HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Charleston

$57+ Cheap flights from Illinois to Charleston (CHS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CHS
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Charleston with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Charleston

Keep the following information in mind while searching for Illinois to Charleston flight deals. Data was last updated September 16, 2025.

Round-trip from

$156
(United Airlines)

One-way from

$57
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$381

Good round-trip deal

$326 or less

Good one-way deal

$182 or less
From Illinois to Charleston
Search Deals
One-way flight from Illinois to Charleston
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($62 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Charleston.
Search Deals
Price to beat on a one-way flight from Illinois to Charleston.
Search Deals

Find flight deals from Illinois to Charleston

Cheapest flights from Illinois to Charleston
Explore the most affordable flight options available from Illinois to Charleston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:30 amSTL - CHS
2 stops7h 39mUnited Airlines
Sat 11/2211:25 amCHS - STL
1 stop5h 21mUnited Airlines
Deal found 9/15$156
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:22 amSTL - CHS
1 stop5h 32mAmerican Airlines
Sat 10/115:00 amCHS - STL
1 stop4h 16mAmerican Airlines
Deal found 9/14$159
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/203:59 pmSTL - CHS
1 stop3h 52mDelta
Tue 11/412:59 pmCHS - STL
1 stop4h 11mDelta
Deal found 9/15$197
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:57 amSTL - CHS
1 stop21h 09mMultiple Airlines
Thu 11/611:40 amCHS - STL
2 stops29h 21mMultiple Airlines
Deal found 9/15$214
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1910:57 amSTL - CHS
1 stop21h 09mMultiple Airlines
Thu 11/611:40 amCHS - STL
2 stops29h 21mMultiple Airlines
Deal found 9/15$220
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:05 pmSTL - CHS
1 stop4h 56mUnited Airlines
Mon 11/36:15 amCHS - STL
1 stop7h 13mUnited Airlines
Deal found 9/15$221
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amSTL - CHS
1 stop7h 25mAmerican Airlines
Thu 10/167:43 pmCHS - STL
1 stop5h 15mAmerican Airlines
Deal found 9/15$228
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:57 amSTL - CHS
1 stop21h 09mMultiple Airlines
Tue 11/47:55 pmCHS - STL
2 stops46h 32mMultiple Airlines
Deal found 9/15$230
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/185:20 amSTL - CHS
1 stop7h 03mAmerican Airlines
Mon 10/207:43 pmCHS - STL
1 stop5h 15mAmerican Airlines
Deal found 9/14$233
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/305:46 pmORD - CHS
1 stop19h 43mMultiple Airlines
Sun 10/510:11 amCHS - ORD
1 stop25h 39mMultiple Airlines
Deal found 9/14$235
This KAYAK deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:44 pmORD - CHS
1 stop13h 21mSpirit Airlines
Mon 10/610:11 amCHS - ORD
1 stop9h 27mSpirit Airlines
Deal found 9/14$236
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1910:57 amSTL - CHS
1 stop21h 09mMultiple Airlines
Tue 11/47:55 pmCHS - STL
2 stops46h 32mMultiple Airlines
Deal found 9/15$236

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Charleston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Illinois to Charleston that are best for you.

Fly from

Illinois

Fly to

Charleston

Route

Depart

Return

Price

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 3/10

10:45 am-6:02 pm

1 stop6h 17m

Charleston

Wed 3/11

5:30 am-9:04 am

1 stop4h 34m

$197

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 10/14

5:15 pm-11:59 pm

1 stop5h 44m

Charleston

Mon 10/27

8:03 pm-11:41 pm

1 stop4h 38m

$197

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 10/21

5:15 pm-11:59 pm

1 stop5h 44m

Charleston

Thu 11/6

12:59 pm-6:02 pm

1 stop6h 03m

$197

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Mon 10/20

3:59 pm-8:51 pm

1 stop3h 52m

Charleston

Tue 11/4

12:59 pm-4:10 pm

1 stop4h 11m

$197

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 10/7

6:30 am-4:40 pm

2 stops9h 10m

Charleston

Sat 10/11

4:15 pm-10:35 pm

1 stop7h 20m

$226

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 3/10

1:27 pm-9:04 pm

1 stop6h 37m

Charleston

Wed 3/11

6:00 am-12:20 pm

2 stops7h 20m

$226

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 10/21

11:10 am-11:30 pm

2 stops11h 20m

Charleston

Sat 11/1

11:25 am-5:39 pm

1 stop7h 14m

$226

MolineCharleston

MLI - CHS

MLICHS

Moline Quad-City

Tue 9/30

6:30 am-3:03 pm

2 stops7h 33m

Charleston

Sat 10/4

6:00 am-4:54 pm

2 stops11h 54m

$269

MolineCharleston

MLI - CHS

MLICHS

Moline Quad-City

Sun 10/5

6:00 am-11:19 am

1 stop4h 19m

Charleston

Mon 10/13

7:43 pm-11:08 pm

1 stop4h 25m

$274

ChicagoCharleston

ORD - CHS

ORDCHS

Chicago O'Hare Intl

Tue 10/28

7:00 am-1:19 pm

1 stop5h 19m

Charleston

Thu 10/30

2:15 pm-8:52 pm

1 stop7h 37m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Illinois to Charleston

Have a flexible travel schedule? Discover the best time to fly to Charleston from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Charleston

What is the cheapest month to book a flight from Illinois to Charleston?

