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Cheap flights from Chattanooga to St. Louis from $115

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 1/1. 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.
Multiple Airlines Logo
1:34 pm - 8:50 pm
CHA
-
STL
32h 16m1 stop
Multiple Airlines Logo
8:17 pm - 8:33 pm
STL
-
CHA
23h 16m2 stops
$239Multiple Airlines
Sun, Jan 25 - Sat, Feb 28
American Airlines Logo
2:12 pm - 6:34 pm
CHA
-
STL
5h 22m1 stop
American Airlines Logo
3:56 pm - 10:46 pm
STL
-
CHA
5h 50m1 stop
$249American Airlines
Tue, Jan 27 - Fri, Feb 27
American Airlines Logo
2:12 pm - 9:51 pm
CHA
-
STL
8h 39m2 stops
American Airlines Logo
3:56 pm - 10:46 pm
STL
-
CHA
5h 50m1 stop
$254American Airlines
Tue, Jan 27 - Fri, Feb 27
Multiple Airlines Logo
1:34 pm - 8:50 pm
CHA
-
STL
32h 16m1 stop
Multiple Airlines Logo
4:51 pm - 9:12 pm
STL
-
CHA
27h 21m2 stops
$257Multiple Airlines
Sun, Jan 25 - Wed, Feb 25
Delta Logo
3:02 pm - 8:37 pm
CHA
-
STL
6h 35m1 stop
Delta Logo
7:10 am - 2:04 pm
STL
-
CHA
5h 54m1 stop
$269Delta
Tue, Jan 27 - Mon, Mar 2
American Airlines Logo
2:12 pm - 9:51 pm
CHA
-
STL
8h 39m2 stops
American Airlines Logo
3:56 pm - 10:46 pm
STL
-
CHA
5h 50m1 stop
$274American Airlines
Tue, Jan 27 - Fri, Feb 27
Delta Logo
4:30 pm - 7:27 pm
CHA
-
STL
3h 57m1 stop
Delta Logo
11:55 am - 5:14 pm
STL
-
CHA
4h 19m1 stop
$294Delta
Sat, Jan 24 - Sat, Feb 28
Multiple Airlines Logo
1:34 pm - 8:48 pm
CHA
-
STL
32h 14m1 stop
Multiple Airlines Logo
8:17 pm - 8:33 pm
STL
-
CHA
23h 16m2 stops
$306Multiple Airlines
Thu, Jan 29 - Sat, Feb 28
United Airlines Logo
8:43 am - 12:29 pm
CHA
-
STL
4h 46m1 stop
United Airlines Logo
11:20 am - 4:54 pm
STL
-
CHA
4h 34m1 stop
$309United Airlines
Sat, Jan 31 - Wed, Feb 4
Delta Logo
7:59 pm - 11:42 pm
CHA
-
STL
4h 43m1 stop
Delta Logo
7:00 am - 12:41 pm
STL
-
CHA
4h 41m1 stop
$321Delta
Sun, Dec 28 - Thu, Jan 1

American Airlines flights from Chattanooga to St. Louis

Our best American Airlines deals on Chattanooga to St. Louis flight tickets
American Airlines
Jan 27
CHA2:12 pmChattanooga Lovell Field
5h 22m
1 stop
STL6:34 pmLambert-St Louis
Feb 27
STL3:56 pmLambert-St Louis
5h 50m
1 stop
CHA10:46 pmChattanooga Lovell Field
$249
Find similar
American Airlines
Jan 27
CHA2:12 pmChattanooga Lovell Field
8h 39m
2 stops
STL9:51 pmLambert-St Louis
Feb 27
STL3:56 pmLambert-St Louis
5h 50m
1 stop
CHA10:46 pmChattanooga Lovell Field
$254
Find similar
American Airlines
Jan 27
CHA2:12 pmChattanooga Lovell Field
8h 39m
2 stops
STL9:51 pmLambert-St Louis
Feb 27
STL3:56 pmLambert-St Louis
5h 50m
1 stop
CHA10:46 pmChattanooga Lovell Field
$274
Find similar

