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Southwest Illinois

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Southwest Illinois Flights as Low as $229

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

Bargain Flight
Sat, Oct 31 - Tue, Nov 3
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select Bargain Flight flight, departing Sat, Oct 31 from Norfolk Intl. to Lambert-St. Louis Intl., returning Tue, Nov 3, priced at $229 found 1 hour ago
Delta
Thu, Oct 29 - Sat, Oct 31
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$235 Roundtrip, found 1 day ago
$235
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Oct 29 from Norfolk Intl. to Lambert-St. Louis Intl., returning Sat, Oct 31, priced at $235 found 1 day ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$240 Roundtrip, found 16 hours ago
$240
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $240 found 16 hours ago
Frontier Airlines
Tue, Aug 11 - Thu, Aug 20
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$242 Roundtrip, found 1 day ago
$242
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $242 found 1 day ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$245 Roundtrip, found 16 hours ago
$245
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $245 found 16 hours ago
Frontier Airlines
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$250 Roundtrip, found 16 hours ago
$250
Roundtrip
found 16 hours ago
Select Frontier Airlines flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $250 found 16 hours ago
American Airlines
Tue, Aug 11 - Thu, Aug 20
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$252 Roundtrip, found 1 day ago
$252
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 11 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $252 found 1 day ago
American Airlines
Sat, Oct 31 - Tue, Nov 3
ORF
Norfolk Intl.
STL
Lambert-St. Louis Intl.
$253 Roundtrip, found 1 hour ago
$253
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Oct 31 from Norfolk Intl. to Lambert-St. Louis Intl., returning Tue, Nov 3, priced at $253 found 1 hour ago
Delta
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$255 Roundtrip, found 16 hours ago
$255
Roundtrip
found 16 hours ago
Select Delta flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $255 found 16 hours ago
Frontier Airlines
Tue, Aug 11 - Thu, Aug 20
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$256 Roundtrip, found 1 day ago
$256
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $256 found 1 day ago
Frontier Airlines
Tue, Aug 11 - Thu, Aug 20
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$257 Roundtrip, found 1 day ago
$257
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Tue, Aug 11 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $257 found 1 day ago
Delta
Tue, Aug 11 - Thu, Aug 20
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Aug 11 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $262 found 1 day ago
American Airlines
Tue, Aug 11 - Thu, Aug 20
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$277 Roundtrip, found 1 day ago
$277
Roundtrip
found 1 day ago
Select American Airlines flight, departing Tue, Aug 11 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Thu, Aug 20, priced at $277 found 1 day ago
Alaska Airlines
Tue, Sep 1 - Tue, Sep 8
PHX
Sky Harbor Intl.
STL
Lambert-St. Louis Intl.
$499 Roundtrip, found 16 hours ago
$499
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Tue, Sep 1 from Sky Harbor Intl. to Lambert-St. Louis Intl., returning Tue, Sep 8, priced at $499 found 16 hours ago
American Airlines
Sat, Jun 20 - Wed, Jul 1
PHX
Sky Harbor Intl.
MWA
Veterans Airport of Southern Illinois
$544 Roundtrip, found 3 hours ago
$544
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Sat, Jun 20 from Sky Harbor Intl. to Veterans Airport of Southern Illinois, returning Wed, Jul 1, priced at $544 found 3 hours ago
American Airlines
Wed, Jul 8 - Wed, Jul 22
ORF
Norfolk Intl.
MWA
Veterans Airport of Southern Illinois
$624 Roundtrip, found 1 day ago
$624
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Jul 8 from Norfolk Intl. to Veterans Airport of Southern Illinois, returning Wed, Jul 22, priced at $624 found 1 day ago

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 October, 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 15 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 Veterans Airport of Southern Illinois 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 $229, 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 $229 right now, why wait?

Southwest Illinois Flight Information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Roundtrip price
$102

Last Minute Hotel Deals in Southwest Illinois

Drury Plaza Hotel Mt. Vernon

Drury Plaza Hotel Mt. Vernon

3.5 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! (1,723 reviews)
"Very clean, great happy hour food and breakfast. Staff was very kind. Fast check in and check out."

Reviewed on Jun 10, 2026

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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 ...
9.2/10 Wonderful! (1,018 reviews)
"It was a simple stay, I didn’t spend much time at the hotel but they were quick with no issues. I might have left my white button up in the closet. But overall everything was fine."

Reviewed on Jun 9, 2026

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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 ...
6.8/10 (1,007 reviews)
"they have roaches in every room, i was switch 5 times to different rooms even different floors. they have bed bugs my daughters were bit up all over even on their faces, i complained to the staff with no help they can hardly understand you, housekeeping is extremely rude even when they’re at fault, ..."

Reviewed on Jun 10, 2026

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Super 8 by Wyndham O'Fallon
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! (1,001 reviews)
"Great one-night stay. Room was quiet, bed was comfortable, and"free" food was good. Would recommend!"

Reviewed on Jun 8, 2026

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Drury Inn & Suites St. Louis O'Fallon, IL
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! (1,015 reviews)
"The room was clean. The bed was comfortable. The staff was friendly. Great variety for breakfast."

Reviewed on Jun 10, 2026

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Drury Inn & Suites Marion
The Principal Hotel

The Principal Hotel

3.5 out of 5
310 S Main St Columbia IL
Stay at this hotel in Columbia. Enjoy free WiFi, free parking, and a fitness center. Popular attractions Triple Lakes Golf Course and Eckert’s Millstadt Farm ...
9.6/10 Exceptional! (288 reviews)
"Cute hotel in a former school. Looks brand new. Bed was perfect with full size pillows. Everything was very clean. A/C was turned down too low when we arrived. Room was freezing! Room had extra pilliws and blankets in the closet! It’s the little things that make a stay special"

Reviewed on Jun 8, 2026

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The Principal Hotel
Quality Inn & Suites near St. Louis and I-255

Quality Inn & Suites near St. Louis and I-255

2.5 out of 5
1607 Pontiac Dr East St. Louis IL
Book a stay at this business-friendly hotel in East St. Louis. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the ...
7.4/10 Good! (1,006 reviews)
"We booked this hotel as out of town guests visiting St. Louis. Had no idea where we were staying. #1 it's in the ghetto. Bad roads literally and physically. #2 smells like pot. People was smoking pot and cigarettes just outside the front door. #3 We were charged a $100 incidental fee which still ..."

Reviewed on Jun 9, 2026

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Quality Inn & Suites near St. Louis and I-255
Welcome Suites

Welcome Suites

2 out of 5
148 Regency Park O'Fallon IL
Book a stay at this business-friendly hotel in O'Fallon. Enjoy free WiFi, free parking, and a fitness center. Popular attractions O'Fallon Family Sports Park ...
5.8/10 (274 reviews)
"1. I always do the book now and pay later so I know what I’m paying for when I get to the hotel 2. I called the hotel to make sure me arriving early the next morning was ok and they said yes and for some reason they checked me in and charged my card. 3. I wasn’t made aware of that til I went to cancel ..."

Reviewed on Jun 8, 2026

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Welcome Suites
See all 776 properties in Southwest Illinois
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.