Cheap Flights to St. Charles: St. Charles Flight Deals

View €43 flight on Thu, 20 Nov 2025Opens in a new window

Popular airlines to St. Charles

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Cheap round-trip flights to St. Charles

Prices were available within the past 7 days and start at €43 for one-way flights and €82 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 31 Oct - Mon, 3 Nov
ORD
Chicago
STL
St. Louis
€82 Return, found 6 days ago
€82
Return
found 6 days ago
Select American Airlines flight, departing Fri, 31 Oct from Chicago to St. Louis, returning Mon, 3 Nov, priced at €82 found 6 days ago
United
Fri, 31 Oct - Mon, 3 Nov
ORD
Chicago
STL
St. Louis
€133 Return, found 6 days ago
€133
Return
found 6 days ago
Select United flight, departing Fri, 31 Oct from Chicago to St. Louis, returning Mon, 3 Nov, priced at €133 found 6 days ago
Delta
Thu, 20 Nov - Mon, 24 Nov
MDW
Chicago
STL
St. Louis
€136 Return, found 15 hours ago
€136
Return
found 15 hours ago
Select Delta flight, departing Thu, 20 Nov from Chicago to St. Louis, returning Mon, 24 Nov, priced at €136 found 15 hours ago
British Airways
Fri, 31 Oct - Sun, 16 Nov
FRA
Frankfurt
STL
St. Louis
€523 Return, found 23 hours ago
€523
Return
found 23 hours ago
Select British Airways flight, departing Fri, 31 Oct from Frankfurt to St. Louis, returning Sun, 16 Nov, priced at €523 found 23 hours ago
Scandinavian Airlines
Wed, 10 Dec - Thu, 15 Jan
DUB
Dublin
STL
St. Louis
€545 Return, found 4 hours ago
€545
Return
found 4 hours ago
Select Scandinavian Airlines flight, departing Wed, 10 Dec from Dublin to St. Louis, returning Thu, 15 Jan, priced at €545 found 4 hours ago

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

October is typically the cheapest month to fly

From €117 - €776 per traveller.

Frequently asked questions

What is the name of St. Charles' airport?
Book a flight to St. Charles and you'll be arriving at Lambert-St. Louis Intl. Airport (STL).
How far is STL from central St. Charles?
Lambert Field is 13 kilometres from central St. Charles, so expect a bit of a commute into the heart of the city.
What airport is best to fly into St. Charles?
Pass through the exit doors of Lambert-St. Louis Intl. Airport (STL) and your St. Charles getaway will have begun! The city's main airport, it's located 13 kilometres from the centre of town.
How many airlines fly to St. Charles?
There are 12 air carriers that service St. Charles from 61 airports across the globe.
Which airlines fly to St. Charles?
United Airlines and American Airlines offer the most flights to St. Charles. One of the most popular ways to get there is on a United Airlines flight from Chicago.
How many nonstop flights are there to St. Charles?
Flying to someplace new is much more straightforward when there aren't any annoying stopovers. If you're heading to St. Charles, the awesome news is that there are roughly 1,206 nonstop flights each week.
Where are the most popular flights to St. Charles departing from?
Flights to St. Charles departing from Chicago, Dallas and New York airports are the most sought after.
How long is the flight to St. Charles Airport?
Which city you depart from determines how long you'll be strapped into your seat. From Chicago to St. Charles, the average flight time is 1 hour and 22 minutes. From Dallas it's more like 1 hour and 43 minutes, and from New York it's 3 hours and 1 minute.
How to book the cheapest flight to St. Charles?
Don't leave locking in your flight to St. Charles until the very last minute. That's one trick seasoned jet-setters use to get the best deals. Booking ahead means more options and more affordable flights. Don't stop there, though. Do some research and check if there are a few airports at your destination. Fares often differ depending on the airport you jet into. Be sure to compare fares across airlines too. Lastly, another simple way to save some money is be ready to book at a moment's notice. If you stumble on an irresistible deal, don't think twice — snap it up while you can.
Do you have any tips for my flight to St. Charles?
Depending on where you're coming from, your flight to St. Charles could be no sweat at all or it could go on forever. Here are some useful tips that will help you start your unforgettable escape on a positive note. What to pack in your hand luggage:

  • A plane ride can be a stress-free experience if you bring the right things. Firstly, you'll want some basic toiletries, such as a toothbrush and lip balm, a fresh set of clothes and a few magazines. Next, make room in your carry-on bag for your phone and charger, any medications and maybe a proper neck pillow as well. Last, but definitely not least, be sure to bring your passport, travel papers and your credit cards.

Do not pack the following items in your hand luggage:

  • Check carefully that you don't have sharp objects (like a pocket knife) hiding in your hand luggage. Other restricted items include flammable or explosive goods, such as aerosol cans and fuel, and liquids and gels in containers larger than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Go for comfort over style. Prepare for changes in cabin temperature by wearing layers, and pick flat, enclosed footwear like slip-ons.
  • You're probably aware of deep vein thrombosis (DVT), a blood clot condition caused by prolonged periods of inactivity. To lessen your risk on board, drink lots of water, consider wearing compression socks and keep your feet and legs moving.

How to get through airport security fast when flying to St. Charles?
It's easy — be prepared. We've pulled together some tips and tricks for a speedy trip through airport security. Watch out St. Charles, here you come:

  • Your boarding pass and travel ID will need to be inspected by airport security personnel. Have them easily accessible to avoid fumbling around for them.
  • The X-ray machine comes next. Remove anything metal on you that is likely to beep. This includes things like earphones or headphones, as well as heavy coats or jackets. They'll need to be placed on the conveyor belt for screening.
  • All your electronics, including your tablet and phone, must also be scanned.
  • Any liquids or gels, such as lip balm or cologne, that you want to take on board need to be in containers no greater than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), clear zip-lock bag.
  • There's a possibility that you'll be required to take your shoes off to be X-rayed, so wearing slip-on shoes is always a clever idea.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them safely away in your checked suitcase. They won't be allowed on board and will be confiscated.

Book with confidence

Expedia.ie is an online travel company that specialises in securing the best prices for flights to St. Charles. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to St. Charles. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to St. Charles, or are just on the lookout for the best flights to St. Charles, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in St. Charles to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Travel information

Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Return price
€81

Trending flights to St. Charles

Prices were available within the past 7 days and start at €43 for one-way flights and €82 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, 10 Dec - Thu, 15 Jan
DUB
Dublin
STL
St. Louis
€545 Return, found 4 hours ago
€545
Return
found 4 hours ago
Select Scandinavian Airlines flight, departing Wed, 10 Dec from Dublin to St. Louis, returning Thu, 15 Jan, priced at €545 found 4 hours ago

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