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

According to our current data, Delta ($229), American Airlines ($274), and Spirit Airlines ($292) offers the cheapest pricing from Chattanooga to St. Louis. Delta is 24% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from Chattanooga to St. Louis?

Travelers seeking maximum savings on their Chattanooga to St. Louis flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What are the most popular airlines that fly from Chattanooga to St. Louis?

Consider American Airlines, Delta or United Airlines when booking your flight. These represent the most popular airlines when flying from Chattanooga to St. Louis.

What is the cheapest day to fly round-trip from Chattanooga to St. Louis?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 63% when planning your travel around this day of the week.

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

August can be a great time to fly to St. Louis from Chattanooga with a flight ticket averaging about $302. Cheapflights users have found deals in the month of August for as cheap as $228. The most expensive prices can be found in the month of April.

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.

$152+ Flights from Chattanooga to St. Louis

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Cheap flight deals from Chattanooga to St. Louis

Round-trip from	$229 (Delta)
One-way from	$152 (Mytrip)
Popular in	April
Cheapest in	August
Average price	$323

From Chattanooga Lovell Field to Lambert-St Louis

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One-way flight from Chattanooga Lovell Field to Lambert-St Louis

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Highest demand for flights based on searches. 15% potential increase in price ($54 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 July 3, 2025.

Wed 7/237:35 amCHA - STL

1 stop6h 46mDelta

Mon 7/287:00 amSTL - CHA

1 stop5h 12mDelta

Deal found 7/2

$229

Thu 7/102:00 pmCHA - STL

1 stop5h 33mAmerican Airlines

Sat 7/124:07 pmSTL - CHA

1 stop4h 15mAmerican Airlines

Deal found 7/1

$269

Wed 7/2311:41 amCHA - STL

3 stops23h 11mSpirit Airlines

Mon 7/2810:47 amSTL - CHA

3 stops28h 16mSpirit Airlines

Deal found 7/2

$292

Thu 7/35:30 pmCHA - STL

1 stop6h 15mUnited Airlines

Wed 7/95:00 amSTL - CHA

1 stop5h 35mUnited Airlines

Deal found 7/1

$339

Thu 7/174:58 pmCHA - STL

3 stops17h 54mMultiple Airlines

Sat 7/2610:45 amSTL - CHA

2 stops25h 56mMultiple Airlines

Deal found 7/1

$397

Best flights from Chattanooga to St. Louis
Discover carefully curated flight deals from Chattanooga to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Wed 7/237:35 amCHA - STL

1 stop6h 46mDelta

Mon 7/287:00 amSTL - CHA

1 stop5h 12mDelta

Deal found 7/2

$229

Thu 7/245:02 amCHA - STL

1 stop4h 13mAmerican Airlines

Sun 7/275:20 amSTL - CHA

1 stop4h 15mAmerican Airlines

Deal found 7/3

$274

Wed 7/2311:41 amCHA - STL

3 stops23h 11mSpirit Airlines

Mon 7/2810:47 amSTL - CHA

3 stops28h 16mSpirit Airlines

Deal found 7/2

$292

Thu 7/174:58 pmCHA - STL

3 stops17h 54mMultiple Airlines

Sat 7/2610:45 amSTL - CHA

2 stops25h 56mMultiple Airlines

Deal found 7/1

$397

Wed 10/1510:30 amCHA - STL

2 stops14h 28mUnited Airlines

Sat 10/183:23 pmSTL - CHA

1 stop4h 21mUnited Airlines

Deal found 7/2

$465

Last-minute flights from Chattanooga to St. Louis
Discover last-minute flight deals from Chattanooga to St. Louis. Data last updated July 3, 2025 and is based on user searches.

