Illinois

$81+ Cheap flights from Charleston (CHS) to Illinois

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ORD
Jun 11 — Jun 181
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Cheap flight deals from Charleston to Illinois

Cheapest flights from Charleston to Illinois
Explore the most affordable flight options available from Charleston to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.

This Southwest deal was found by Cheapflights users on 5/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/91:50 pm
CHS
-
STL
Nonstop2h 10m
Southwest
Tue 6/163:15 pm
STL
-
CHS
Nonstop2h 00m
Southwest
Deal found 5/9$237
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 7/1411:31 am
CHS
-
STL
1 stop5h 15m
United Airlines
Wed 7/221:13 pm
STL
-
CHS
1 stop7h 35m
United Airlines
Deal found 5/11$257
This American Airlines deal was found by Cheapflights users on 5/7. 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 9/306:13 pm
CHS
-
STL
1 stop6h 07m
American Airlines
Sat 10/34:47 pm
STL
-
CHS
1 stop6h 18m
American Airlines
Deal found 5/7$258
This Southwest deal was found by Cheapflights users on 5/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:45 pm
CHS
-
STL
Nonstop2h 05m
Southwest
Mon 6/82:20 pm
STL
-
CHS
Nonstop2h 00m
Southwest
Deal found 5/10$265
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Mon 6/14:13 pm
CHS
-
ORD
1 stop6h 21m
American Airlines
Wed 6/37:41 pm
ORD
-
CHS
Nonstop2h 19m
American Airlines
Deal found 5/8$271
This United Airlines deal was found by Cheapflights users on 5/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:40 pm
CHS
-
STL
1 stop5h 49m
United Airlines
Tue 6/96:00 am
STL
-
CHS
1 stop7h 16m
United Airlines
Deal found 5/9$271
This Southwest deal was found by Cheapflights users on 5/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/103:00 pm
CHS
-
MDW
2 stops6h 10m
Southwest
Wed 6/176:20 pm
MDW
-
CHS
Nonstop2h 05m
Southwest
Deal found 5/11$272
This Southwest deal was found by Cheapflights users on 5/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:35 am
CHS
-
MDW
Nonstop2h 10m
Southwest
Mon 8/178:05 am
MDW
-
CHS
Nonstop2h 20m
Southwest
Deal found 5/10$274
This Southwest deal was found by Cheapflights users on 5/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:15 pm
CHS
-
STL
1 stop5h 15m
Southwest
Tue 6/93:15 pm
STL
-
CHS
Nonstop2h 00m
Southwest
Deal found 5/9$274
This Southwest deal was found by Cheapflights users on 5/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:45 pm
CHS
-
MDW
1 stop3h 50m
Southwest
Mon 6/87:45 pm
MDW
-
CHS
Nonstop2h 05m
Southwest
Deal found 5/8$275
This American Airlines deal was found by Cheapflights users on 5/8. 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.
Thu 6/412:58 pm
CHS
-
ORD
1 stop4h 45m
American Airlines
Mon 6/84:06 pm
ORD
-
CHS
Nonstop2h 24m
American Airlines
Deal found 5/8$275
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:30 pm
CHS
-
MDW
1 stop6h 16m
Delta
Tue 9/810:35 am
MDW
-
CHS
1 stop5h 19m
Delta
Deal found 5/11$277

Find flight deals from Charleston to Illinois

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

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$237
(Southwest)

One-way from

$81
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$396

Good round-trip deal

$353 or less

Good one-way deal

$191 or less
Provider with most accurate pricing for Charleston-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for Charleston-Chicago (CHI) flights.
From Charleston to Illinois
One-way flight from Charleston to Illinois
Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in May 2026
Price to beat on a round-trip flight from Charleston to Illinois.
Price to beat on a one-way flight from Charleston to Illinois.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charleston to Illinois 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 May 12, 2026.
Use the filters below to find and compare flights from Charleston to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Sat 6/6

