Cheap Flights to Southern Illinois from $45

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How Much Does it Cost To Fly To Southern Illinois?

The cheapest prices found with in the last 7 days for return flights were $81 and $45 for one-way flights to Southern Illinois for the period specified. Prices and availability are subject to change. Additional terms apply

Sun, Aug 24 - Sun, Aug 31
DTW
Detroit Metropolitan Wayne County
STL
Lambert-St. Louis Intl.
$81 Roundtrip, found 6 days ago
$81
Roundtrip
found 6 days ago
Select Spirit Airlines flight, departing Sun, Aug 24 from Detroit Metropolitan Wayne County to Lambert-St. Louis Intl., returning Sun, Aug 31, priced at $81 found 6 days ago
OriginDestinationTravel DatesFlights From*
FLLSt. LouisOctober 14 to October 18$98
JFKSt. LouisSeptember 25 to September 29$167
AUSEvansvilleSeptember 17 to September 27$297
JFKEvansvilleOctober 21 to October 25$339
DENEvansvilleNovember 6 to November 10$407
FLLDecaturNovember 18 to November 24$423
JFKWest PaducahOctober 16 to October 19$428
YKFSt. LouisNovember 21 to November 25$483
STLWest PaducahAugust 29 to September 5$568
LGAEvansvilleOctober 19 to October 20$597
AUSWest PaducahSeptember 24 to September 28$640
STLDecaturAugust 29 to August 30$651
DENDecaturAugust 27 to August 29$739
JFKScott CitySeptember 9 to September 10$921
FLLWest PaducahAugust 31 to September 1$991
*Prices include taxes and fees
OriginDestinationTravel DatesFlights From*
DENSt. LouisAugust 24 to August 30$169
FLLSt. LouisAugust 23 to August 23$177
AUSSt. LouisAugust 24 to September 7$207
JFKSt. LouisAugust 23 to August 25$241
LGASt. LouisAugust 23 to August 24$266
AUSEvansvilleAugust 23 to August 30$417
DENEvansvilleAugust 23 to August 26$446
DENDecaturAugust 24 to August 29$805
*Prices include taxes and fees

Southern Illinois STL Flight Information

Traveling to
Southern Illinois STL
Lowest Price
$81
Number of Airlines Serving
1
Airlines Serving
Frontier Airlines, Spirit Airlines
Number of Daily Flights
2
Airlines with Direct Flights
Southwest Airlines

Find The Perfect Hotel For After Your Flight

Amazing Southern Illinois Accommodation Deals

Motel 6 Caseyville, IL - Caseyville Il

Motel 6 Caseyville, IL - Caseyville Il

2 out of 5
2431 Old Country Inn Dr, Caseyville, IL
$62 nightly
The price is $70 total per night from Aug 24 to Aug 25
$70 total
Aug 24 - Aug 25
Total includes taxes and fees
Stay at this motel in Caseyville. Enjoy free parking, an outdoor pool, and a 24-hour front desk. Our guests praise the property condition in our reviews. Popular ...
6.2/10 (1,000 reviews)
"Great"

Reviewed on Aug 10, 2025

Motel 6 Caseyville, IL - Caseyville Il
Days Inn by Wyndham Charleston

Days Inn by Wyndham Charleston

2 out of 5
810 West Lincoln Avenue, Charleston, IL
$82 nightly
The price is $91 total per night from Aug 24 to Aug 25
$91 total
Aug 24 - Aug 25
Total includes taxes and fees
Stay at this hotel in Charleston. Enjoy free WiFi, free parking, and a 24-hour front desk. Our guests praise the helpful staff in our reviews. Popular attractions ...
7.6/10 Good! (748 reviews)
"It was fine"

Reviewed on Aug 14, 2025

Days Inn by Wyndham Charleston
Super 8 by Wyndham Marion

Super 8 by Wyndham Marion

2 out of 5
2601 Vernell Rd, Marion, IL
$67 nightly
The price is $80 total per night from Aug 18 to Aug 19
$80 total
Aug 18 - Aug 19
Total includes taxes and fees
Book a stay at this business-friendly motel in Marion. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms ...
7.6/10 Good! (1,000 reviews)
Humid basement room 101
"The room was very humid, AC did not seem to work well."

Reviewed on Aug 5, 2025

Super 8 by Wyndham Marion
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Americas Best Value Inn West Frankfort

Americas Best Value Inn West Frankfort

2.5 out of 5
1001 Factory Outlet Blvd, West Frankfort, IL
$68 nightly
The price is $75 total per night from Aug 24 to Aug 25
$75 total
Aug 24 - Aug 25
Total includes taxes and fees
Stay at this motel in West Frankfort. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms in our reviews. ...
7.6/10 Good! (456 reviews)
"No coffee pot inroom, tv had a big advertisement on screen and couldn't be removed. Need more breakfast options"

Reviewed on Aug 10, 2025

Americas Best Value Inn West Frankfort
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.

