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Cheap flights from Chattanooga to St. Louis from $176

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chattanooga to St. Louis departing on 6/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Chattanooga to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:25 pm - 9:19 pm
CHA
-
STL
3h 54m
1 stop
Delta Logo
1:03 pm - 8:04 pm
STL
-
CHA
6h 01m
1 stop
$249Delta
Fri, Apr 17 - Sat, Apr 18
Delta Logo
6:19 pm - 11:36 pm
CHA
-
STL
6h 17m
1 stop
Delta Logo
6:00 am - 10:55 am
STL
-
CHA
3h 55m
1 stop
$259Delta
Wed, Feb 18 - Sun, Feb 22
American Airlines Logo
3:35 pm - 10:52 pm
CHA
-
STL
8h 17m
2 stops
American Airlines Logo
7:00 am - 1:41 pm
STL
-
CHA
5h 41m
1 stop
$264American Airlines
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
1:55 pm - 9:12 pm
CHA
-
STL
8h 17m
2 stops
American Airlines Logo
9:37 am - 5:03 pm
STL
-
CHA
6h 26m
2 stops
$269American Airlines
Sat, Feb 21 - Wed, Feb 25
Delta Logo
1:30 pm - 3:58 pm
CHA
-
STL
3h 28m
1 stop
Delta Logo
6:00 am - 1:05 pm
STL
-
CHA
6h 05m
1 stop
$274Delta
Thu, Jun 25 - Sun, Jun 28
Delta Logo
1:30 pm - 3:58 pm
CHA
-
STL
3h 28m
1 stop
Delta Logo
6:00 am - 1:05 pm
STL
-
CHA
6h 05m
1 stop
$284Delta
Thu, Jun 25 - Sun, Jun 28
Delta Logo
7:35 pm - 11:38 pm
CHA
-
STL
5h 03m
1 stop
Delta Logo
6:00 am - 1:05 pm
STL
-
CHA
6h 05m
1 stop
$299Delta
Fri, Jun 26 - Sun, Jun 28
United Airlines Logo
5:41 pm - 9:47 pm
CHA
-
STL
5h 06m
1 stop
United Airlines Logo
7:45 am - 1:22 pm
STL
-
CHA
4h 37m
1 stop
$309United Airlines
Tue, Apr 14 - Thu, Apr 23
American Airlines Logo
5:15 am - 12:44 pm
CHA
-
STL
8h 29m
2 stops
American Airlines Logo
5:20 am - 11:40 am
STL
-
CHA
5h 20m
1 stop
$314American Airlines
Tue, Mar 31 - Tue, Apr 7
Delta Logo
7:59 pm - 11:58 pm
CHA
-
STL
4h 59m
1 stop
Delta Logo
7:03 am - 2:25 pm
STL
-
CHA
6h 22m
1 stop
$324Delta
Mon, Mar 30 - Mon, Apr 6

American Airlines flights from Chattanooga to St. Louis

Our best American Airlines deals on Chattanooga to St. Louis flight tickets
American Airlines
Feb 21
CHA3:35 pmChattanooga Lovell Field
8h 17m
2 stops
STL10:52 pmLambert-St Louis
Feb 25
STL7:00 amLambert-St Louis
5h 41m
1 stop
CHA1:41 pmChattanooga Lovell Field
$264
American Airlines
Feb 21
CHA1:55 pmChattanooga Lovell Field
8h 17m
2 stops
STL9:12 pmLambert-St Louis
Feb 25
STL9:37 amLambert-St Louis
6h 26m
2 stops
CHA5:03 pmChattanooga Lovell Field
$269
American Airlines
Feb 13
CHA6:49 pmChattanooga Lovell Field
5h 46m
1 stop
STL11:35 pmLambert-St Louis
Feb 24
STL9:23 amLambert-St Louis
8h 29m
2 stops
CHA6:52 pmChattanooga Lovell Field
$284

