Cheap flights To St. Charles (CHI) from $54

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Cheap Flights to St. Charles from $54 One Way, $98 Round Trip

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Sat, Dec 12 - Wed, Dec 16
DFW
Dallas-Fort Worth Intl.
MDW
Midway Intl.
$98 Roundtrip, found 3 days ago
$98
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Dec 12 from Dallas-Fort Worth Intl. to Midway Intl., returning Wed, Dec 16, priced at $98 found 3 days ago
Thu, Nov 26 - Thu, Dec 3
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$108 Roundtrip, just found
$108
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 26 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Thu, Dec 3, priced at $108 just found
Sat, Jan 23 - Mon, Jan 25
ATL
Hartsfield-Jackson Atlanta Intl.
MDW
Midway Intl.
$123 Roundtrip, found 4 hours ago
$123
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Jan 23 from Hartsfield-Jackson Atlanta Intl. to Midway Intl., returning Mon, Jan 25, priced at $123 found 4 hours ago
Wed, Jan 6 - Sat, Jan 16
IAH
George Bush Intercontinental
ORD
O'Hare Intl.
$135 Roundtrip, found 11 hours ago
$135
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Wed, Jan 6 from George Bush Intercontinental to O'Hare Intl., returning Sat, Jan 16, priced at $135 found 11 hours ago
Wed, Dec 16 - Wed, Jan 6
DFW
Dallas-Fort Worth Intl.
ORD
O'Hare Intl.
$136 Roundtrip, found 3 days ago
$136
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Wed, Dec 16 from Dallas-Fort Worth Intl. to O'Hare Intl., returning Wed, Jan 6, priced at $136 found 3 days ago
Tue, Jan 5 - Sat, Jan 16
IAH
George Bush Intercontinental
MDW
Midway Intl.
$155 Roundtrip, found 11 hours ago
$155
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Tue, Jan 5 from George Bush Intercontinental to Midway Intl., returning Sat, Jan 16, priced at $155 found 11 hours ago
Wed, Dec 9 - Tue, Dec 15
LAX
Los Angeles Intl.
ORD
O'Hare Intl.
$155 Roundtrip, found 1 day ago
$155
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Dec 9 from Los Angeles Intl. to O'Hare Intl., returning Tue, Dec 15, priced at $155 found 1 day ago
Sat, Dec 5 - Sat, Dec 5
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$192 Roundtrip, found 2 days ago
$192
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Dec 5 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Sat, Dec 5, priced at $192 found 2 days ago
Sat, Dec 5 - Wed, Dec 9
SFO
San Francisco Intl.
ORD
O'Hare Intl.
$192 Roundtrip, found 1 day ago
$192
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Dec 5 from San Francisco Intl. to O'Hare Intl., returning Wed, Dec 9, priced at $192 found 1 day ago
Wed, Feb 17 - Tue, Feb 23
ATL
Hartsfield-Jackson Atlanta Intl.
ORD
O'Hare Intl.
$197 Roundtrip, found 12 hours ago
$197
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Wed, Feb 17 from Hartsfield-Jackson Atlanta Intl. to O'Hare Intl., returning Tue, Feb 23, priced at $197 found 12 hours ago

St. Charles Flight Information

Traveling To
St. Charles
Destination Airport IATA Code
CHI
Number of Airlines Serving
Airlines
Frontier Airlines, Delta, American Airlines
Flight Price
$98
Earliest Departing Flight
Latest Departing Flight

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St. Charles economy flight packages

Price found within the past 48 hours. Click for updated prices.
Sheraton Grand Chicago Riverwalk
4.0-star property

Sheraton Grand Chicago Riverwalk

Dec 20 - Dec 23

3 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Price was $648, price is now $456 per person
$456
per person
found 1 day ago
Level Chicago Fulton Market
4.0-star property

Level Chicago Fulton Market

Dec 24 - Dec 29

5 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Price was $857, price is now $557 per person
$557
per person
found 1 day ago
Park Hyatt Chicago
5.0-star property

Park Hyatt Chicago

Dec 10 - Dec 13

3 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • Coach
Price was $1,825, price is now $1,236 per person
$1,236
per person
found 1 day ago
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St. Charles premium economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Talbott, Autograph Collection
4.5-star property

The Talbott, Autograph Collection

9.4/10 Exceptional! (185 reviews)

Dec 27 - Dec 31

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • PremiumEconomy
Price was $726, price is now $545 per person
$545
per person
found 1 day ago

Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

9.4/10 Exceptional! (5,555 reviews)

Dec 31 - Jan 3

3 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • PremiumEconomy
Price was $1,044, price is now $763 per person
$763
per person
found 1 day ago