Delta flights from Chattanooga to St. Louis

Our best Delta deals on Chattanooga to St. Louis flight tickets
Delta
Jan 27
CHA3:02 pmChattanooga Lovell Field
6h 35m
1 stop
STL8:37 pmLambert-St Louis
Mar 2
STL7:10 amLambert-St Louis
5h 54m
1 stop
CHA2:04 pmChattanooga Lovell Field
$269
Find similar
Delta
Jan 24
CHA4:30 pmChattanooga Lovell Field
3h 57m
1 stop
STL7:27 pmLambert-St Louis
Feb 28
STL11:55 amLambert-St Louis
4h 19m
1 stop
CHA5:14 pmChattanooga Lovell Field
$294
Find similar
Delta
Dec 28
CHA7:59 pmChattanooga Lovell Field
4h 43m
1 stop
STL11:42 pmLambert-St Louis
Jan 1
STL7:00 amLambert-St Louis
4h 41m
1 stop
CHA12:41 pmChattanooga Lovell Field
$321
Find similar

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 December 13, 2025.
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

Sun 1/25

1:34 pm-8:50 pm

1 stop32h 16m

Lambert-St Louis

Sat 2/28

8:17 pm-8:33 pm

2 stops23h 16m

$239

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 1/27

2:12 pm-6:34 pm

1 stop5h 22m

Lambert-St Louis

Fri 2/27

3:56 pm-10:46 pm

1 stop5h 50m

$249

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 1/27

2:12 pm-9:51 pm

2 stops8h 39m

Lambert-St Louis

Fri 2/27

3:56 pm-10:46 pm

1 stop5h 50m

$254

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sun 1/25

1:34 pm-8:50 pm

1 stop32h 16m

Lambert-St Louis

Wed 2/25

4:51 pm-9:12 pm

2 stops27h 21m

$257

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 1/27

3:02 pm-8:37 pm

1 stop6h 35m

Lambert-St Louis

Mon 3/2

7:10 am-2:04 pm

1 stop5h 54m

$269

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 1/27

2:12 pm-9:51 pm

2 stops8h 39m

Lambert-St Louis

Fri 2/27

3:56 pm-10:46 pm

1 stop5h 50m

$274

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 1/24

4:30 pm-7:27 pm

1 stop3h 57m

Lambert-St Louis

Sat 2/28

11:55 am-5:14 pm

1 stop4h 19m

$294

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 1/29

1:34 pm-8:48 pm

1 stop32h 14m

Lambert-St Louis

Sat 2/28

8:17 pm-8:33 pm

2 stops23h 16m

$306

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 1/31

8:43 am-12:29 pm

1 stop4h 46m

Lambert-St Louis

Wed 2/4

11:20 am-4:54 pm

1 stop4h 34m

$309

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sun 12/28

7:59 pm-11:42 pm

1 stop4h 43m

Lambert-St Louis

Thu 1/1

7:00 am-12:41 pm

1 stop4h 41m

$321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 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 $228. The month of August is another great option to travel to St. Louis, with average flight prices from Chattanooga averaging around $253.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Friday when prices can be found for as low as $258. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $423. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Chattanooga in the evening is the least expensive time of day to depart. momondo users have found prices as low as $235 when looking at flights departing in the evening. In the morning is when there is more demand to fly to St. Louis, so prices are often more expensive at around $309 per ticket.

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

As of December 2025, prices for Chattanooga to St. Louis flights are approximately 53% 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 29m

Direct flights

None
The fastest flight from Chattanooga to St. Louis takes 4h 29m
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. 4h 29m 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
11,052 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
8,009 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,094 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
O'Fallon
Florissant
Fenton
Wentzville
St. Peters
Collinsville
Alton
Farmington
Festus
Clayton
Glencoe
Edwardsville
Eureka
Litchfield
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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