Luxury Hotels in Southern Illinois

Super 8 by Wyndham Troy IL/St. Louis Area

Super 8 by Wyndham Troy IL/St. Louis Area

2 out of 5
910 Edwardsville Rd, Troy, IL
$68 nightly
The price is $75 total per night from Aug 18 to Aug 19
$75 total
Aug 18 - Aug 19
Total includes taxes and fees
Book a stay at this business-friendly hotel in Troy. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms ...
7.8/10 Good! (1,002 reviews)
"Good"

Reviewed on Aug 14, 2025

Super 8 by Wyndham Troy IL/St. Louis Area
Rodeway Inn Effingham North

Rodeway Inn Effingham North

2 out of 5
1400 Thelma Keller Ave, Effingham, IL
$72 nightly
The price is $80 total per night from Aug 18 to Aug 19
$80 total
Aug 18 - Aug 19
Total includes taxes and fees
Stay at this motel in Effingham. Enjoy free WiFi, free parking, and a 24-hour front desk. Our guests praise the helpful staff and the clean rooms in our reviews. ...
7.6/10 Good! (1,000 reviews)
Good enough
"It worked for a 6 hour stay just to get some sleep. A lamp didn’t work in my room, but honestly my biggest complaint was this automatic check in terminal. It felt unprofessional to not have a person there physically. Sure there was a person on the screen, but i couldn’t understand what she was saying ..."

Reviewed on Jul 18, 2025

Rodeway Inn Effingham North
Suite Dreams Hotel

Suite Dreams Hotel

2.5 out of 5
300 Broadway Avenue East, Mattoon, IL
$94 nightly
The price is $105 total per night from Aug 18 to Aug 19
$105 total
Aug 18 - Aug 19
Total includes taxes and fees
Book a stay at this business-friendly hotel in Mattoon. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean ...
7.2/10 Good! (495 reviews)
"Perfect location to walk to Bagelfest"

Reviewed on Jul 20, 2025

Suite Dreams Hotel
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Harrah's Metropolis Hotel & Casino

Harrah's Metropolis Hotel & Casino

3.5 out of 5
100 E Front St, Metropolis, IL
$113 nightly
The price is $125 total per night from Sep 16 to Sep 17
$125 total
Sep 16 - Sep 17
Total includes taxes and fees
Stay at this 3.5-star hotel in Metropolis. Enjoy free parking, 2 restaurants, and a casino. Our guests praise the helpful staff and the clean rooms in our reviews. ...
8.2/10 Very Good! (1,001 reviews)
Fun for a short visit
"Always a fun place to stay, but it's getting a bit worn. I hope they can remodel the hotel rooms sometime. The casino is great fun, and the Bridges restaurant is top notch. Metropolis has lots of Superman memorabilia."

Reviewed on Aug 14, 2025

Harrah's Metropolis Hotel & Casino
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.

Family Friendly Hotels in Southern Illinois

Country Inn & Suites by Radisson, Marion, IL

Country Inn & Suites by Radisson, Marion, IL

2.5 out of 5
1306 Halfway Road, Marion, IL
$95 nightly
The price is $114 total per night from Aug 31 to Sep 1
$114 total
Aug 31 - Sep 1
Total includes taxes and fees
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 ...
8.4/10 Very Good! (1,001 reviews)
"Enjoyed the stay here."

Reviewed on Aug 13, 2025

Country Inn & Suites by Radisson, Marion, IL
Drury Plaza Hotel Mt. Vernon

Drury Plaza Hotel Mt. Vernon

3 out of 5
145 North 44th Street , Mount Vernon, IL
$94 nightly
The price is $106 total per night from Aug 31 to Sep 1
$106 total
Aug 31 - Sep 1
Total includes taxes and fees
Stay at this 3-star 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! (1,420 reviews)
"Great place, clean, been here a couple of times. Our go to stop when we travel to the midwest."

Reviewed on Aug 15, 2025

Drury Plaza Hotel Mt. Vernon
Comfort Inn & Suites O'Fallon - St. Louis Area

Comfort Inn & Suites O'Fallon - St. Louis Area

2 out of 5
116 Regency Park, O'Fallon, IL
$67 nightly
The price is $77 total per night from Aug 31 to Sep 1
$77 total
Aug 31 - Sep 1
Total includes taxes and fees
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 in our reviews. ...
7/10 Good! (42 reviews)
"The room and bed were nice. I also felt safe as a woman traveling alone for business. Lots of food options in the area."

Reviewed on Aug 15, 2025

Comfort Inn & Suites O'Fallon - St. Louis Area
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Holiday Inn Express And Suites Effingham by IHG

Holiday Inn Express And Suites Effingham by IHG

2.5 out of 5
1604 West Fayette Avenue, Effingham, IL
$114 nightly
The price is $128 total per night from Aug 24 to Aug 25
$128 total
Aug 24 - Aug 25
Total includes taxes and fees
Book a stay at this business-friendly hotel in Effingham. Enjoy free breakfast, free WiFi, and a fitness center. Our guests praise the breakfast and the helpful ...
9.4/10 Exceptional! (1,000 reviews)
"Great hotel stay"

Reviewed on Aug 11, 2025

Holiday Inn Express And Suites Effingham by IHG
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.

