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Charleston

$45+ 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CHS
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
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 December 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
Wed 12/312:15 pmORD - CHS
2 stops30h 08mMultiple Airlines
Mon 1/52:15 pmCHS - ORD
1 stop19h 16mMultiple Airlines
Deal found 12/18$237
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
Wed 12/314:38 pmORD - CHS
1 stop19h 32mSpirit Airlines
Mon 1/52:15 pmCHS - ORD
1 stop19h 16mSpirit Airlines
Deal found 12/18$242
This Delta deal was found by Cheapflights users on 12/18. 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.
Wed 12/315:31 pmORD - CHS
1 stop5h 27mDelta
Thu 1/16:00 amCHS - ORD
1 stop4h 36mDelta
Deal found 12/18$269
This Delta deal was found by Cheapflights users on 12/18. 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.
Wed 12/313:29 pmMDW - CHS
1 stop4h 10mDelta
Thu 1/16:00 amCHS - MDW
1 stop4h 05mDelta
Deal found 12/18$269
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
Wed 12/313:10 pmMDW - CHS
1 stop16h 27mMultiple Airlines
Sun 1/410:18 pmCHS - MDW
2 stops24h 54mMultiple Airlines
Deal found 12/18$313
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/317:10 amORD - CHS
Nonstop2h 25mUnited Airlines
Wed 12/314:59 pmCHS - ORD
Nonstop2h 40mUnited Airlines
Deal found 12/18$319
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/307:20 amORD - CHS
2 stops28h 50mSpirit Airlines
Mon 1/52:15 pmCHS - ORD
1 stop19h 16mSpirit Airlines
Deal found 12/18$324
This Kiwi.com deal was found by Cheapflights users on 12/17. 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 12/184:38 pmORD - CHS
1 stop19h 32mSpirit Airlines
Thu 1/226:35 pmCHS - ORD
1 stop17h 47mSpirit Airlines
Deal found 12/17$337
This American Airlines deal was found by Cheapflights users on 12/19. 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 12/306:00 pmSTL - CHS
1 stop5h 45mAmerican Airlines
Mon 1/123:16 pmCHS - STL
1 stop8h 43mAmerican Airlines
Deal found 12/19$344
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
Wed 12/314:38 pmORD - CHS
1 stop19h 32mMultiple Airlines
Sun 1/42:15 pmCHS - ORD
1 stop23h 42mMultiple Airlines
Deal found 12/18$348
This United Airlines deal was found by Cheapflights users on 12/18. 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 12/3110:35 amORD - CHS
Nonstop2h 34mUnited Airlines
Mon 1/511:40 amCHS - ORD
Nonstop2h 29mUnited Airlines
Deal found 12/18$349
This Delta deal was found by Cheapflights users on 12/21. 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.
Wed 12/315:13 pmSTL - CHS
1 stop5h 45mDelta
Tue 1/63:02 pmCHS - STL
1 stop6h 04mDelta
Deal found 12/21$351

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 December 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$165
(Kiwi.com)

One-way from

$45
(Priceline)

Popular in

December

Cheapest in

August

Average price

$449

Good round-trip deal

$344 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. 7% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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

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 December 21, 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

Mon 1/26

10:16 am-8:38 am

1 stop21h 22m

Charleston

Thu 1/29

3:01 pm-10:23 am

1 stop20h 22m

$191

St. LouisCharleston

STL - CHS

STLCHS

Lambert-St Louis

Sat 1/17

5:11 pm-8:38 am

1 stop14h 27m

Charleston

Sat 1/24

6:35 pm-6:51 am

2 stops37h 16m

$205

ChicagoCharleston

ORD - CHS

ORDCHS

Chicago O'Hare Intl

Sat 1/17

8:00 am-1:28 pm

1 stop4h 28m

Charleston

Sun 1/18

11:28 am-8:47 pm

1 stop10h 19m

$264

PeoriaCharleston

PIA - CHS

PIACHS

Greater Peoria

Wed 4/29

2:50 pm-9:25 pm

1 stop5h 35m

Charleston

Sat 5/2

6:35 am-10:02 am

1 stop4h 27m

$269

MolineCharleston

MLI - CHS

MLICHS

Moline Quad-City

Sat 1/24

5:20 pm-11:55 pm

1 stop5h 35m

Charleston

Sat 1/31

10:31 am-4:26 pm

1 stop6h 55m

$269

MolineCharleston

MLI - CHS

MLICHS

Moline Quad-City

Fri 1/16

5:11 pm-11:55 pm

1 stop5h 44m

Charleston

Sun 1/18

5:18 pm-10:33 pm

1 stop6h 15m

$269

ChicagoCharleston

ORD - CHS

ORDCHS

Chicago O'Hare Intl

Wed 12/31

5:31 pm-11:58 pm

1 stop5h 27m

Charleston

Thu 1/1

6:00 am-9:36 am

1 stop4h 36m

$269

MolineCharleston

MLI - CHS

MLICHS

Moline Quad-City

Sat 1/24

6:15 am-1:36 pm

1 stop6h 21m

Charleston

Sat 1/31

6:10 am-10:58 am

2 stops5h 48m

$274

MolineCharleston

MLI - CHS

MLICHS

Moline Quad-City

Wed 2/18

2:02 pm-11:01 pm

2 stops7h 59m

Charleston

Mon 2/23

4:57 pm-11:45 pm

1 stop7h 48m

$274

ChicagoCharleston

ORD - CHS

ORDCHS

Chicago O'Hare Intl

Wed 1/14

4:50 pm-8:02 pm

Nonstop2h 12m

Charleston

Sat 1/17

10:30 am-11:59 am

Nonstop2h 29m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 59 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 $248). 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 December 21, 2025.

It’s optimal to fly from Illinois to Charleston at noon. By choosing this option you can save up to 40% 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 December 16, 2024.

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 December 21, 2025.

The most flights from USIL to CHS are scheduled on a Saturday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 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 28m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. Airlines will cover a distance of 760 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 United Airlines. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $100 and $102, 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: Emirates (80%), Alaska Airlines (77%), Air Canada( 72%).

  • What are the cheapest flights from Illinois to Charleston?

    On average you can expect to pay $302 for a flight from Illinois to Charleston. The cheapest flight overall is $124 while the most popular route, (Chicago O'Hare Intl - Charleston) is currently priced at $112.

  • 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 $248). 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$124Average$375FlexibilityNo cancel feeOn-time71%
DeltaCheapest$149Average$334FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$157Average$185FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$221Average$395FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$245Average$332FlexibilityNo cancel feeOn-time63%

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