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Cheap flights from Chattanooga to St. Louis from $264

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 9/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chattanooga to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 10:12 am
CHA
-
STL
4h 57m
1 stop
United Airlines Logo
5:30 pm - 12:10 am
STL
-
CHA
5h 40m
1 stop
$299United Airlines
Fri, Aug 14 - Sun, Aug 16
United Airlines Logo
6:15 am - 10:12 am
CHA
-
STL
4h 57m
1 stop
United Airlines Logo
5:30 pm - 12:10 am
STL
-
CHA
5h 40m
1 stop
$299United Airlines
Fri, Aug 14 - Sun, Aug 16
United Airlines Logo
7:00 pm - 10:59 pm
CHA
-
STL
4h 59m
1 stop
United Airlines Logo
7:25 am - 1:16 pm
STL
-
CHA
4h 51m
1 stop
$299United Airlines
Fri, Sep 4 - Mon, Sep 7
American Airlines Logo
6:00 am - 10:20 am
CHA
-
STL
5h 20m
1 stop
American Airlines Logo
11:01 am - 4:30 pm
STL
-
CHA
4h 29m
1 stop
$323American Airlines
Fri, Sep 25 - Sun, Sep 27
Delta Logo
6:45 am - 10:55 am
CHA
-
STL
5h 10m
1 stop
Delta Logo
7:00 am - 1:47 pm
STL
-
CHA
5h 47m
1 stop
$333Delta
Fri, Sep 25 - Sun, Sep 27
Delta Logo
6:45 am - 11:46 am
CHA
-
STL
6h 01m
1 stop
Delta Logo
12:52 pm - 6:00 pm
STL
-
CHA
4h 08m
1 stop
$333Delta
Thu, Aug 20 - Thu, Aug 27
American Airlines Logo
6:00 am - 10:20 am
CHA
-
STL
5h 20m
1 stop
American Airlines Logo
11:01 am - 4:30 pm
STL
-
CHA
4h 29m
1 stop
$333American Airlines
Fri, Sep 25 - Sun, Sep 27
American Airlines Logo
7:04 pm - 11:43 pm
CHA
-
STL
5h 39m
1 stop
American Airlines Logo
5:15 am - 10:24 am
STL
-
CHA
4h 09m
1 stop
$333American Airlines
Fri, Sep 25 - Sun, Sep 27
Multiple Airlines Logo
3:13 pm - 4:31 pm
CHA
-
STL
26h 18m
2 stops
Multiple Airlines Logo
5:02 pm - 1:53 pm
STL
-
CHA
19h 51m
1 stop
$337Multiple Airlines
Mon, Aug 24 - Thu, Aug 27
Delta Logo
5:35 am - 8:08 am
CHA
-
STL
3h 33m
1 stop
Delta Logo
7:00 am - 12:27 pm
STL
-
CHA
4h 27m
1 stop
$363Delta
Wed, Aug 12 - Thu, Aug 20

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United Airlines flights from Chattanooga to St. Louis

Our best United Airlines deals on Chattanooga to St. Louis flight tickets
United Airlines
Aug 14
CHA6:15 amChattanooga Lovell Field
4h 57m
1 stop
STL10:12 amLambert-St Louis
Aug 16
STL5:30 pmLambert-St Louis
5h 40m
1 stop
CHA12:10 amChattanooga Lovell Field
$299
United Airlines
Aug 14
CHA7:00 pmChattanooga Lovell Field
4h 59m
1 stop
STL10:59 pmLambert-St Louis
Aug 17
STL6:54 pmLambert-St Louis
4h 16m
1 stop
CHA12:10 amChattanooga Lovell Field
$314
United Airlines
Aug 2
CHA7:07 pmChattanooga Lovell Field
5h 22m
1 stop
STL11:29 pmLambert-St Louis
Aug 9
STL1:13 pmLambert-St Louis
6h 36m
1 stop
CHA8:49 pmChattanooga Lovell Field
$349