United Airlines flights from Chattanooga to St. Louis

Our best United Airlines deals on Chattanooga to St. Louis flight tickets
United Airlines
Apr 14
CHA5:41 pmChattanooga Lovell Field
5h 06m
1 stop
STL9:47 pmLambert-St Louis
Apr 23
STL7:45 amLambert-St Louis
4h 37m
1 stop
CHA1:22 pmChattanooga Lovell Field
$309
United Airlines
Feb 12
CHA6:30 amChattanooga Lovell Field
6h 51m
1 stop
STL12:21 pmLambert-St Louis
Feb 26
STL6:25 amLambert-St Louis
4h 51m
1 stop
CHA12:16 pmChattanooga Lovell Field
$334
United Airlines
Feb 12
CHA6:30 amChattanooga Lovell Field
6h 51m
1 stop
STL12:21 pmLambert-St Louis
Feb 23
STL6:25 amLambert-St Louis
4h 51m
1 stop
CHA12:16 pmChattanooga Lovell Field
$339

momondo 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, momondo users made 832,500 searches. Data last updated February 7, 2026.
Use the filters below to find and compare flights from Chattanooga to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 4/17

6:25 pm-9:19 pm

1 stop3h 54m

Lambert-St Louis

Sat 4/18

1:03 pm-8:04 pm

1 stop6h 01m

$249

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 2/18

6:19 pm-11:36 pm

1 stop6h 17m

Lambert-St Louis

Sun 2/22

6:00 am-10:55 am

1 stop3h 55m

$259

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 2/21

3:35 pm-10:52 pm

2 stops8h 17m

Lambert-St Louis

Wed 2/25

7:00 am-1:41 pm

1 stop5h 41m

$264

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 2/21

1:55 pm-9:12 pm

2 stops8h 17m

Lambert-St Louis

Wed 2/25

9:37 am-5:03 pm

2 stops6h 26m

$269

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 6/25

1:30 pm-3:58 pm

1 stop3h 28m

Lambert-St Louis

Sun 6/28

6:00 am-1:05 pm

1 stop6h 05m

$274

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 6/25

1:30 pm-3:58 pm

1 stop3h 28m

Lambert-St Louis

Sun 6/28

6:00 am-1:05 pm

1 stop6h 05m

$284

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 6/26

7:35 pm-11:38 pm

1 stop5h 03m

Lambert-St Louis

Sun 6/28

6:00 am-1:05 pm

1 stop6h 05m

$299

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 4/14

5:41 pm-9:47 pm

1 stop5h 06m

Lambert-St Louis

Thu 4/23

7:45 am-1:22 pm

1 stop4h 37m

$309

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 3/31

5:15 am-12:44 pm

2 stops8h 29m

Lambert-St Louis

Tue 4/7

5:20 am-11:40 am

1 stop5h 20m

$314

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Mon 3/30

7:59 pm-11:58 pm

1 stop4h 59m

Lambert-St Louis

Mon 4/6

7:03 am-2:25 pm

1 stop6h 22m

$324

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Chattanooga to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chattanooga and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, August is the cheapest month to fly from Chattanooga to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $253. The month of September is another great option to travel to St. Louis, with average flight prices from Chattanooga averaging around $253.

How have Chattanooga to St. Louis flight prices changed over time?

As of February 2026, prices for Chattanooga to St. Louis flights are approximately 47% cheaper when compared to flights at the same time last year.

When to book flights from Chattanooga to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Chattanooga to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chattanooga to St. Louis (CHA to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chattanooga to St. Louis

Fastest flight time

3h 28m

Direct flights

None
The fastest flight from Chattanooga to St. Louis takes 3h 28m
There are no direct flights from Chattanooga to St. Louis. There are no popular flight routes from Chattanooga to St. Louis.
Search flight deals

  • How far is Chattanooga Lovell Field to Lambert-St Louis by plane?

    Lambert-St Louis is 366.1 mi away from Chattanooga Lovell Field. 3h 28m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Chattanooga Lovell Field Airport to Lambert-St Louis Airport?

    Prices for flights from Chattanooga Lovell Field Airport to Lambert-St Louis Airport were last updated today.

  • How many operators does momondo search for flights from Chattanooga Lovell Field Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Chattanooga Lovell Field Airport to Lambert-St Louis Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chattanooga Lovell Field Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Chattanooga to St. Louis?

Best airlines flying from Chattanooga to St. Louis

Compare and see reviews for airlines that fly from Chattanooga to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,246 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,159 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,244 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Chattanooga to St. Louis?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to St. Louis from Chattanooga.

Can I find flights from Chattanooga to St. Louis with flexible booking policies on momondo?

All flight searches from Chattanooga to St. Louis on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Chattanooga to St. Louis?

Once all potential Chattanooga to St. Louis flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chattanooga to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Chattanooga. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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