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Southern Illinois

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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 , 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  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 Williamson County Regional 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 , 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  right now, why wait?

Southern Illinois Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$748

Last Minute Hotel Deals in Southern Illinois

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! (1,579 reviews)
Drury provides the most value of any motel I have stayed in. Will stay at this one again.

Reviewed on Dec 16, 2025

Drury Plaza Hotel Mt. Vernon
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 ...
9/10 Wonderful! (1,001 reviews)
I always stay at Drury whenever I can, you can always count on having a great stay! Clean rooms, complimentary cocktails, Hot breakfast, AND complimentary hors d’oeuvres!!

Reviewed on Dec 13, 2025

Drury Inn & Suites St. Louis Fairview Heights
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! (1,000 reviews)
Room could’ve been cleaner but friendly staff

Reviewed on Dec 11, 2025

Super 8 by Wyndham O'Fallon
Drury Inn & Suites Marion

Drury Inn & Suites Marion

3 out of 5
2706 W DeYoung St Marion IL
Book a stay at this business-friendly hotel in Marion. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9.4/10 Exceptional! (1,008 reviews)
Clean room, good food

Reviewed on Dec 16, 2025

Drury Inn & Suites Marion
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 ...
8.8/10 Excellent! (1,013 reviews)
We've stayed here numerous times and the staff is always courteous and professional. The rooms are clean and spacious.

Reviewed on Dec 15, 2025

Comfort Suites Mount Vernon
Best Western Plus Pontoon Beach

Best Western Plus Pontoon Beach

3 out of 5
4 Regency Pkwy Granite City IL
Book a stay at this business-friendly hotel in Granite City. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff in our reviews. ...
8.4/10 Very Good! (802 reviews)
Value

Reviewed on Dec 6, 2025

Best Western Plus Pontoon Beach
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 ...
9.4/10 Exceptional! (1,001 reviews)
We stayed in July and we had a great visit! Very clean, welcoming and staff was very friendly

Reviewed on Dec 18, 2025

Drury Inn & Suites St. Louis O'Fallon, IL
La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis

3 out of 5
136 Regency Park 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 clean rooms in our reviews. ...
5.8/10 (1,001 reviews)
Clean bed and room. Very nice staff

Reviewed on Dec 12, 2025

La Quinta Inn & Suites by Wyndham O'Fallon, IL - St. Louis
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.