American Airlines flights from Chattanooga to St. Louis

Our best American Airlines deals on Chattanooga to St. Louis flight tickets
American Airlines
Sep 25
CHA6:00 amChattanooga Lovell Field
5h 20m
1 stop
STL10:20 amLambert-St Louis
Sep 27
STL11:01 amLambert-St Louis
4h 29m
1 stop
CHA4:30 pmChattanooga Lovell Field
$323
American Airlines
Aug 14
CHA6:00 amChattanooga Lovell Field
5h 14m
1 stop
STL10:14 amLambert-St Louis
Aug 24
STL3:25 pmLambert-St Louis
4h 27m
1 stop
CHA8:52 pmChattanooga Lovell Field
$350
American Airlines
Aug 7
CHA7:18 pmChattanooga Lovell Field
4h 22m
1 stop
STL10:40 pmLambert-St Louis
Aug 10
STL4:54 pmLambert-St Louis
5h 52m
1 stop
CHA11:46 pmChattanooga Lovell Field
$367

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 July 27, 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

Cheapest round-trip

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 8/14

6:15 am-10:12 am

1 stop4h 57m

Lambert-St Louis

Sun 8/16

5:30 pm-12:10 am

1 stop5h 40m

$299

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 8/14

6:15 am-10:12 am

1 stop4h 57m

Lambert-St Louis

Sun 8/16

5:30 pm-12:10 am

1 stop5h 40m

$299

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/4

7:00 pm-10:59 pm

1 stop4h 59m

Lambert-St Louis

Mon 9/7

7:25 am-1:16 pm

1 stop4h 51m

$299

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/25

6:00 am-10:20 am

1 stop5h 20m

Lambert-St Louis

Sun 9/27

11:01 am-4:30 pm

1 stop4h 29m

$323

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/25

6:45 am-10:55 am

1 stop5h 10m

Lambert-St Louis

Sun 9/27

7:00 am-1:47 pm

1 stop5h 47m

$333

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 8/20

6:45 am-11:46 am

1 stop6h 01m

Lambert-St Louis

Thu 8/27

12:52 pm-6:00 pm

1 stop4h 08m

$333

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/25

6:00 am-10:20 am

1 stop5h 20m

Lambert-St Louis

Sun 9/27

11:01 am-4:30 pm

1 stop4h 29m

$333

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 9/25

7:04 pm-11:43 pm

1 stop5h 39m

Lambert-St Louis

Sun 9/27

5:15 am-10:24 am

1 stop4h 09m

$333

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Mon 8/24

3:13 pm-4:31 pm

2 stops26h 18m

Lambert-St Louis

Thu 8/27

5:02 pm-1:53 pm

1 stop19h 51m

$337
Quickest round-trip

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 8/12

5:35 am-8:08 am

1 stop3h 33m

Lambert-St Louis

Thu 8/20

7:00 am-12:27 pm

1 stop4h 27m

$363

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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?

Prices are currently typical for flights on this route.

Typical prices usually range from $278 to $493.
The lowest price recently found on this route was $299.

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

In general, January 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 $249. The month of December is another great option to travel to St. Louis, with average flight prices from Chattanooga averaging around $258.

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

As of July 2026, prices for Chattanooga to St. Louis flights are approximately 58% more expensive 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

4h 02m

Direct flights

None
The fastest flight from Chattanooga to St. Louis takes 4h 02m
There are no direct flights from Chattanooga to St. Louis. There are no popular flight routes from Chattanooga to St. Louis.
Search flight deals

Frequently asked questions about flying from Chattanooga to St. Louis

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

    Lambert-St Louis is 366.1 mi away from Chattanooga Lovell Field. 4h 02m 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
DeltaPriceFrom $228Free CancellationRating
7.8
8,482 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.1
11,836 reviews
Search American Airlines flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
10,041 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
Fairview Heights
Hermann
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
Festus
Eureka
Litchfield
Edwardsville
Grafton
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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