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

$186+ Cheap flights from Chattanooga to St. Louis (CHA - STL)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
CHA — STL
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chattanooga to St. Louis 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.

Cheap flight deals from Chattanooga to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Chattanooga (CHA) to St. Louis (STL). 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 September 11, 2025.

Round-trip from

$214
(American Airlines)

One-way from

$186
(American Airlines)

Popular in

April

Cheapest in

January

Average price

$308
From Chattanooga Lovell Field to Lambert-St Louis
Search Deals
One-way flight from Chattanooga Lovell Field to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Chattanooga to St. Louis

Cheapest flights from Chattanooga to St. Louis
Explore the most affordable flight options available from Chattanooga to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/311:12 pmCHA - STL
1 stop6h 10mAmerican Airlines
Mon 11/34:42 pmSTL - CHA
1 stop5h 38mAmerican Airlines
Deal found 9/8$214
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/112:12 pmCHA - STL
1 stop4h 32mUnited Airlines
Sat 10/46:30 amSTL - CHA
1 stop4h 06mUnited Airlines
Deal found 9/10$229
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/16:00 amCHA - STL
2 stops7h 51mAmerican Airlines
Sat 10/45:18 amSTL - CHA
1 stop5h 26mAmerican Airlines
Deal found 9/10$234
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Wed 9/242:01 pmCHA - STL
1 stop5h 22mUnited Airlines
Sun 9/285:00 amSTL - CHA
1 stop5h 36mUnited Airlines
Deal found 9/9$239
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/2612:14 pmCHA - STL
1 stop7h 08mAmerican Airlines
Fri 10/3110:13 amSTL - CHA
1 stop5h 16mAmerican Airlines
Deal found 9/10$254
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/267:18 pmCHA - STL
1 stop4h 49mAmerican Airlines
Tue 9/301:21 pmSTL - CHA
2 stops6h 56mAmerican Airlines
Deal found 9/11$259
This Delta deal was found by Cheapflights users on 9/9. 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 9/128:13 pmCHA - STL
1 stop4h 11mDelta
Sun 9/146:01 amSTL - CHA
1 stop3h 08mDelta
Deal found 9/9$289
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/122:18 pmCHA - STL
2 stops7h 14mAmerican Airlines
Sun 9/145:18 amSTL - CHA
1 stop5h 29mAmerican Airlines
Deal found 9/10$294
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/35:15 pmCHA - STL
1 stop6h 35mAmerican Airlines
Thu 10/95:30 amSTL - CHA
1 stop4h 22mAmerican Airlines
Deal found 9/9$324
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/41:04 pmCHA - STL
2 stops8h 28mAmerican Airlines
Sat 10/114:25 pmSTL - CHA
1 stop5h 19mAmerican Airlines
Deal found 9/9$329
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/41:04 pmCHA - STL
2 stops8h 28mAmerican Airlines
Thu 10/95:30 amSTL - CHA
1 stop6h 06mAmerican Airlines
Deal found 9/9$424

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chattanooga to St. Louis 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 September 11, 2025.
Use the filters below to find and compare flights from Chattanooga to St. Louis that are best for you.

Fly from

Chattanooga

Fly to

St. Louis

Route

Depart

Return

Price

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 10/31

1:12 pm-6:22 pm

1 stop6h 10m

Lambert-St Louis

Mon 11/3

4:42 pm-11:20 pm

1 stop5h 38m

$214

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 10/1

12:12 pm-3:44 pm

1 stop4h 32m

Lambert-St Louis

Sat 10/4

6:30 am-11:36 am

1 stop4h 06m

$229

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 2/21

3:15 pm-8:39 pm

1 stop6h 24m

Lambert-St Louis

Wed 2/25

10:00 am-2:33 pm

1 stop3h 33m

$229

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 10/1

6:00 am-12:51 pm

2 stops7h 51m

Lambert-St Louis

Sat 10/4

5:18 am-11:44 am

1 stop5h 26m

$234

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 9/24

2:01 pm-6:23 pm

1 stop5h 22m

Lambert-St Louis

Sun 9/28

5:00 am-11:36 am

1 stop5h 36m

$239

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/26

2:01 pm-6:17 pm

1 stop5h 16m

Lambert-St Louis

Tue 9/30

5:28 pm-11:11 pm

1 stop4h 43m

$239

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/26

7:18 pm-11:07 pm

1 stop4h 49m

Lambert-St Louis

Tue 9/30

1:21 pm-9:17 pm

2 stops6h 56m

$259

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 11/6

6:00 am-1:13 pm

1 stop8h 13m

Lambert-St Louis

Sun 11/9

5:17 am-11:34 am

1 stop5h 17m

$259

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 2/21

5:12 am-8:06 am

1 stop3h 54m

Lambert-St Louis

Wed 2/25

12:59 pm-11:50 pm

2 stops9h 51m

$279

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Mon 10/6

4:24 pm-8:51 pm

1 stop5h 27m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

Best time to book a flight from Chattanooga to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Chattanooga 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.

Cheapflights Insights

Everything you need to know about your flight from Chattanooga to St. Louis

What is the cheapest month to book a flight from Chattanooga to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Chattanooga to St. Louis (average of $311). Flying from Chattanooga to St. Louis 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 CHA to STL?

Find hourly flight availability from Chattanooga to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Chattanooga to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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. Louis. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Chattanooga to St. Louis. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • How long is the flight from Chattanooga to St. Louis?

    Departing from Chattanooga to St. Louis will take you 4h 32m. Chattanooga and St. Louis are separated by a distance of 384 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chattanooga to St. Louis round-trip?

    According to our current data, American Airlines ($228), Delta ($228), and United Airlines ($248) offers the cheapest pricing from Chattanooga to St. Louis. American Airlines is 25% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Chattanooga to St. Louis?

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

  • Can I find deals for business class flights from Chattanooga to St. Louis?

    Yes. Cheapflights offers flight deals from Chattanooga to St. Louis 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 Chattanooga to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Chattanooga to St. Louis (average of $311). Flying from Chattanooga to St. Louis 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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.

Top 3 airlines flying from Chattanooga to St. Louis

Discover the top 3 airlines that operate flights from Chattanooga to St. Louis. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$295FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$288FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$248Average$479FlexibilityNo cancel feeOn-time69%

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.