Currently, August is the cheapest month in which you can book a flight from Illinois to Charleston (average of $217). Flying from Illinois to Charleston in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to CHS?

Find hourly flight availability from Illinois to Charleston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Charleston as you normally would.

Weekly flight availability from Illinois to Charleston

Explore weekly flight availability from Illinois to Charleston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 16, 2025.

The most flights from USIL to CHS are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Charleston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Charleston from Illinois?

    Charleston (CHS), located 10.2 mi from the city center, is the airport you fly into when you book flights from Illinois to Charleston.

  • How long is the flight from Illinois to Charleston?

    There are many flights that can get you from Illinois to Charleston in 4h 19m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. Airlines will cover a distance of 824 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to Charleston one-way?

    $76 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on JetBlue and Spirit Airlines, with prices starting from $106 and $109, respectively.

  • What are the most popular routes from Illinois to Charleston?

    The most popular flight routes from Illinois to Charleston are Chicago O'Hare Intl - Charleston, Chicago Midway - Charleston and Lambert-St Louis - Charleston.

  • What are the most reliable airlines from Illinois to Charleston?

    Before booking your flight to Charleston from Illinois, check out the most reliable airlines to get you to your destination on time: United Airlines (81%), Air Canada (80%), Air New Zealand( 80%).

  • What are the cheapest flights from Illinois to Charleston?

    On average you can expect to pay $300 for a flight from Illinois to Charleston. The cheapest flight overall is $128 while the most popular route, (Chicago O'Hare Intl - Charleston) is currently priced at $158.

  • Can I find deals for flights from Illinois to Charleston that include hotel bookings?

    Yes. In addition to deals on Illinois to Charleston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Charleston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Charleston.

  • Can I find deals for business class flights from Illinois to Charleston?

    Yes. Cheapflights offers flight deals from Illinois to Charleston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Charleston?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Charleston (average of $217). Flying from Illinois to Charleston in March is currently the most expensive (average of $335). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Charleston?

Book flights to Charleston if you plan to visit one of these locations
North Charleston
Summerville
Walterboro
Mount Pleasant
Isle of Palms
Santee
Edisto Beach

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Charleston

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Charlotte flights
Boston to Charlotte flights
Newark to Charlotte flights
John F Kennedy Intl to Charleston flights
LaGuardia to Charlotte flights
Dallas/Fort Worth to Charlotte flights
Newark to Charleston flights
Denver to Charlotte flights
LaGuardia to Charleston flights
Boston to Charleston flights
O'Hare Intl to Charleston flights
John F Kennedy Intl to Savannah flights
Baltimore to Charlotte flights
Newark to Myrtle Beach flights
O'Hare Intl to Charlotte flights
Dulles Intl to Charlotte flights
O'Hare Intl to Savannah flights
Newark to Savannah flights
John F Kennedy Intl to Myrtle Beach flights
LaGuardia to Savannah flights
Philadelphia to Charlotte flights
Dulles Intl to Charleston flights
Reagan-National to Charleston flights
Boston to Savannah flights
LaGuardia to Myrtle Beach flights
Dallas/Fort Worth to Charleston flights
Minneapolis to Charlotte flights
Baltimore to Charleston flights
Philadelphia to Charleston flights
Reagan-National to Charlotte flights
Boston to Myrtle Beach flights
Los Angeles to Charlotte flights
Minneapolis to Charleston flights
Seattle to Charlotte flights
Philadelphia to Savannah flights
Minneapolis to Savannah flights
Hobby to Charlotte flights
Providence to Charlotte flights
Denver to Savannah flights
Reagan-National to Savannah flights
George Bush Intcntl to Charlotte flights
Detroit to Charlotte flights
Love Field to Charlotte flights
Providence to Charleston flights
Denver to Charleston flights
Detroit to Charleston flights
Baltimore to Savannah flights
John F Kennedy Intl to Greenville flights
Buffalo to Charlotte flights
LaGuardia to Greenville flights

Top 5 airlines flying from Illinois to Charleston

Discover the top 5 airlines that operate flights from Illinois to Charleston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$149Average$366FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$157Average$203FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$380FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$221Average$373FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$257Average$358FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.