many airlines fly to Southern 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 Southern Illinois.
What airport is best to fly into Southern Illinois?
When you’re planning your trip to Southern Illinois, convenience is the name of the game. Luckily, Southern Illinois Veterans Airport of Southern Illinois Airport is nearby so you can deplane and get going on checking off everything on your Southern Illinois must-do list.
How much are flights to Southern Illinois?
Got very cheap flights on your vacation itinerary? When you book your airline tickets to Southern Illinois on Hotwire, you may just get what’s on your getaway wish list. With tickets as low as $56, 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 Southern Illinois?
The trick to saving a stack of cash on your flight to Southern 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 $56 right now, why wait?
Destination airport | Lambert-St. Louis Intl. |
|---|---|
Destination airport IATA code | STL |
Roundtrip price | $121 |
Last Minute Hotel Deals in Southern Illinois
Drury Plaza Hotel Mt. Vernon
"Lovely!!! Easy check-in. Right off the highway and you can see McAlister’s, Panera & Starbucks right next door. Room was super clean such a peaceful evening, great sleep"
Reviewed on Jul 22, 2026
Drury Inn & Suites St. Louis Fairview Heights
"Decent breakfast. Nice afternoon snacks/drinks. Small bathroom. Lot's of pot smoke smell at all the exits. Beds/linens were OK. Overall it was OK."
Reviewed on Jul 22, 2026
Best Western St. Louis Fairview Heights
Drury Inn & Suites Marion
"Evening kickback and breakfast were great!"
Reviewed on Jul 20, 2026
Drury Inn & Suites St. Louis O'Fallon, IL
"Clean comfy rooms nice indoor/outdoor pool big enough for the Waltons hot tub very clean also! Didn’t get a chance for free drinks or food but it was available! In nice area with two really good restaurants walking distance recommend! A little pricey but worth it!!!!!"
Reviewed on Jul 21, 2026
Super 8 by Wyndham O'Fallon
Comfort Suites Fairview Heights - St. Louis
"Easy parking and friendly staff. There were bugs in the fridge but it was easily handled"
Reviewed on Jul 22, 2026
Motel 6 Caseyville, IL - Caseyville Il
"Good"
Reviewed on Jul 22, 2026
Nearby Cities
Popular Flight Routes
- Atlanta to New York
- Detroit to Las Vegas
- Dallas to Atlanta
- Dallas to Yosemite National Park
- Toronto to Edmonton
- Chicago to Tulum
- Houston to Lake Tahoe
- Chicago to Las Vegas
- Dallas to Miami
- Dallas to Lake Tahoe
- New York to Miami
- New York to Las Vegas
- Miami to Atlanta
- Minneapolis St Paul to Fort Walton Beach Destin
- Dallas to Branson
- Cleveland to Vero Beach
- Managua to Miami
- Atlanta to Boston
- Austin to Tulum
- Calgary to Vancouver