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$90+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$194
(Mytrip)

One-way from

$90
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$372

Good round-trip deal

$310 or less

Good one-way deal

$174 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 ($20 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 June 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 June 12, 2025.

This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/1010:53 amCHS - STL
1 stop23h 59mSpirit Airlines
Thu 7/1710:47 amSTL - CHS
1 stop22h 06mSpirit Airlines
Deal found 6/11$194
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:59 amCHS - STL
1 stop8h 14mAmerican Airlines
Mon 9/297:23 amSTL - CHS
1 stop9h 21mAmerican Airlines
Deal found 6/10$243
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Thu 8/77:56 pmCHS - ORD
Nonstop2h 34mAmerican Airlines
Sun 8/109:55 amORD - CHS
Nonstop2h 22mAmerican Airlines
Deal found 6/11$249
This Delta deal was found by Cheapflights users on 6/11. 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.
Fri 7/43:01 pmCHS - MLI
1 stop6h 22mDelta
Sat 7/125:26 pmMLI - CHS
1 stop5h 33mDelta
Deal found 6/11$249
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/257:03 amCHS - ORD
1 stop24h 34mSpirit Airlines
Fri 6/279:28 pmORD - CHS
1 stop24h 01mSpirit Airlines
Deal found 6/12$252
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/253:05 pmCHS - STL
2 stops24h 34mMultiple Airlines
Sun 7/2710:47 amSTL - CHS
1 stop22h 06mMultiple Airlines
Deal found 6/11$253
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 7/42:44 pmCHS - MLI
2 stops7h 53mUnited Airlines
Sat 7/123:45 pmMLI - CHS
1 stop4h 48mUnited Airlines
Deal found 6/11$254
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/610:08 amCHS - ORD
1 stop5h 21mUnited Airlines
Tue 9/97:14 amORD - CHS
Nonstop2h 25mUnited Airlines
Deal found 6/12$258
This Southwest deal was found by Cheapflights users on 6/10. 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 8/66:45 pmCHS - MDW
1 stop4h 40mSouthwest
Sun 8/109:00 pmMDW - CHS
Nonstop2h 05mSouthwest
Deal found 6/10$259
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/277:59 pmCHS - PIA
1 stop4h 20mAmerican Airlines
Tue 7/15:00 amPIA - CHS
1 stop6h 06mAmerican Airlines
Deal found 6/12$259
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 8/46:23 pmCHS - MDW
1 stop4h 19mDelta
Sat 8/96:00 amMDW - CHS
1 stop4h 48mDelta
Deal found 6/11$268
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:15 amCHS - ORD
1 stop5h 55mDelta
Mon 8/115:45 amORD - CHS
1 stop7h 05mDelta
Deal found 6/12$268

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 June 12, 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

Thu 7/10

10:53 am-9:52 am

1 stop23h 59m

Lambert-St Louis

Thu 7/17

10:47 am-9:53 am

1 stop22h 06m

$194

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Thu 9/25

11:59 am-7:13 pm

1 stop8h 14m

Lambert-St Louis

Mon 9/29

7:23 am-5:44 pm

1 stop9h 21m

$243

CharlestonMoline

CHS - MLI

CHSMLI

Charleston

Fri 7/4

3:01 pm-8:23 pm

1 stop6h 22m

Moline Quad-City

Sat 7/12

5:26 pm-11:59 pm

1 stop5h 33m

$249

CharlestonChicago

CHS - ORD

CHSORD

Charleston

Thu 8/7

7:56 pm-9:30 pm

Nonstop2h 34m

Chicago O'Hare Intl

Sun 8/10

9:55 am-1:17 pm

Nonstop2h 22m

$249

CharlestonChicago

CHS - ORD

CHSORD

Charleston

Wed 6/25

7:03 am-6:37 am

1 stop24h 34m

Chicago O'Hare Intl

Fri 6/27

9:28 pm-10:29 pm

1 stop24h 01m

$252

CharlestonSt. Louis

CHS - STL

CHSSTL

Charleston

Fri 7/25

3:05 pm-2:39 pm

2 stops24h 34m

Lambert-St Louis

Sun 7/27

10:47 am-9:53 am

1 stop22h 06m

$253

CharlestonMoline

CHS - MLI

CHSMLI

Charleston

Fri 7/4

2:44 pm-9:37 pm

2 stops7h 53m

Moline Quad-City

Sat 7/12

3:45 pm-9:33 pm

1 stop4h 48m

$254

CharlestonChicago

CHS - ORD

CHSORD

Charleston

Sat 9/6

10:08 am-2:29 pm

1 stop5h 21m

Chicago O'Hare Intl

Tue 9/9

7:14 am-10:39 am

Nonstop2h 25m

$258

CharlestonChicago

CHS - MDW

CHSMDW

Charleston

Wed 8/6

6:45 pm-10:25 pm

1 stop4h 40m

Chicago Midway

Sun 8/10

9:00 pm-12:05 am

Nonstop2h 05m

$259

CharlestonPeoria

CHS - PIA

CHSPIA

Charleston

Fri 6/27

7:59 pm-11:19 pm

1 stop4h 20m

Greater Peoria

Tue 7/1

5:00 am-12:06 pm

1 stop6h 06m

$259

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 55 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 June 12, 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 June 12, 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 (4 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
To help decide which airline to fly from Charleston to Illinois, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
725 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Boarding

8.1

Comfort

7.8

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $90. American Airlines flights start at $127 while deals on Delta start at $144 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 (89%), Air Canada (83%) or Air New Zealand (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 $1,730 for a flight from Charleston to Illinois. The cheapest flight overall is $122 while the most popular route, (Charleston - Chicago O'Hare Intl) is currently priced at $157.

  • 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 5 airlines flying from Charleston to Illinois

Discover the top 5 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$81Average$200FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$198Average$367FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$198Average$366FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$285Average$410FlexibilityNo cancel feeOn-time63%
DeltaCheapest$298Average$456FlexibilityNo cancel feeOn-timeN/A

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