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Southern Illinois

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Southern Illinois Flights as Low as $141

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Contour Airlines
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American Airlines
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United
Frontier Airlines
Delta
Frontier Airlines
United
American Airlines

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 April, 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 $141, 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 $141 right now, why wait?

Southern Illinois Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$67

Last Minute Hotel Deals in Southern Illinois

Drury Inn & Suites St. Louis Fairview Heights

Drury Inn & Suites St. Louis Fairview Heights

3 out of 5
12 Ludwig Dr Fairview Heights IL
Book a stay at this business-friendly hotel in Fairview Heights. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
9.2/10 Wonderful! (1,000 reviews)
We had a great stay. The breakfast and supper were both great and it's nice that it is included with the stay. Also, unlimited coffee and soft drinks was nice. Every evening they have popcorn and my kids loved it. Staff were friendly and housekeeping came by everyday to restock towels and washrags. ...

Reviewed on Mar 19, 2026

Drury Inn & Suites St. Louis Fairview Heights
Best Western Delta Inn

Best Western Delta Inn

2.5 out of 5
1509 Hampton Dr Effingham IL
Book a stay at this business-friendly hotel in Effingham. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
9.2/10 Wonderful! (1,000 reviews)
No complaints, worked out perfectly for the weekend.

Reviewed on Mar 18, 2026

Best Western Delta Inn
Drury Inn & Suites St. Louis O'Fallon, IL

Drury Inn & Suites St. Louis O'Fallon, IL

3 out of 5
1118 Central Park Drive O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9.6/10 Exceptional! (1,002 reviews)
We stayed in a one bedroom suite, and the space was phenomenal!! (Especially traveling with a baby.) The shower was always warm and pressure good. Beds and pillows comfortable. We enjoyed the breakfast Buffett!

Reviewed on Mar 18, 2026

Drury Inn & Suites St. Louis O'Fallon, IL
Drury Plaza Hotel Mt. Vernon

Drury Plaza Hotel Mt. Vernon

3 out of 5
145 North 44th Street  Mount Vernon IL
Book a stay at this business-friendly hotel in Mount Vernon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
9.6/10 Exceptional! (1,654 reviews)
It was a brief stay but everything was good. Very busy as I believe the front desk said they were full the night we stayed. Newly renovated and nice. Very good breakfast.

Reviewed on Mar 18, 2026

Drury Plaza Hotel Mt. Vernon
Comfort Suites Mount Vernon

Comfort Suites Mount Vernon

2.5 out of 5
404 South 44th Street Mount Vernon IL
Book a stay at this business-friendly hotel in Mount Vernon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful ...
9/10 Wonderful! (1,002 reviews)
Spacious room, clean, great hospitality

Reviewed on Mar 17, 2026

Comfort Suites Mount Vernon
Super 8 by Wyndham O'Fallon

Super 8 by Wyndham O'Fallon

2 out of 5
1100 Eastgate Dr O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7/10 Good! (1,001 reviews)
They had bedbugs and the staff did not give us our refund back on my card and are dodging us... also there was a domestic dispuse outside when we arrived in the evening. We did not stay the night.

Reviewed on Mar 16, 2026

Super 8 by Wyndham O'Fallon
Comfort Suites Fairview Heights - St. Louis

Comfort Suites Fairview Heights - St. Louis

2.5 out of 5
137 Ludwig Dr Fairview Heights IL
Book a stay at this business-friendly hotel in Fairview Heights. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our ...
6.6/10 (1,001 reviews)
Room was good and breakfast satisfactory. The only reason for not giving a higher rating was due to pool heater broken for duration of our stay.

Reviewed on Mar 18, 2026

Comfort Suites Fairview Heights - St. Louis
Baymont by Wyndham Effingham

Baymont by Wyndham Effingham

2.5 out of 5
1811 W Fayette Avenue Effingham IL
Book a stay at this business-friendly hotel in Effingham. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
8/10 Very Good! (1,001 reviews)
Cleans rooms

Reviewed on Mar 13, 2026

Baymont by Wyndham Effingham
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.