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$78+ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ORD
ago. 18 — ago. 251
lun. 8/18
lun. 8/25
1 adult, Economy
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Cheap flight deals from Charleston to Illinois

Keep the following information in mind while searching for Charleston to Illinois flight deals. Data was last updated agosto 13, 2025.

Round-trip from

$173
(American Airlines)

One-way from

$78
(Cheapflightsfares)

Popular in

December

Cheapest in

August

Average price

$315

Good round-trip deal

$199 or less

Good one-way deal

$149 or less
From Charleston to Illinois
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One-way flight from Charleston to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Charleston to Illinois.
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Price to beat on a one-way flight from Charleston to Illinois.
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Find 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 agosto 13, 2025.

This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/27:38 pmCHS - STL
1 stop4h 27mAmerican Airlines
sáb. 9/67:01 amSTL - CHS
1 stop5h 14mAmerican Airlines
Deal found 8/11$173
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/193:10 pmCHS - STL
1 stop6h 56mAmerican Airlines
dom. 9/217:22 amSTL - CHS
1 stop4h 06mAmerican Airlines
Deal found 8/11$183
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/202:59 pmCHS - STL
2 stops6h 33mAmerican Airlines
lun. 9/226:29 amSTL - CHS
1 stop6h 10mAmerican Airlines
Deal found 8/11$188
This Southwest deal was found by Cheapflights users on 8/10. 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.
mar. 9/96:35 amCHS - MDW
Nonstop2h 05mSouthwest
mar. 9/166:05 pmMDW - CHS
Nonstop2h 10mSouthwest
Deal found 8/10$189
This United Airlines deal was found by Cheapflights users on 8/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/911:45 amCHS - ORD
Nonstop2h 28mUnited Airlines
mar. 9/163:50 pmORD - CHS
Nonstop2h 18mUnited Airlines
Deal found 8/10$189
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/92:59 pmCHS - ORD
1 stop7h 59mMultiple Airlines
jue. 9/115:23 pmORD - CHS
1 stop13h 11mMultiple Airlines
Deal found 8/11$191
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/106:27 amCHS - STL
1 stop3h 49mAmerican Airlines
mar. 9/168:17 amSTL - CHS
1 stop4h 22mAmerican Airlines
Deal found 8/11$193
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/510:10 amCHS - ORD
1 stop25h 42mMultiple Airlines
mié. 9/105:17 pmORD - CHS
1 stop14h 20mMultiple Airlines
Deal found 8/10$194
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/48:59 pmCHS - RFD
1 stop12h 01mMultiple Airlines
lun. 9/83:15 pmRFD - CHS
1 stop16h 22mMultiple Airlines
Deal found 8/11$197
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2910:10 amCHS - ORD
1 stop8h 29mSpirit Airlines
mié. 10/16:44 pmORD - CHS
1 stop15h 01mSpirit Airlines
Deal found 8/12$197
This American Airlines deal was found by Cheapflights users on 8/9. 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.
mié. 10/16:16 pmCHS - ORD
Nonstop2h 33mAmerican Airlines
sáb. 10/48:07 amORD - CHS
Nonstop2h 23mAmerican Airlines
Deal found 8/9$203
This JetBlue deal was found by Cheapflights users on 8/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/910:40 amCHS - ORD
1 stop9h 25mJetBlue
mié. 12/1711:30 amORD - CHS
1 stop8h 24mJetBlue
Deal found 8/11$205

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 agosto 13, 2025.
Use the filters below to find and compare flights from Charleston to Illinois that are best for you.

Fly from

Charleston

Fly to

Illinois

Route

Depart

Return

Price

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 11/4

7:00 am-12:37 pm

1 stop6h 37m

Lambert-St Louis

vie. 11/7

5:56 pm-11:10 pm

1 stop4h 14m

$173

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

jue. 9/25

11:15 am-4:15 pm

1 stop6h 00m

Lambert-St Louis

lun. 9/29

6:00 am-2:28 pm

1 stop7h 28m

$173

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 9/30

2:54 pm-8:15 pm

1 stop6h 21m

Lambert-St Louis

vie. 10/3

6:00 am-1:11 pm

1 stop6h 11m

$173

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mar. 9/2

7:38 pm-11:05 pm

1 stop4h 27m

Lambert-St Louis

sáb. 9/6

7:01 am-1:15 pm

1 stop5h 14m

$173

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

vie. 9/19

3:10 pm-9:06 pm

1 stop6h 56m

Lambert-St Louis

dom. 9/21

7:22 am-12:28 pm

1 stop4h 06m

$183

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

sáb. 9/27

6:16 pm-9:53 pm

1 stop4h 37m

Lambert-St Louis

lun. 9/29

9:56 am-5:47 pm

1 stop6h 51m

$183

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

sáb. 9/20

5:26 pm-11:07 pm

1 stop6h 41m

Lambert-St Louis

lun. 9/22

6:05 am-11:19 am

1 stop4h 14m

$183

CharlestonChicago

CHS - ORD

CHSORD

Charleston

mar. 9/9

12:00 pm-1:30 pm

Nonstop2h 30m

Chicago O'Hare Intl

mar. 9/16

2:19 pm-5:44 pm

Nonstop2h 25m

$189

CharlestonChicago

CHS - ORD

CHSORD

Charleston

mar. 9/9

2:59 pm-9:58 pm

1 stop7h 59m

Chicago O'Hare Intl

jue. 9/11

5:23 pm-7:34 am

1 stop13h 11m

$191

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

sáb. 11/15

7:53 pm-12:05 am

1 stop5h 12m

Lambert-St Louis

lun. 11/17

5:56 pm-11:10 pm

1 stop4h 14m

$193

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 60 results
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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

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

Currently, August is the cheapest month in which you can book a flight from Charleston to Illinois (average of $245). Flying from Charleston to Illinois in March is currently the most expensive (average of $321). 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 agosto 13, 2025.

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

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 agosto 13, 2025.

The most flights from CHS to USIL are scheduled on a Monday (19 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).

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 agosto 13, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Charleston to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,920 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Food

7.0

Comfort

8.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • 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 $78. American Airlines flights start at $86 while deals on Southwest start at $95 one-way.

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

    Most travelers choose Charleston - Chicago O'Hare Intl, Charleston - Chicago Midway or Charleston - Lambert-St Louis when deciding on the best route from Charleston to Illinois.

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

    Consider ANA (88%), Envoy Air (87%) or Qatar Airways (86%) 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 $1,946 for a flight from Charleston to Illinois. The cheapest flight overall is $90 while the most popular route, (Charleston - Chicago O'Hare Intl) is currently priced at $191.

  • 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, August is the cheapest month in which you can book a flight from Charleston to Illinois (average of $245). Flying from Charleston to Illinois in March is currently the most expensive (average of $321). 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

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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.
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Top 3 airlines flying from Charleston to Illinois

Discover the top 3 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 agosto 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$135Average$333FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$190Average$389FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$257Average$417FlexibilityNo cancel feeOn-time69%

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