$34 Cheap Flights to Charleston , IL

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How much is the cheapest flight to Charleston?

Prices were available within the past 7 days and start at $34 for one-way flights and $63 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Frontier Airlines
American Airlines
Spirit Airlines
United

Find Your Flights to Charleston CMI

Cheap flights to Charleston (CMI)

Get started finding a cheap flight to Charleston on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Charleston.

Roundtrip prices range from $63 - $159, and one-ways to Charleston start as low as $34.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Charleston (CMI)

You have several options for which airline you choose to travel with to Charleston. There are 10 airlines flying into CMI: Frontier Airlines, Spirit Airlines, American Airlines, United. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programs may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel in one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at the optimal times. Airfare to Charleston (CMI) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to CMI in April and in April for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24-hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

How do I find cheap flights to Charleston that have flexible change policies?
By using our clever “No change fee” filter, that’s how. Just type in your origin, destination and dates, click “Search,” then tick the box directly underneath the “Flexible change policies” heading (to the left of your screen). Expedia makes it a snap to find affordable, flexible flights to Charleston.
How can I book the cheapest flight to Charleston?
If you’d like to have some extra cash to play with during your trip to Charleston, it’s always better to book in advance. Prices are usually more expensive close to the departure date. Consider your airport options too. Airfares vary depending on which airport you jet into. Don’t forget to compare prices across airlines and if possible, be flexible with your dates. Finally, be ready to act fast. If you come across a bargain, grab it while you can! Currently, one of the cheapest one-way tickets to Charleston costs $34. This is for a flight that takes off from Las Vegas in April.
Which day of the week is the best day to buy a plane ticket to Charleston?
According to our research, Sunday is the best day to purchase plane tickets. Airfares do fluctuate with demand though, so it’s wise to check prices regularly. Like another insider tip? Browse prices to Charleston as soon as you have your travel dates and be ready to book as soon as you spot a bargain. The optimal booking window ranges from 21 days to about 45 days out from departure, so the earlier you start your search, the better your odds of scoring an epic deal! Savings are subject to change and may vary depending on selections made.
Which airlines fly to Charleston?
From departure to arrival, you can look forward to a comfortable onboard experience with American Airlines. One of 9 airlines that connects Charleston with 60 airports around the globe, it operates the greatest number of services between Chicago and Charleston. United Airlines is another sought-after choice with many travelers.
How many nonstop flights are there to Charleston?
Organizing an exciting Charleston vacation is child’s play when there are 1,301 nonstop flights every week to select from.
Where are the most popular flights to Charleston departing from?
Flights to Charleston departing from Chicago, Dallas and Denver airports are highly sought after.
Do you have any tips for my flight to Charleston?

  • Get your vacation off to a great start by being well prepared. Pack the important stuff — like your passport, travel documents and any medications you need — first. After that, think about downloading some movies on your tablet for a binge session sans guilt. Or, bring that bestseller you haven’t had time to read. Lastly, a few healthy snacks and a memory-foam neck pillow will help make your trip as comfortable as possible.
  • You’ll also want to check with your airline regarding what you can’t take on board your flight. Utility knives, razor blades, swords and batons are among the prohibited items. Anything sharp, flammable or explosive is generally not allowed in your carry-on bag. Remember to pack any sports equipment like baseball bats or tennis rackets only in your checked luggage.

What to wear on a flight:

  • Whether traveling short or long-haul, layering up is key to staying comfortable. Choose loose, natural fabrics that will keep you cool and bring a sweater to cope with any variations in cabin temperatures. Your feet will be happiest in a pair of sneakers or closed-toe shoes.
  • The condition called deep vein thrombosis (DVT) is a risk on long-distance flights. It’s the result of blood clotting caused by poor circulation and inactivity. Walking up and down the aisle and doing foot and leg exercises while seated can help prevent this developing. Wearing compression tights or socks can also help to reduce your risk.

How can I get a cheap last-minute flight to Charleston?
The key to booking a cheap last-minute flight to Charleston is to stay flexible. You can land an incredible deal if you’re not tied to particular airlines, flight times and travel dates. Also compare the prices of flying out of and into nearby airports if that’s a possibility.
Where can I learn more about changing or canceling my flight to Charleston?
Most flights are free to cancel within 24 hours of making the reservation. However, some flights are non-refundable, and you may receive a flight credit from the airline to use for a future booking. For more information, please visit our Customer Service Portal.
Flights to Charleston information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Airlines serving
American Airlines
Roundtrip price
$108
Popular airline
American Airlines

Trending flights to Charleston

Prices were available within the past 7 days and start at $34 for one-way flights and $63 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
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