$100 Find Cheap Flights from Charleston to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Charleston to Illinois departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Charleston to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago2 stops$282
Moline
Moline1 stop$285
Peoria
Peoria1 stop$309
St. Louis
St. Louisnonstop$199
Chicago
Chicago2 stops$282
Moline
Moline1 stop$285
Peoria
Peoria1 stop$309
St. Louis
St. Louisnonstop$199

Book Cheap Charleston to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Charleston to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Charleston to Illinois

Tue, Jul 28 - Wed, Jul 29
Southwest Logo
1:50 pm - 3:00 pm
CHS
-
STL
2h 10mnonstop
Southwest Logo
3:15 pm - 6:15 pm
STL
-
CHS
2h 00mnonstop
$199Southwest
Tue, Jul 28 - Wed, Jul 29
Southwest Logo
8:15 pm - 11:05 pm
CHS
-
STL
3h 50m
1 stop
Southwest Logo
3:15 pm - 6:15 pm
STL
-
CHS
2h 00mnonstop
$204Southwest
Sat, Oct 10 - Tue, Oct 13
Delta Logo
9:00 am - 1:20 pm
CHS
-
STL
5h 20m
1 stop
Delta Logo
2:25 pm - 8:43 pm
STL
-
CHS
5h 18m
1 stop
$209Delta
Thu, Sep 10 - Mon, Sep 14
American Airlines Logo
2:05 pm - 8:44 pm
CHS
-
STL
7h 39m
1 stop
American Airlines Logo
5:00 am - 1:15 pm
STL
-
CHS
7h 15m
1 stop
$213American Airlines
Wed, Aug 5 - Thu, Aug 6
American Airlines Logo
6:00 am - 10:14 am
CHS
-
STL
5h 14m
1 stop
American Airlines Logo
6:00 am - 11:33 am
STL
-
CHS
4h 33m
1 stop
$232American Airlines
Thu, Sep 10 - Mon, Sep 14
Delta Logo
7:05 am - 9:34 am
CHS
-
STL
3h 29m
1 stop
Delta Logo
7:05 am - 1:05 pm
STL
-
CHS
5h 00m
1 stop
$255Delta
Sun, Sep 13 - Wed, Sep 16
Multiple Airlines Logo
4:43 pm - 3:26 pm
CHS
-
ORD
23h 43m
1 stop
Multiple Airlines Logo
4:49 pm - 8:38 am
ORD
-
CHS
14h 49m
1 stop
$282Multiple Airlines
Fri, Sep 4 - Tue, Sep 8
Multiple Airlines Logo
9:44 pm - 8:08 pm
CHS
-
ORD
23h 24m
2 stops
Multiple Airlines Logo
7:44 pm - 8:38 am
ORD
-
CHS
11h 54m
1 stop
$283Multiple Airlines
Sat, Sep 5 - Wed, Sep 9
United Airlines Logo
10:14 am - 7:03 pm
CHS
-
PIA
9h 49m
2 stops
United Airlines Logo
3:55 pm - 12:11 am
PIA
-
CHS
7h 16m
2 stops
$319United Airlines
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
7:00 am - 2:57 pm
CHS
-
PIA
8h 57m
2 stops
United Airlines Logo
5:50 am - 2:50 pm
PIA
-
CHS
8h 00m
2 stops
$337United Airlines
Booking Insights

KAYAK's insights & trends for Charleston to Illinois flights

Get data-powered insights and trends into flights from Charleston to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Charleston to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Charleston to Illinois departing in September.

What is the cheapest Charleston to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Charleston found in the last 5 days was to Chicago, at $279 round-trip. The most popular route is from Charleston (CHS) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $279.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Charleston to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $406 on average. Morning departures are around 1% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $529.

Can I save money by flying with a layover from Charleston to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $380, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Charleston to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Charleston to Illinois is September, when tickets cost $104 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $237 and $225 respectively.

What’s the cheapest day of the week to fly from Charleston to Illinois?

The average price of all round-trip flights from Charleston to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Charleston to Illinois. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Charleston to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Charleston to Illinois, you should book around 5 weeks before departure, which saves you about 52% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$100
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Charleston to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Charleston to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Charleston to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Charleston to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Charleston to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Charleston to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Charleston to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Charleston to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Charleston to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Charleston to the following destinations at these prices or less: Chicago $178 one-way - $388 round-trip; Chicago $227 one-way - $357 round-trip

Reviews of the top 4 airlines serving from Charleston to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Charleston to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Charleston to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4250 reviews
7.0Food
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Great flight. I didn't get a drink because I was asleep whole on the flight.

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

WiFi was not working and didn’t have a beverage service

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

I think Southwest can offer a whole can of beverage instead of such a small cup

It was as good as it could be. Flying is not a pleasant experience these days.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

Got on the plane and sat there for an hour before departure.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

Cramped seating for me. Luckily it wasn’t a long flight

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

5 hour delay. They blamed the weather but it was the computer issues they had been dealing with for days.

The only real hiccups in the flight were things beyond Delta’s control - turbulence which delayed food service and a departure delay caused by some VIP plane which stopped all departures and landings for 30 minutes - and was never explained to us by the crew. Otherwise good flight. I would fly Delta again.

The plane was frigid, and leaked water from the ceiling all over me and my seat.

1 flight cancelled Had to fly out of different city Flight at new departure city was delayed 3 hours causing us to miss connecting flights. By the time we did make it to Prague our luggage did not. Had to wait day and a half for luggage to be delivered. Customer service was not good. Agents did not arrive at gate until 5-10 minutes before boarding

Awful. Delayed flights, missed connection to Toronto. Hotel vouchers were for already booked hotels x3. Giant waste of my time

Boarding was great, and the crew were very friendly. The seats must have been a bit on the older side and you could feel some of the seat components through the padding. Also, the plugs did not work on the row's entertainment screen or charging ports. Checked bag was transferred for connecting flight, and we appreciated how early we had the connecting gate information.

Very easy ! Use the kiosk and bag drop and right to security within 10 min

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The flight and boarding were easy peasy. I was traveling with my 4-year-old, so a smooth boarding experience was especially appreciated. My only piece of feedback is really about where our gate was in O'Hare. They've shoved four gates into a tiny corner of the B terminal and there isn't early enough room or seating for everyone. Not United's problem, but did dent the overall experience.

The planes can use an actual cleaning. The armrest and seats do not appear to be cleaned on this one and most other planes.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

Flight was fine, but not having WiFi was a major negative

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

Would have thought that they would gas up plane before everyone got on board

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

American switched my flight to a 5 hour layover then cancelled my whole reservation with no notice and refused refund. Won’t fly with them again.

We sat on runway for an 1 hour because they were short handed at key west airport was not fun

The WiFi and app don’t work as easily as other airlines

Late. Then next flight was an hour late due to mx.

Everything you need to know for your flight from Charleston to Illinois

Information on your arrival and departure airports