Best Southern Illinois Flight and Hotel Packages

Southern Illinois flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel

The Wildwood Hotel

3.5 out of 5
per person
Sep 22 - Sep 24
found 1 day ago
Roundtrip flight included
Charlotte (CLT) to St. Louis (STL)
The West End

The West End

2 out of 5
per person
Sep 27 - Oct 4
found 22 hours ago
Roundtrip non-stop flight included
Sacramento (SMF) to St. Louis (STL)
Ameristar Casino Resort and Spa

Ameristar Casino Resort and Spa

4.5 out of 5
per person
Sep 22 - Sep 24
found 1 day ago
Roundtrip flight included
Charlotte (CLT) to St. Louis (STL)
Don't see what you're looking for?
See all available trips from Charlotte to Southern Illinois
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Need a Car For After Your Flight?

Economy

Chevrolet Spark or similar
  • 4 people
Chevrolet Spark
Economy Chevrolet Spark

Compact

Ford Focus or similar
  • 4 people
Ford Focus
Compact Ford Focus

Midsize

Toyota Corolla or similar
  • 5 people
Toyota Corolla
Midsize Toyota Corolla

SUV

Jeep Compass or similar
  • 5 people
Jeep Compass
SUV Jeep Compass

Frequently asked questions

How much is the cheapest flight to Southern Illinois?
A roundtrip flight to Southern Illinois cost as little as $81 in the last seven days. Once you've decided on your travel dates, we'll help you grab a good deal. This price was available on Travelocity for flights to Southern Illinois departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly to Southern Illinois?
According to Travelocity's direct return flight demand between January and December last year, August is the cheapest period to jet off to Southern Illinois. Look for flights across this month and snag a terrific deal today.
How can I check my flight status to Southern Illinois?
There are a few simple ways to check your fight status. You can find all the necessary details in our "Trips" portal, which is located at the top of our homepage. Log in or create an account — you'll then be able to browse and amend your bookings whenever you need to. If you're already traveling, the Travelocity app can also help you check the status of your flight to Southern Illinois, as well as share details with any members of your family flying with you.
How do I find the best deals on flights to Southern Illinois?
It's good to book ahead of time, and if you can, avoid traveling during peak periods. Another great way to save is by clicking the "Flexible dates" box at the top of the page after searching for your flights. It's an easy way to compare prices for surrounding days. In the last seven days, the best price for a roundtrip flight to Southern Illinois was $81. This price was available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Why should I book my flight to Southern Illinois with Travelocity?
An exciting vacation is just a click away when you book your trip with Travelocity. With a wide selection of choices and great deals on cheap family flights, rental cars and more, we make it simple to locate the best prices for you. You can also take advantage of our 24/7 customer support and free cancellations on most hotels during your trip. Wander with us and secure your cheap flights to Southern Illinois today.
How much is a flight to Southern Illinois on average?
Based on prices found over the last seven days, roundtrip flights to Southern Illinois cost between $81 and $991. When you're ready to hop on a plane, Travelocity will help you find a fare that won't blow your budget. These prices were available on Travelocity for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What can I expect on a flight to Southern Illinois?
If you have a long-haul flight to Southern Illinois, you can usually expect drinks, meals and entertainment on board. Airlines like to make longer flights as pleasant as possible. Shorter journeys — as well as flights offered by budget airlines — may not have as many inclusions. If you're chasing cheap flights for family vacations with a low-cost carrier, you'll usually have to pay extra for snacks, drinks and entertainment.

Plane Tickets To Southern Illinois

Although you may try and resist the urge, you know that when the travel bug comes, there is only one way to get rid of it. Thankfully, Travelocity is here to help nip that travel bug in the bud with great deals on flights to Southern Illinois. Browse through our inventory to explore a wide range of cheap flights to Southern Illinois to solidify your next big trip out of town. Whether you are heading out on a business trip, exploring a place you have never been for pleasure or are bringing the family on the annual vacation, we have the perfect getaway waiting for you. In no time, you will be day dreaming of your plane landing in Southern Illinois as you anxiously await to exit the plane and explore what Southern Illinois has to offer. Considering all the amazing local food and culture in Southern Illinois, we won't hold this against you.

When you are ready to embark on your next big adventure, Travelocity will be right here waiting to open the doors to the garden so that you can go and smell the roses. When you decide to book and travel is entirely up to you, but don't wait too long because we have some of the best deals on the web and they won't last long. Take time to go through our huge selection of cheap flights to Southern Illinois to find the best deals that fit into your budget. If browsing on your phone while your boss isn't looking is more your thing (we promise we won't tell), consider checking out Travelocity's mobile app which allows you to take advantage of all our flights to Southern Illinois without having to compromise your work computer's search history. If you are looking to save even more, you can easily save up to $537 when you bundle one of our cheap flights to Southern Illinois with one of our hotels. So why are you waiting around? There is no better time than now to start booking that next trip. Start your search now to book one of our flights to Southern Illinois today!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.