Eurostars Magnificent Mile
4.0-star property

Eurostars Magnificent Mile

9/10 Wonderful! (3,962 reviews)

Dec 27 - Dec 31

4 night stay

Atlanta (ATL) to Chicago (ORD)

Frontier Airlines • Roundtrip • PremiumEconomy
Price was $810, price is now $602 per person
$602
per person
found 1 day ago

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St. Charles first class flight packages

Price found within the past 48 hours. Click for updated prices.
Eurostars Magnificent Mile
4.0-star property

Eurostars Magnificent Mile

9/10 Wonderful! (3,962 reviews)

Dec 18 - Dec 20

2 night stay

Atlanta (ATL) to Chicago (ORD)

Delta • FirstClass

Chicago (ORD) to Atlanta (ATL)

Frontier Airlines • FirstClass
Price was $922, price is now $784 per person
$784
per person
found 19 hours ago

Hotel Riu Plaza Chicago
4.0-star property

Hotel Riu Plaza Chicago

9.4/10 Exceptional! (5,555 reviews)

Dec 18 - Dec 20

2 night stay

Atlanta (ATL) to Chicago (ORD)

Delta • FirstClass

Chicago (ORD) to Atlanta (ATL)

Frontier Airlines • FirstClass
Price was $945, price is now $791 per person
$791
per person
found 19 hours ago

Trump International Hotel & Tower Chicago
5.0-star property

Trump International Hotel & Tower Chicago

9.6/10 Exceptional! (2,057 reviews)

Dec 18 - Dec 20

2 night stay

Atlanta (ATL) to Chicago (ORD)

Delta • FirstClass

Chicago (ORD) to Atlanta (ATL)

Frontier Airlines • FirstClass
Price was $1,299, price is now $1,090 per person
$1,090
per person
found 19 hours ago
Beautiful hotel situated perfectly for most downtown Chicago activities. Attentive staff and amazing views from our 14th floor lake view room. This stay has been on my bucket list for awhile. This hotel experience did not disappoint

Reviewed on Nov 6, 2026

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St. Charles

Start your search for cheap flights to St. Charles on Orbitz. Orbitz is where you will discover guaranteed low prices on St. Charles flights, as well as all of the following conveniences:

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Low Prices Guaranteed on Flights to St. Charles

Orbitz offers large discounts on a wide range of St. Charles flights. Through our easy-to-use site, you can find, plan, and reserve your desired flights to St. Charles while taking advantage of the lowest fares around.

Customer Care When You Need It

Orbitz is dedicated to making your flight booking experience as stress-free as possible. If you need to cancel your reservation, you can do so at your own convenience by going to the Orbitz website. If you need to change your flights to St. Charles to another time or date, you can contact our customer service representatives by phone, and they help you make the flight adjustments you need.

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Orbitz lets you add your loyalty or frequent flyer account numbers when you book qualifying flights to St. Charles. So don’t worry about missing out on earning miles or points simply because you aren’t booking with the airline directly. You can save on your flights, and rack up miles too.

Frequently asked questions

Which airlines fly to St. Charles?
With 20 airlines offering services to O'Hare Intl. Airport (ORD), a major gateway to St. Charles, the choice is all yours. Grab a fabulous deal among these top international carriers that'll get you to this city:

  • United Airlines - 612 flights to St. Charles per month
  • American Airlines - 339 flights to St. Charles per month
  • Air Canada - 190 flights to St. Charles per month

What is the best airport to fly to in St. Charles?
Keep your eyes open for an amazing flight deal to O'Hare Intl. Airport (ORD). It's the city's main terminal and is situated roughly 25 miles east of the center. Once you've walked out of arrivals, it won't be long before you're soaking up the delights of St. Charles.
How much is a flight to St. Charles?
Fares for return flights dipped as low as $98 this past week to St. Charles, and rose to a high of $197. Some lucky travelers journeying out of Atlanta (ATL) managed to snap up one-way flights from just $54.
How to book the cheapest flight to St. Charles?
Landing cheap flights to St. Charles is as simple as booking with Orbitz. But if you want to make sure you're nabbing the best flight deals around, here are a few tips to follow:

  • Departing from or landing at other airports can sometimes save you money. Enter your preferred departure and arrival points. Next, select the 'Nearby airports' function below to see your options.
  • Also, click on the 'Show flexible dates' option to view the airfares on days around your selected departure. It's possible to score cheaper flight deals if your travel plans are flexible.
  • To refine your results, click on 'Show options.' You can search based on airlines, seating class, and nonstop and refundable flights. You can also select whether you want to fly in the morning, afternoon or evening under 'Sort & Filter' to the left.
  • Book your fare as soon as you know your travel dates. While it does happen now and then, tickets rarely fall in price as your date of departure gets closer.
  • Bundle your hotels, flights and car rentals into one convenient package deal. Save your hard-earned cash for things you're really excited about, like discovering every corner of St. Charles.
  • Flying during the busy season often means steep airfares. If possible, plan your trip outside of popular periods, such as Thanksgiving, New Year's Eve and Easter.

