HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Charles

$54+ Cheap flights from Atlanta (ATL) to St. Charles, MO

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — STL
Feb 3 — Feb 101
Mon 2/3
Mon 2/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Atlanta to St. Charles with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Atlanta Hartsfield-Jackson to St. Charles are usually found in August or October, booked 89 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from Atlanta to St. Charles

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) to St. Charles (CH5). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$260
(CheapOair)

One-way from

$54
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$311
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Lambert-St Louis flights.
Search Deals
From Atlanta Hartsfield-Jackson to St. Charles
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to St. Charles
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Atlanta to St. Charles

Cheapest flights from Atlanta to St. Charles
Explore the most affordable flight options available from Atlanta to St. Charles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2025.

This CheapOair deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/149:43 pmATL - STL
1 stop12h 26mSpirit Airlines
Sun 3/165:38 pmSTL - ATL
1 stop13h 53mSpirit Airlines
Deal found 1/28$260
This Cheapflightsfares deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/310:29 pmATL - STL
1 stop26h 02mFrontier
Thu 2/68:31 pmSTL - ATL
1 stop8h 32mFrontier
Deal found 1/28$261
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/710:30 pmATL - STL
1 stop14h 04mMultiple Airlines
Mon 3/1012:15 pmSTL - ATL
3 stops28h 59mMultiple Airlines
Deal found 1/28$262
This Southwest deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2810:20 amATL - STL
Nonstop1h 50mSouthwest
Mon 4/214:05 pmSTL - ATL
Nonstop1h 35mSouthwest
Deal found 1/28$266
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/195:00 amATL - STL
1 stop6h 58mAmerican Airlines
Sat 2/2212:00 pmSTL - ATL
1 stop4h 43mAmerican Airlines
Deal found 1/29$267
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/218:30 amATL - STL
Nonstop1h 44mDelta
Mon 3/247:10 pmSTL - ATL
Nonstop1h 39mDelta
Deal found 1/28$283
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/310:20 amATL - STL
1 stop5h 16mUnited Airlines
Mon 3/1011:05 amSTL - ATL
2 stops11h 54mUnited Airlines
Deal found 1/29$336

Find flights from Atlanta to St. Charles within your budget

Customize your flight search to find flights from Atlanta to St. Charles that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Fri 3/14

9:43 pm-9:09 am

1 stop12h 26m

Lambert-St Louis

Sun 3/16

5:38 pm-8:31 am

1 stop13h 53m

$260

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Fri 3/7

10:30 pm-11:34 am

1 stop14h 04m

Lambert-St Louis

Mon 3/10

12:15 pm-6:14 pm

3 stops28h 59m

$262

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Fri 2/28

10:20 am-11:10 am

Nonstop1h 50m

Lambert-St Louis

Mon 4/21

4:05 pm-6:40 pm

Nonstop1h 35m

$266

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sat 2/8

9:59 pm-11:31 pm

1 stop26h 32m

Lambert-St Louis

Mon 2/10

5:05 pm-5:56 pm

1 stop23h 51m

$269

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Fri 2/28

5:20 pm-6:01 pm

Nonstop1h 41m

Lambert-St Louis

Mon 3/3

7:15 am-9:55 am

Nonstop1h 40m

$270

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sat 2/22

11:00 am-4:21 pm

2 stops6h 21m

Lambert-St Louis

Mon 2/24

4:33 pm-12:47 am

1 stop7h 14m

$272

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Tue 3/4

3:31 pm-10:05 am

2 stops19h 34m

Lambert-St Louis

Wed 3/5

3:32 pm-9:44 pm

1 stop5h 12m

$376

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Fri 2/28

4:03 pm-2:25 pm

2 stops23h 22m

Lambert-St Louis

Mon 3/3

3:21 pm-3:03 pm

2 stops22h 42m

$669

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Thu 5/8

7:45 pm-12:01 am

1 stop5h 16m

$54

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Wed 3/26

11:59 am-3:31 pm

1 stop4h 32m

$99

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 15 results
1
2

Best time to book a flight from Atlanta to St. Charles

Have a flexible travel schedule? Discover the best time to fly to St. Charles from Atlanta with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Atlanta to St. Charles

Get recent, data-driven insights about flights from Atlanta to St. Charles including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Atlanta to St. Charles?

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to St. Charles. Price data was last updated on January 24, 2025.

The best time to book flights from Atlanta to St. Charles is 89 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Atlanta to St. Charles?

