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$91+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ORD
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$203
(Southwest)

One-way from

$91
(Southwest)

Popular in

December

Cheapest in

September

Average price

$326

Good round-trip deal

$306 or less

Good one-way deal

$139 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. 5% potential increase in price ($22 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 July 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 julio 3, 2025.

This Southwest deal was found by Cheapflights users on 7/3. 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.
sáb. 8/1610:55 amCHS - MDW
1 stop4h 50mSouthwest
dom. 8/178:25 amMDW - CHS
Nonstop2h 10mSouthwest
Deal found 7/3$203
This American Airlines deal was found by Cheapflights users on 7/3. 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.
jue. 8/217:56 pmCHS - ORD
Nonstop2h 34mAmerican Airlines
dom. 8/247:13 amORD - CHS
1 stop4h 03mAmerican Airlines
Deal found 7/3$203
This Southwest deal was found by Cheapflights users on 7/1. 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.
mié. 8/138:35 amCHS - ORD
2 stops13h 55mSouthwest
lun. 8/187:00 amORD - CHS
1 stop7h 35mSouthwest
Deal found 7/1$206
This Delta deal was found by Cheapflights users on 7/3. 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.
jue. 8/76:23 pmCHS - STL
1 stop6h 30mDelta
jue. 8/146:49 pmSTL - CHS
1 stop4h 02mDelta
Deal found 7/3$207
This Cheapflightsfares deal was found by Cheapflights users on 7/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/29:48 pmCHS - ORD
1 stop12h 07mSpirit Airlines
lun. 8/45:05 amORD - CHS
1 stop8h 40mSpirit Airlines
Deal found 7/1$211
This Delta deal was found by Cheapflights users on 7/1. 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.
vie. 8/295:35 pmCHS - MDW
1 stop5h 09mDelta
sáb. 8/304:25 pmMDW - CHS
1 stop6h 26mDelta
Deal found 7/1$213
This Delta deal was found by Cheapflights users on 7/3. 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.
jue. 8/2111:25 amCHS - ORD
1 stop5h 48mDelta
dom. 8/245:00 pmORD - CHS
1 stop4h 03mDelta
Deal found 7/3$213
This Southwest deal was found by Cheapflights users on 7/1. 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.
mié. 8/206:45 pmCHS - STL
1 stop4h 20mSouthwest
lun. 8/257:50 amSTL - CHS
Nonstop1h 55mSouthwest
Deal found 7/1$221
This Delta deal was found by Cheapflights users on 7/2. 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.
vie. 8/226:59 pmCHS - MLI
1 stop4h 49mDelta
mar. 8/266:00 amMLI - CHS
1 stop4h 50mDelta
Deal found 7/2$249
This United Airlines deal was found by Cheapflights users on 7/3. 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.
lun. 8/46:05 amCHS - ORD
Nonstop2h 32mUnited Airlines
mié. 8/136:15 pmORD - CHS
Nonstop2h 18mUnited Airlines
Deal found 7/3$251
This American Airlines deal was found by Cheapflights users on 7/3. 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.
jue. 9/46:27 amCHS - STL
2 stops7h 24mAmerican Airlines
lun. 9/81:21 pmSTL - CHS
1 stop4h 43mAmerican Airlines
Deal found 7/3$252
This United Airlines deal was found by Cheapflights users on 7/2. 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.
vie. 8/224:34 pmCHS - MLI
1 stop5h 38mUnited Airlines
mar. 8/266:30 amMLI - CHS
2 stops7h 03mUnited Airlines
Deal found 7/2$254

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 julio 3, 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

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

sáb. 8/16

10:55 am-2:45 pm

1 stop4h 50m

Chicago Midway

dom. 8/17

8:25 am-11:35 am

Nonstop2h 10m

$203

CharlestonChicago

CHS - ORD

CHSORD

Charleston

lun. 8/4

7:48 pm-9:19 pm

Nonstop2h 31m

Chicago O'Hare Intl

jue. 8/7

5:05 pm-11:59 pm

1 stop5h 54m

$203

CharlestonChicago

CHS - ORD

CHSORD

Charleston

mié. 8/13

8:35 am-9:30 pm

2 stops13h 55m

Chicago O'Hare Intl

lun. 8/18

7:00 am-3:35 pm

1 stop7h 35m

$206

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

jue. 8/7

6:23 pm-11:53 pm

1 stop6h 30m

Lambert-St Louis

jue. 8/14

6:49 pm-11:51 pm

1 stop4h 02m

$207

CharlestonChicago

CHS - ORD

CHSORD

Charleston

sáb. 8/2

9:48 pm-8:55 am

1 stop12h 07m

Chicago O'Hare Intl

lun. 8/4

5:05 am-2:45 pm

1 stop8h 40m

$211

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

vie. 8/29

5:35 pm-9:44 pm

1 stop5h 09m

Chicago Midway

sáb. 8/30

4:25 pm-11:51 pm

1 stop6h 26m

$213

CharlestonChicago

CHS - ORD

CHSORD

Charleston

vie. 9/12

5:10 am-8:40 am

1 stop4h 30m

Chicago O'Hare Intl

lun. 9/15

10:25 am-6:09 pm

1 stop6h 44m

$213

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

mié. 8/20

6:45 pm-10:05 pm

1 stop4h 20m

Lambert-St Louis

lun. 8/25

7:50 am-10:45 am

Nonstop1h 55m

$221

CharlestonMoline

CHS - MLI

CHSMLI

Charleston

vie. 8/22

6:59 pm-10:48 pm

1 stop4h 49m

Moline Quad-City

mar. 8/26

6:00 am-11:50 am

1 stop4h 50m

$249

CharlestonChicago

CHS - ORD

CHSORD

Charleston

sáb. 8/30

4:34 pm-6:10 pm

Nonstop2h 36m

Chicago O'Hare Intl

lun. 9/1

7:15 am-10:40 am

Nonstop2h 25m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 45 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 julio 3, 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 julio 3, 2025.

The most flights from CHS to USIL are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 julio 3, 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
4,270 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,270 reviews
Southwest
8.0
Very good
4,270 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,970 reviews
Southwest
8.0
Very good
4,270 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,845 reviews
Southwest
8.0
Very good
4,270 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,916 reviews
Southwest
8.0
Very good
4,270 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,270 reviews

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 Southwest, which is currently one of the cheapest options available, starting at $91. United Airlines flights start at $91 while deals on American Airlines start at $100 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 (92%), Air Canada (84%) or Air New Zealand (84%) 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 $1,971 for a flight from Charleston to Illinois. The cheapest flight overall is $138 while the most popular route, (Charleston - Chicago O'Hare Intl) is currently priced at $181.

  • 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.

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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 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$81Average$158FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$365FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$368FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$279Average$407FlexibilityNo cancel feeOn-time63%

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