How long is a flight to St. Charles?
Your city of origin, which airport you leave from and whether your journey is direct — the flight duration depends on lots of things. But we've listed the average times for some of the most well-known routes to St. Charles:

  • New York, NY (LGA-LaGuardia) to O'Hare Intl. Airport (ORD) - 2 hours and 40 minutes
  • Boston, MA (BOS-Logan Intl.) to O'Hare Intl. Airport (ORD) - 2 hours and 51 minutes
  • Washington, DC (DCA-Ronald Reagan Washington National) to O'Hare Intl. Airport (ORD) - 2 hours and 13 minutes

What is the best time to book a flight to St. Charles?
Pick up a bargain and secure your seats to St. Charles in January. If you've missed this month, fear not. February and August often have low airfares available, too. Make sure you don't sleep on a sale though — cheap flights pop up and vanish in an instant!
What day of the week is the cheapest to book a flight to St. Charles?
In general, Tuesdays, Wednesdays and Saturdays are the cheapest days of the week to book a flight to St. Charles. If you want the best airfares, search across those days and you could land yourself a great flight deal.
What is the cheapest day of the week to fly to St. Charles?
Based on Orbitz data from 2020, Monday is usually the best day for cheap flights to St. Charles. Tuesday also has wallet-friendly airfares, whereas Saturday has the most expensive ticket rates. Although flying out at the weekend may be easier to arrange, you'll have more cash to play with if you take off at the start of the week.
What is the cheapest month to fly to St. Charles?
To secure cheap flights to St. Charles, pack your bags and jet off in August. Orbitz data shows that this is generally the best month to save on your airfare. If you're considering flying to St. Charles during June, it's worth noting that this is the most expensive time of year to travel.
Which airlines allow free cancellation?
Orbitz makes it a cinch to find carriers offering fare flexibility. Simply select "Filter by flexible change policies" when searching for your St. Charles flights and hey presto! We'll show you options that include free cancellation, no change fees and of course, the very best price.
What do I need for the flight to St. Charles?
The key to a comfortable and successful flight is to prepare well. Here are some handy tips to help you get ready for your trip:

  • Whether you print it out beforehand or use an electronic one, you'll need your boarding pass to walk on to the plane. You'll also need some kind of government-issued ID. If you're traveling internationally, make sure your passport is valid.
  • To keep you entertained on your short trip to St. Charles, download some new songs or restock the audiobook library on your smartphone. Food can also be a delicious distraction while in the air, so maybe even bring some light snacks.
  • Even if you're flying when it's sweltering outside, carry a hoodie or sweater on board with you. Airplane cabins can get downright chilly.

How many direct flights are there to St. Charles?
There are 2,332 flights that head straight to St. Charles every month, which means you won't have to deal with tiresome stopovers. Book a fare with United Airlines or American Airlines and then settle back and enjoy the flight. Delta Air Lines, Southwest Airlines, Spirit Airlines and Air Canada also provide nonstop services to St. Charles.
How do I get cheap first-class/business deals to St. Charles?
There are ways of booking business or first-class airfares to St. Charles that won't burn through your savings. Snap up a seat at the front of the plane for less with these handy hints:

  • Being flexible isn't just a yoga thing. Have some room to move around your travel dates so you can pick up more affordable airfares when they pop up.
  • Many low-cost airlines have top-notch business-class seating without the hefty fees.
  • Bid for an upgrade in online auctions or upgrade your seat with points earned through loyalty programs.

How to get into St. Charles from the airport?
Book an O'Hare Intl. Airport (ORD) car rental at O'Hare Intl. Airport (ORD) with one of the two reputable outlets on-site, Thrifty Car Rental or Dollar. Central St. Charles is around 25 miles away to the west of ORD. After filing off the plane, pick up your set of wheels and get there in a flash. Public transportation and taxis are another two ways to travel into the center. Spend some time wandering around St. Charles, then head out further afield with one of our St. Charles car rentals conveniently located downtown.
What is the best time to go to St. Charles?
Anytime is a great time to experience St. Charles, though March, May and November are the most popular months. Like most places in the Northern Hemisphere, summertime starts June 20. If you'd prefer to spend most of your days in a short-sleeved top than a winter coat, this time of the year would be ideal. Expect average daily highs of 80 ºF and nighttime lows around 65 ºF.

More to Explore

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.