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$53+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ORD
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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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 February 13, 2026.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 pm
CHS
-
ORD
1 stop8h 40m
Spirit Airlines
Tue 3/176:01 pm
ORD
-
CHS
1 stop16h 08m
Spirit Airlines
Deal found 2/10$118
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:26 pm
CHS
-
MDW
1 stop22h 34m
Multiple Airlines
Sat 5/97:30 am
MDW
-
CHS
1 stop6h 10m
Multiple Airlines
Deal found 2/10$129
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 3/2412:04 pm
CHS
-
ORD
1 stop13h 18m
Spirit Airlines
Mon 3/306:01 pm
ORD
-
CHS
1 stop16h 08m
Spirit Airlines
Deal found 2/13$132
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:35 pm
CHS
-
ORD
1 stop8h 08m
Spirit Airlines
Tue 5/54:47 pm
ORD
-
CHS
1 stop14h 53m
Spirit Airlines
Deal found 2/9$133
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/105:00 pm
CHS
-
ORD
1 stop8h 40m
Spirit Airlines
Wed 3/116:51 pm
ORD
-
CHS
1 stop15h 18m
Spirit Airlines
Deal found 2/10$135
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:26 pm
CHS
-
MDW
1 stop22h 34m
Multiple Airlines
Mon 4/277:30 am
MDW
-
CHS
1 stop6h 01m
Multiple Airlines
Deal found 2/10$138
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:35 pm
CHS
-
ORD
1 stop8h 08m
Multiple Airlines
Sat 5/98:00 am
ORD
-
CHS
1 stop12h 29m
Multiple Airlines
Deal found 2/10$149
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 3/2612:04 pm
CHS
-
ORD
1 stop13h 18m
Spirit Airlines
Mon 3/306:01 pm
ORD
-
CHS
1 stop16h 08m
Spirit Airlines
Deal found 2/13$151
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 3/3112:04 pm
CHS
-
ORD
1 stop13h 18m
Spirit Airlines
Mon 4/67:31 pm
ORD
-
CHS
1 stop14h 38m
Spirit Airlines
Deal found 2/13$154
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/285:00 pm
CHS
-
ORD
1 stop8h 40m
Spirit Airlines
Tue 3/36:51 pm
ORD
-
CHS
1 stop20h 14m
Spirit Airlines
Deal found 2/10$155
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:35 pm
CHS
-
ORD
1 stop8h 08m
Spirit Airlines
Sat 5/95:15 am
ORD
-
CHS
1 stop16h 26m
Spirit Airlines
Deal found 2/10$157
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:26 pm
CHS
-
ORD
1 stop8h 39m
Spirit Airlines
Mon 5/45:09 pm
ORD
-
CHS
1 stop20h 22m
Spirit Airlines
Deal found 2/11$158

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 February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$118
(Mytrip)

One-way from

$53
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$376

Good round-trip deal

$316 or less

Good one-way deal

$177 or less
Provider with most accurate pricing for Charleston-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charleston-Chicago (CHI) flights.
Search Deals
From Charleston to Illinois
Search Deals
One-way flight from Charleston to Illinois
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 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 Charleston to Illinois.
Search Deals
Price to beat on a one-way flight from Charleston to Illinois.
Search Deals

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 February 13, 2026.
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 - ORD

CHSORD

Charleston

Tue 5/5

3:35 pm-10:43 pm

1 stop8h 08m

Chicago O'Hare Intl

Sat 5/9

5:15 am-10:41 pm

1 stop16h 26m

$157

CharlestonChicago

CHS - ORD

CHSORD

Charleston

Wed 3/11

5:00 pm-12:40 am

1 stop8h 40m

Chicago O'Hare Intl

Wed 3/18

7:17 am-10:13 pm

1 stop13h 56m

$190

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 4/9

4:55 pm-9:08 pm

1 stop5h 13m

Lambert-St Louis

Mon 4/13

7:45 am-1:55 pm

1 stop5h 10m

$197

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Tue 4/7

4:55 pm-9:08 pm

1 stop5h 13m

Lambert-St Louis

Sat 4/11

7:45 am-1:55 pm

1 stop5h 10m

$197

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Tue 3/3

7:00 pm-11:59 pm

1 stop5h 59m

Lambert-St Louis

Wed 3/4

6:25 am-12:30 pm

1 stop5h 05m

$200

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Fri 3/27

8:15 am-2:43 pm

1 stop7h 28m

Lambert-St Louis

Tue 3/31

6:30 am-2:53 pm

2 stops7h 23m

$202

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Wed 2/25

7:00 pm-11:59 pm

1 stop5h 59m

Lambert-St Louis

Sun 3/1

6:25 am-1:52 pm

1 stop6h 27m

$205

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Wed 4/22

7:25 am-10:34 am

1 stop4h 09m

Lambert-St Louis

Sun 4/26

6:50 pm-12:22 am

1 stop4h 32m

$207

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Wed 4/29

5:20 am-10:34 am

1 stop6h 14m

Lambert-St Louis

Sun 5/3

6:00 am-11:20 am

1 stop4h 20m

$207

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

Sun 3/15

3:01 pm-2:21 pm

1 stop24h 20m

Chicago Midway

Wed 3/18

6:05 am-10:13 pm

2 stops15h 08m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

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, April is the cheapest month in which you can book a flight from Charleston to Illinois (average of $76). Flying from Charleston to Illinois in February 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 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 February 13, 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 34% 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 February 7, 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 February 13, 2026.

The most flights from CHS to USIL are scheduled on a Thursday (25 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (12 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 February 13, 2026.
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
4,284 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,284 reviews
Southwest
8.0
Very good
4,284 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,203 reviews
Southwest
8.0
Very good
4,284 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,289 reviews
Southwest
8.0
Very good
4,284 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,288 reviews
Southwest
8.0
Very good
4,284 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 4h 42m. Spirit Airlines provides one of the quickest options available for as low as $267. 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 $90 while deals on Southwest start at $92 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 PSA Airlines (100%), Envoy Air (84%) or Qatar Airways (83%) 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 $939 for a flight from Charleston to Illinois. The cheapest flight overall is $125 while the most popular route, (Charleston - Chicago O'Hare Intl) is currently priced at $118.

  • 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, April is the cheapest month in which you can book a flight from Charleston to Illinois (average of $76). Flying from Charleston to Illinois in February 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

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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 February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$135Average$351FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$190Average$349FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$198Average$339FlexibilityNo cancel feeOn-time69%
DeltaCheapest$233Average$548FlexibilityNo cancel feeOn-timeN/A

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