Thu 7/35:30 pmCHA - STL

1 stop6h 15mUnited Airlines

Wed 7/95:00 amSTL - CHA

1 stop5h 35mUnited Airlines

Deal found 7/1

$339

Thu 7/102:00 pmCHA - STL

1 stop5h 33mAmerican Airlines

Sat 7/124:07 pmSTL - CHA

1 stop4h 15mAmerican Airlines

Deal found 7/1

$269

Thu 7/103:01 pmCHA - STL

2 stops19h 51mMultiple Airlines

Sat 7/123:34 pmSTL - CHA

2 stops21h 07mMultiple Airlines

Deal found 7/1

$504

Fri 7/118:35 pmCHA - STL

1 stop4h 18mDelta

Mon 7/147:11 pmSTL - CHA

1 stop3h 43mDelta

Deal found 6/30

$294

Fri 7/113:27 pmCHA - STL

3 stops24h 12mSpirit Airlines

Mon 7/1410:47 amSTL - CHA

3 stops28h 16mSpirit Airlines

Deal found 6/30

$482

Sun 7/135:30 pmCHA - STL

1 stop6h 15mUnited Airlines

Fri 7/185:00 amSTL - CHA

1 stop5h 35mUnited Airlines

Deal found 7/2

$801

Thu 7/174:58 pmCHA - STL

3 stops17h 54mMultiple Airlines

Sat 7/2610:45 amSTL - CHA

2 stops25h 56mMultiple Airlines

Deal found 7/1

$397

Wed 7/237:35 amCHA - STL

1 stop6h 46mDelta

Mon 7/287:00 amSTL - CHA

1 stop5h 12mDelta

Deal found 7/2

$229

Wed 7/2311:41 amCHA - STL

3 stops23h 11mSpirit Airlines

Mon 7/2810:47 amSTL - CHA

3 stops28h 16mSpirit Airlines

Deal found 7/2

$292

One-way flights from Chattanooga to St. Louis
Search for one-way flight options from Chattanooga to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Thu 8/1412:01 pmCHA - STL

3 stops26h 31mSpirit Airlines

Deal found 7/1

$152

Thu 8/146:17 pmCHA - STL

1 stop6h 38mAmerican Airlines

Deal found 7/1

$166

Cheapflights Fare Finder

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

Wed 7/23

7:35 am-1:21 pm

1 stop6h 46m

Lambert-St Louis

Mon 7/28

7:00 am-1:12 pm

1 stop5h 12m

$229

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 7/24

5:02 am-8:15 am

1 stop4h 13m

Lambert-St Louis

Sun 7/27

5:20 am-10:35 am

1 stop4h 15m

$274

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 7/23

11:41 am-9:52 am

3 stops23h 11m

Lambert-St Louis

Mon 7/28

10:47 am-4:03 pm

3 stops28h 16m

$292

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 7/17

4:58 pm-9:52 am

3 stops17h 54m

Lambert-St Louis

Sat 7/26

10:45 am-1:41 pm

2 stops25h 56m

$397

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Wed 10/15

10:30 am-11:58 pm

2 stops14h 28m

Lambert-St Louis

Sat 10/18

3:23 pm-8:44 pm

1 stop4h 21m

$465

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 8/14

12:01 pm-1:32 pm

3 stops26h 31m

$152

ChattanoogaSt. Louis

CHA - STL

CHASTL

Chattanooga Lovell Field

Thu 8/14

6:17 pm-11:55 pm

1 stop6h 38m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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?

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.

How much does it cost to fly round-trip from Chattanooga to St. Louis?

Reviews of airlines servicing St. Louis

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

7,982 reviews

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

7,982 reviews

Delta

8.0

Very good

7,982 reviews

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

8,861 reviews

Delta

8.0

Very good

7,982 reviews

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

7,982 reviews

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!

Spirit Airlines

6.3

Okay

8,086 reviews

Delta

8.0

Very good

7,982 reviews

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

What are the cheapest airlines flying from Chattanooga to St. Louis round-trip?
According to our current data, Delta ($229), American Airlines ($274), and Spirit Airlines ($292) offers the cheapest pricing from Chattanooga to St. Louis. Delta is 24% 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

O'Fallon

Maryland Heights

Fairview Heights

Collinsville

Eureka

St. Peters

Glencoe

Alton

Festus

Chesterfield

Farmington

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Chattanooga to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$222	Average$403	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$228	Average$288	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$228	Average$305	FlexibilityNo cancel fee	On-timeN/A

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$152+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Chattanooga to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Chattanooga to St. Louis

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Chattanooga to St. Louis

Cheapest flights from Chattanooga to St. LouisExplore 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 July 3, 2025.

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 July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Chattanooga to St. Louis that are best for you.

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.

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?

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 July 3, 2025.

How much does it cost to fly round-trip from Chattanooga to St. Louis?

Reviews of airlines servicing St. Louis

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.

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.

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

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

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

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

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

Traveling to a place near Chattanooga?

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Alternative routes for Chattanooga to St. Louis

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Top 3 airlines flying from Chattanooga to St. Louis

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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 July 3, 2025.