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Charleston

$61+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CHS
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheap 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 February 12, 2026.

This American Airlines deal was found by Cheapflights users on 2/8. 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 4/186:53 pm
STL
-
CHS
1 stop4h 06m
American Airlines
Sat 4/255:00 am
CHS
-
STL
1 stop4h 30m
American Airlines
Deal found 2/8$189
This United Airlines deal was found by Cheapflights users on 2/12. 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.
Mon 5/47:45 am
STL
-
CHS
1 stop5h 06m
United Airlines
Fri 5/296:00 am
CHS
-
STL
1 stop5h 34m
United Airlines
Deal found 2/12$192
This Delta deal was found by Cheapflights users on 2/8. 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.
Sat 5/27:20 am
STL
-
CHS
1 stop5h 59m
Delta
Fri 5/85:15 am
CHS
-
STL
1 stop4h 03m
Delta
Deal found 2/8$193
This American Airlines deal was found by Cheapflights users on 2/9. 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 5/22:12 pm
STL
-
CHS
1 stop4h 17m
American Airlines
Fri 5/86:06 am
CHS
-
STL
1 stop6h 07m
American Airlines
Deal found 2/9$197
This Delta deal was found by Cheapflights users on 2/8. 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.
Tue 2/2410:13 am
STL
-
CHS
1 stop6h 41m
Delta
Sat 2/2811:46 am
CHS
-
STL
1 stop6h 43m
Delta
Deal found 2/8$205
This Delta deal was found by Cheapflights users on 2/10. 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.
Fri 4/174:41 pm
STL
-
CHS
1 stop4h 14m
Delta
Tue 4/215:57 pm
CHS
-
STL
1 stop6h 37m
Delta
Deal found 2/10$207
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Tue 2/249:55 am
STL
-
CHS
2 stops8h 05m
United Airlines
Sat 2/286:00 am
CHS
-
STL
1 stop5h 58m
United Airlines
Deal found 2/8$210
This United Airlines deal was found by Cheapflights users on 2/8. 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.
Sat 4/187:45 am
STL
-
CHS
1 stop5h 10m
United Airlines
Sat 4/256:00 am
CHS
-
STL
2 stops7h 22m
United Airlines
Deal found 2/8$222
This American Airlines deal was found by Cheapflights users on 2/10. 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 3/315:12 am
STL
-
CHS
1 stop5h 44m
American Airlines
Sun 4/55:10 am
CHS
-
STL
1 stop4h 25m
American Airlines
Deal found 2/10$234
This American Airlines deal was found by Cheapflights users on 2/9. 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 4/292:33 pm
STL
-
CHS
1 stop7h 26m
American Airlines
Mon 5/45:23 pm
CHS
-
STL
1 stop5h 00m
American Airlines
Deal found 2/9$239
This United Airlines deal was found by Cheapflights users on 2/11. 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.
Mon 4/209:10 am
STL
-
CHS
2 stops8h 49m
United Airlines
Fri 4/244:55 pm
CHS
-
STL
1 stop5h 52m
United Airlines
Deal found 2/11$241
This American Airlines deal was found by Cheapflights users on 2/12. 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.
Fri 4/175:21 pm
STL
-
CHS
1 stop4h 38m
American Airlines
Tue 4/217:00 am
CHS
-
STL
1 stop5h 37m
American Airlines
Deal found 2/12$245

Find flight deals from Illinois to Charleston

Keep the following information in mind while searching for Illinois to Charleston flight deals. Data was last updated February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$189
(American Airlines)

One-way from

$61
(Mytrip)

Popular in

March

Cheapest in

August

Average price

$371

Good round-trip deal

$306 or less

Good one-way deal

$184 or less
Provider with most accurate pricing for Chicago (CHI)-Charleston flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Charleston flights.
Search Deals
From Illinois to Charleston
Search Deals
One-way flight from Illinois to Charleston
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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

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 February 12, 2026.
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

Sat 7/11

3:42 pm-9:45 pm

1 stop5h 03m

Charleston

Sat 7/18

8:30 am-12:34 pm

1 stop5h 04m

$189

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Mon 5/4

7:45 am-1:51 pm

1 stop5h 06m

Charleston

Fri 5/29

6:00 am-10:34 am

1 stop5h 34m

$192

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Sat 5/2

7:20 am-2:19 pm

1 stop5h 59m

Charleston

Fri 5/8

5:15 am-8:18 am

1 stop4h 03m

$193

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Sat 5/2

5:46 am-11:49 am

1 stop5h 03m

Charleston

Fri 5/8

6:06 am-11:13 am

1 stop6h 07m

$197

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Wed 2/25

2:06 pm-9:22 pm

1 stop6h 16m

Charleston

Sat 2/28

6:37 pm-10:52 pm

1 stop5h 15m

$205

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Tue 2/24

10:13 am-5:54 pm

1 stop6h 41m

Charleston

Sat 2/28

11:46 am-5:29 pm

1 stop6h 43m

$205

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Mon 5/11

7:09 pm-12:09 am

1 stop4h 00m

Charleston

Fri 5/15

7:59 pm-11:59 pm

1 stop5h 00m

$207

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Mon 4/20

6:00 am-11:20 am

1 stop4h 20m

Charleston

Fri 4/24

5:20 am-8:30 am

1 stop4h 10m

$207

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Fri 4/17

4:41 pm-9:55 pm

1 stop4h 14m

Charleston

Tue 4/21

5:57 pm-11:34 pm

1 stop6h 37m

$207

SpringfieldCharleston

SPI - CHS

SPICHS

Springfield Capital

Thu 2/26

5:00 am-4:18 pm

2 stops10h 18m

Charleston

Mon 3/2

12:25 pm-6:23 pm

1 stop6h 58m

$250

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 60 results
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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, May is the cheapest month in which you can book a flight from Illinois to Charleston (average of $46). Flying from Illinois to Charleston in December is currently the most expensive (average of $234). 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 February 12, 2026.

It’s optimal to fly from Illinois to Charleston at noon. By choosing this option you can save up to 5% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Illinois to Charleston?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Charleston. Price data was last updated on February 7, 2026.

Travelers seeking maximum savings on their Illinois to Charleston flight should consider departing on Sunday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 February 12, 2026.

The most flights from USIL to CHS are scheduled on a Thursday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 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 5h 03m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. Airlines will cover a distance of 705 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?

    $90 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $90 and $116, 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: PSA Airlines (100%), Republic Airways (75%), American Airlines( 75%).

  • What are the cheapest flights from Illinois to Charleston?

    On average you can expect to pay $482 for a flight from Illinois to Charleston. The cheapest flight overall is $159 while the most popular route, (Chicago O'Hare Intl - Charleston) is currently priced at $123.

  • 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, May is the cheapest month in which you can book a flight from Illinois to Charleston (average of $46). Flying from Illinois to Charleston in December is currently the most expensive (average of $234). 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
Santee
Summerville
Walterboro
Isle of Palms
Mount Pleasant
Edisto Beach

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Alternative routes for Illinois to Charleston

See prices for flight routes from nearby airports that may be better suited for you.
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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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$109Average$179FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$124Average$373FlexibilityNo cancel feeOn-time71%
DeltaCheapest$149Average$325FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$153Average$315FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$231Average$411FlexibilityNo cancel feeOn-time69%

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