6:40 pm-11:29 pm

1 stop5h 49m

Lambert-St Louis

Tue 6/9

6:00 am-2:16 pm

1 stop7h 16m

$271

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

Tue 7/14

6:10 am-7:20 am

Nonstop2h 10m

Chicago Midway

Tue 7/14

8:20 am-4:10 pm

2 stops6h 50m

$272

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 9/10

7:00 am-11:54 am

1 stop5h 54m

Lambert-St Louis

Mon 9/14

1:30 pm-8:43 pm

1 stop6h 13m

$293

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 10/8

5:30 am-8:12 am

1 stop3h 42m

Lambert-St Louis

Mon 10/12

1:30 pm-6:54 pm

1 stop4h 24m

$293

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Wed 9/30

10:45 am-4:25 pm

1 stop6h 40m

Lambert-St Louis

Sat 10/3

12:05 pm-7:45 pm

2 stops6h 40m

$298

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 6/18

8:00 am-2:10 pm

1 stop7h 10m

Lambert-St Louis

Tue 6/23

10:15 am-8:25 pm

2 stops9h 10m

$302

CharlestonChicago

CHS - RFD

CHSRFD

Charleston

Fri 5/22

3:23 pm-9:21 am

1 stop18h 58m

Chicago Greater Rockford

Sat 5/30

10:11 am-8:38 am

1 stop21h 27m

$313

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

Thu 5/28

7:40 am-8:55 am

Nonstop2h 15m

Chicago Midway

Wed 6/3

1:00 pm-8:25 pm

1 stop6h 25m

$316

CharlestonPeoria

CHS - PIA

CHSPIA

Charleston

Tue 6/9

6:00 am-10:10 am

1 stop5h 10m

Greater Peoria

Mon 6/15

1:13 pm-9:51 pm

1 stop7h 38m

$319

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

Tue 7/14

10:45 am-4:55 pm

2 stops7h 10m

Chicago Midway

Wed 7/15

11:25 am-8:25 pm

2 stops8h 00m

$319

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Charleston to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Charleston 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 Charleston to Illinois

How far ahead should I book a flight from Charleston to Illinois?

The best time to book flights from Charleston to Illinois is 73 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Charleston to Illinois (average of $104). Flying from Charleston to Illinois in March is currently the most expensive (average of $237). 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 CHS to IL?

Find hourly flight availability from Charleston to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2026.

When flying from Charleston to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 18% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Charleston to Illinois. Price data was last updated on May 9, 2026.

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

Weekly flight availability from Charleston to Illinois

Explore weekly flight availability from Charleston to Illinois. 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 May 12, 2026.

The most flights from CHS to USIL are scheduled on a Monday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (18 on average).

How much does it cost to fly round-trip from Charleston to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 12, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Charleston to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Charleston to Illinois. 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 from for flights from Charleston to Illinois?

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

  • How long is the flight from Charleston to Illinois?

    A quick flight from Charleston to Illinois can take about 2h 10m. Southwest provides one of the quickest options available for as low as $272. The distance between Charleston and Illinois is about 745 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $80. American Airlines flights start at $87 while deals on Southwest start at $92 one-way.

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

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

    Consider Envoy Air (87%), Qatar Airways (80%) or American Airlines (80%) when booking your flight. These represent the most reliable airlines when flying from Charleston to Illinois.

  • What are the cheapest flights from Charleston to Illinois?

    On average you can expect to pay $899 for a flight from Charleston to Illinois. The cheapest flight overall is $132 while the most popular route, (Charleston - Chicago O'Hare Intl) is currently priced at $257.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Charleston to Illinois 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 Charleston to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Charleston to Illinois (average of $104). Flying from Charleston to Illinois in March is currently the most expensive (average of $237). 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.

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Alternative routes for Charleston to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Charleston to Illinois

Discover the top 4 airlines that operate flights from Charleston to Illinois. 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 May 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$135Average$406FlexibilityNo cancel feeOn-time71%
DeltaCheapest$166Average$427FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$190Average$308FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$237Average$360FlexibilityNo cancel feeOn-time69%

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