Currently, August is the cheapest month in which you can book a flight from Atlanta to St. Charles (average of $311). Flying from Atlanta to St. Charles in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ATL to CH5?

Find hourly flight availability from Atlanta to St. Charles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Atlanta to St. Charles as you normally would.

What is the cheapest day to fly from Atlanta to St. Charles?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to St. Charles. Price data was last updated on May 26, 2024.

Travelers seeking maximum savings on their Atlanta to St. Charles flight should consider departing on Thursday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Atlanta to St. Charles

Explore weekly flight availability from Atlanta to St. Charles. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 29, 2025.

The most flights from ATL to CH5 are scheduled on a Monday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 on average).

Rainfall in St. Charles by month

Plan your trip to St. Charles by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Charles ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Charles when rainfall is around 2.2 in.

Temperature in St. Charles by month

Plan your trip to St. Charles by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Charles, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Charles

Get insights into the airlines that provide service to St. Charles. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Charles. Reviews last updated January 29, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from Atlanta to St. Charles by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,592 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,592 reviews
Southwest
8.1
Very good
4,592 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,688 reviews
Southwest
8.1
Very good
4,592 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,456 reviews
Southwest
8.1
Very good
4,592 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,916 reviews
Southwest
8.1
Very good
4,592 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,592 reviews

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Entertainment

7.7

Crew

8.7

Reviews

1 / 20

6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Atlanta to St. Charles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Atlanta to St. Charles?

    Located just 8.2 mi from the city center, Atlanta Hartsfield-Jackson is the airport most travelers will use when flying to St. Charles from Atlanta. Booking flights from Hartsfield-Jackson (ATL) to St. Charles should be relatively easy as there are 25 daily outbound flights to St. Charles from 6 different airlines.

  • How popular is this Atlanta to St. Charles flight route?

    Flights from Atlanta Hartsfield-Jackson to St. Charles have been viewed 8 times in the past calendar month.

  • What are the cheapest airlines to fly from Atlanta to St. Charles one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $54. Users have also found prices from $99 and $107 on United Airlines and Spirit Airlines, respectively.

  • What are the most reliable airlines from Atlanta to St. Charles?

    No one likes to see their flight delayed. When booking a flight from Atlanta to St. Charles consider choosing Delta (84%), Aeromexico (83%) or Korean Air (79%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Atlanta to St. Charles?

    The cheapest flight price from Atlanta to St. Charles is $103. On average you can expect to pay $404. The most popular route, (Atlanta Hartsfield-Jackson - Lambert-St Louis), can usually be booked for $131.

  • Can I find deals for flights from Atlanta to St. Charles that include hotel bookings?

    Yes. In addition to deals on Atlanta to St. Charles flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Atlanta to St. Charles?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to St. Charles.

  • Can I find deals for business class flights from Atlanta to St. Charles?

    Yes. Cheapflights offers flight deals from Atlanta to St. Charles by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Atlanta to St. Charles?

    Currently, August is the cheapest month in which you can book a flight from Atlanta to St. Charles (average of $311). Flying from Atlanta to St. Charles in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Atlanta to St. Charles

See prices for flight routes from nearby airports that may be better suited for you.
Atlanta to St. Louis flights
Atlanta to Kansas City flights
Jacksonville to St. Louis flights
Atlanta to Springfield flights
Savannah to St. Louis flights
Jacksonville to Kansas City flights
Savannah to Kansas City flights
Tallahassee to St. Louis flights
Asheville to Kansas City flights
Asheville to St. Louis flights
Tallahassee to Kansas City flights
Savannah to Springfield flights
Chattanooga to St. Louis flights
Chattanooga to Kansas City flights
Jacksonville to Springfield flights
Augusta to Kansas City flights
Atlanta to Joplin flights
Jacksonville to Joplin flights
Chattanooga to Springfield flights
Tallahassee to Springfield flights
Atlanta to Columbia flights
Asheville to Springfield flights
Valdosta to Kansas City flights
Jacksonville to Cape Girardeau flights
Augusta to Columbia flights
Atlanta to Fort Leonard Wood flights
Tallahassee to Columbia flights
Augusta to St. Louis flights

Top 6 airlines flying from Atlanta to St. Charles

Discover the top 6 airlines that operate flights from Atlanta to St. Charles. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$51Average$153FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$157FlexibilityNo cancel feeOn-time62%
Southern / MokuleleCheapest$189Average$234FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$430FlexibilityNo cancel feeOn-time71%
DeltaCheapest$229Average$331FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$256Average$332FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.