A castle-like building with a tall tower, traffic lights, and a crosswalk.

Cheap Flights to Charleston , IL from CA $164

View CA $164 flight on Thu, Oct 29, 2026Opens in a new window

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How much is the cheapest flight to Charleston?

Prices were available within the past 7 days and start at CA $164 for one-way flights and CA $416 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Southwest Airlines
Delta
United
Air Canada

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

From CA $255 - CA $1,105 per traveller.

Frequently asked questions

What is the name of Charleston's airport?
Charleston has multiple airports, but most visitors use Lambert-St. Louis Intl. Airport (STL).
What airport is best to fly into Charleston?
A flight to Charleston means hitting the tarmac at Willard Airport. Step off the plane, grab your baggage and you'll be 64 kilometres from the centre of town.
How many airlines fly to Charleston?
Charleston is serviced by 12 air carriers from at least 61 airports across the globe.
Which airlines fly to Charleston?
United Airlines and American Airlines are some of the top airlines with flights to Charleston. Travellers often choose Chicago to set off from with United Airlines operating the most flights on this route.
How many nonstop flights are there to Charleston?
With approximately 1,240 direct flights running each week, you'll be hitting the tarmac in Charleston before you can say, "Are we there yet?"
Where are the most popular flights to Charleston departing from?
A large number of flights to Charleston depart from Chicago, Dallas and New York airports.
How long is the flight to Charleston Airport?
If you're heading to Charleston from Chicago, you're looking at a flight duration of 1 hour and 15 minutes. Those leaving from Dallas can expect to be travelling for 1 hour and 49 minutes. From New York it's around 3 hours and 1 minute away.
How to book the cheapest flight to Charleston?
We've all come across those lucky jet-setters who somehow get incredibly cheap airfares wherever they go. Would you like to know how to do it for your Charleston vacation? Don't leave it until the last minute to lock in your flight. Another good way to pick up the best price is to shop around. If your destination has a few airports, research the cost of flying into a less busy terminal. Lastly, be prepared to secure your seat quickly if you stumble on a great price. It might not be available for long. With a bit of know-how and a little good fortune, the ideal airfare can be yours.
Do you have any tips for my flight to Charleston?
We've got the lowdown on how to make your journey a stress-free experience. Follow our tips and tricks and you'll be hightailing it through airport security and having a ball in Charleston before you know it. What to pack in your hand luggage:
  • It's easy — first, pack your passport, travel documents, credit cards and daily medications. Next, you'll need some entertainment to while away the hours. A juicy novel and a phone filled with your favourite movies are some terrific options. If you plan to catch forty winks, a neck pillow and a pair of earplugs will also be useful. Finally, leave some space for a toothbrush and some cleansing wipes so you'll step off the plane looking fresh and ready to go.
Do not pack the following items in your hand luggage:
  • Double-check that you don't have sharp objects (like a pocket knife) hiding in your carry-on luggage. Other restricted items include explosive or flammable substances, such as aerosol cans and bleach, and liquids and gels in containers larger than 3.4 ounces (100 millilitres).
What to wear on a flight:
  • Comfort should be your highest priority when deciding what to wear on board. Loose, breathable clothing is a smart choice, as are flat, slightly roomy shoes.
  • Deep vein thrombosis (DVT) can pose a risk on long-haul flights. It's the result of blood clots forming due to inactivity and poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression tights or socks.
How to get through airport security fast when flying to Charleston?
The secret is to be well organized before you reach the airport security gate. That way, you'll be hopping onto that plane to Charleston in no time at all. Follow these helpful tips and get your vacation off to a great start:
  • Have your passport and boarding pass at hand. They're the first items you'll be asked to show at security.
  • Next up is the X-ray machine. Remove anything on you that is likely to set off the scanner's alarm. This includes things like headphones or earphones, as well as heavy jackets or coats. They'll need to be placed on the conveyor belt for screening.
  • Your electronic devices like phones and laptops will also have to go on a tray for inspection. Don't worry though, you'll be back online before you know it.
  • Don't forget to remove liquids and gels from your carry-on bag. They often need to be sent through the X-ray scanner separately. Each product should be no larger than 3.4 ounces (100 millilitres) and everything must fit inside a quart-size (one litre), clear zip-close bag.
  • It's also likely that you'll be required to take your shoes off to be X-rayed, so wearing lightweight sneakers is always a smart idea.
  • Airlines will not allow any sharp objects in your carry-on luggage. If you must bring these kinds of items, pack them in your checked luggage.

Book with confidence

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 using the search bar to enter your travel dates, origin airport, and whether you want a 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 CA $416 - CA $774, and one-ways Charleston start as low as CA $164.

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: American Airlines, Southwest Airlines, Delta, United, Air Canada. 

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 programmes 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 on 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 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 October and in October 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.

Find Your Flights to Charleston CMI

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
CA $420

Trending flights to Charleston

Prices were available within the past 7 days and start at CA $164 for one-way flights and CA $416 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United

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