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Cheap flights from Chattanooga to St. Louis from $100

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 11/24. 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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Find the cheapest flights from Chattanooga to St. Louis

Cheap round-trip flights

American Airlines Logo
1:12 pm - 6:22 pmCHA-STL
6h 10m1 stop
American Airlines Logo
1:50 pm - 10:30 pmSTL-CHA
7h 40m1 stop
$213American Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
American Airlines Logo
1:12 pm - 6:22 pmCHA-STL
6h 10m1 stop
American Airlines Logo
1:50 pm - 10:30 pmSTL-CHA
7h 40m1 stop
$215American Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
American Airlines Logo
8:01 am - 4:03 pmCHA-STL
9h 02m2 stops
American Airlines Logo
1:50 pm - 10:30 pmSTL-CHA
7h 40m1 stop
$220American Airlines
Find Deal
Fri, Oct 31 - Fri, Nov 7
Delta Logo
1:30 pm - 7:14 pmCHA-STL
6h 44m1 stop
Delta Logo
7:30 am - 1:06 pmSTL-CHA
4h 36m1 stop
$229Delta
Find Deal
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
4:24 pm - 8:51 pmCHA-STL
5h 27m1 stop
American Airlines Logo
5:17 am - 11:34 amSTL-CHA
5h 17m1 stop
$244American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
American Airlines Logo
8:01 am - 4:03 pmCHA-STL
9h 02m2 stops
American Airlines Logo
5:17 am - 11:34 amSTL-CHA
5h 17m1 stop
$249American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Delta Logo
6:21 pm - 11:44 pmCHA-STL
6h 23m1 stop
Delta Logo
7:02 pm - 11:27 pmSTL-CHA
3h 25m1 stop
$351Delta
Find Deal
Mon, Nov 10 - Fri, Nov 14
United Airlines Logo
12:12 pm - 3:44 pmCHA-STL
4h 32m1 stop
United Airlines Logo
3:23 pm - 8:44 pmSTL-CHA
4h 21m1 stop
$373United Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
United Airlines Logo
12:12 pm - 3:44 pmCHA-STL
4h 32m1 stop
United Airlines Logo
5:28 pm - 11:11 pmSTL-CHA
4h 43m1 stop
$404United Airlines
Find Deal
Tue, Oct 14 - Sun, Oct 19
Multiple Airlines Logo
4:02 pm - 10:37 amCHA-STL
19h 35m2 stops
Multiple Airlines Logo
1:41 pm - 3:25 pmSTL-CHA
24h 44m1 stop
$502Multiple Airlines
Find Deal
Thu, Oct 9 - Sun, Oct 12

United Airlines flights from Chattanooga to St. Louis

Our best United Airlines deals on Chattanooga to St. Louis flight tickets
United Airlines
Oct 7
CHA12:12 pmChattanooga Lovell Field
4h 32m
1 stop
STL3:44 pmLambert-St Louis
Oct 11
STL3:23 pmLambert-St Louis
4h 21m
1 stop
CHA8:44 pmChattanooga Lovell Field
$373
Find similar
United Airlines
Oct 14
CHA12:12 pmChattanooga Lovell Field
4h 32m
1 stop
STL3:44 pmLambert-St Louis
Oct 19
STL5:28 pmLambert-St Louis
4h 43m
1 stop
CHA11:11 pmChattanooga Lovell Field
$404
Find similar
United Airlines
Nov 19
CHA8:45 amChattanooga Lovell Field
14h 09m
2 stops
STL9:54 pmLambert-St Louis
Nov 22
STL5:24 pmLambert-St Louis
4h 35m
1 stop
CHA10:59 pmChattanooga Lovell Field
$446
Find similar

American Airlines flights from Chattanooga to St. Louis

Our best American Airlines deals on Chattanooga to St. Louis flight tickets
American Airlines
Oct 31
CHA1:12 pmChattanooga Lovell Field
6h 10m
1 stop
STL6:22 pmLambert-St Louis
Nov 7
STL1:50 pmLambert-St Louis
7h 40m
1 stop
CHA10:30 pmChattanooga Lovell Field
$213
Find similar
American Airlines
Oct 31
CHA1:12 pmChattanooga Lovell Field
6h 10m
1 stop
STL6:22 pmLambert-St Louis
Nov 7
STL1:50 pmLambert-St Louis
7h 40m
1 stop
CHA10:30 pmChattanooga Lovell Field
$215
Find similar
American Airlines
Oct 31
CHA8:01 amChattanooga Lovell Field
9h 02m
2 stops
STL4:03 pmLambert-St Louis
Nov 7
STL1:50 pmLambert-St Louis
7h 40m
1 stop
CHA10:30 pmChattanooga Lovell Field
$220
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 September 23, 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

Fri 10/31

1:12 pm-6:22 pm

1 stop6h 10m

Lambert-St Louis

Fri 11/7

1:50 pm-10:30 pm

1 stop7h 40m

$213

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 10/31

1:12 pm-6:22 pm

1 stop6h 10m

Lambert-St Louis

Fri 11/7

1:50 pm-10:30 pm

1 stop7h 40m

$215

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 10/31

8:01 am-4:03 pm

2 stops9h 02m

Lambert-St Louis

Fri 11/7

1:50 pm-10:30 pm

1 stop7h 40m

$220

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Sat 2/21

1:30 pm-7:14 pm

1 stop6h 44m

Lambert-St Louis

Wed 2/25

7:30 am-1:06 pm

1 stop4h 36m

$229

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 10/31

4:24 pm-8:51 pm

1 stop5h 27m

Lambert-St Louis

Sun 11/2

5:17 am-11:34 am

1 stop5h 17m

$244

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Fri 10/31

8:01 am-4:03 pm

2 stops9h 02m

Lambert-St Louis

Sun 11/2

5:17 am-11:34 am

1 stop5h 17m

$249

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Mon 11/10

6:21 pm-11:44 pm

1 stop6h 23m

Lambert-St Louis

Fri 11/14

7:02 pm-11:27 pm

1 stop3h 25m

$351

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 10/7

12:12 pm-3:44 pm

1 stop4h 32m

Lambert-St Louis

Sat 10/11

3:23 pm-8:44 pm

1 stop4h 21m

$373

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Tue 10/14

12:12 pm-3:44 pm

1 stop4h 32m

Lambert-St Louis

Sun 10/19

5:28 pm-11:11 pm

1 stop4h 43m

$404

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 10/9

4:02 pm-10:37 am

2 stops19h 35m

Lambert-St Louis

Sun 10/12

1:41 pm-3:25 pm

1 stop24h 44m

$502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 November is another great option to travel to St. Louis, with average flight prices from Chattanooga averaging around $250.

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 September 2025, prices for Chattanooga to St. Louis flights are approximately 42% 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

Direct flights

None
There are no direct flights from Chattanooga to St. Louis. There are no popular flight routes from Chattanooga to St. Louis.
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  • 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 32m 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
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $228Free CancellationRating
7.9
7,974 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
8,926 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
Florissant
Maryland Heights
O'Fallon
Fenton
Collinsville
Wentzville
Alton
St. Peters
Farmington
Festus
Glencoe
Clayton
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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