St. Louis

$65+ Cheap flights from Columbus (CMH) to St. Louis (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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — STL
May 22 — May 291
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Columbus to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Columbus to St. Louis

Cheapest flights from Columbus to St. Louis
Explore the most affordable flight options available from Columbus to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2026.

This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:00 pm
CMH
-
STL
1 stop7h 15m
Southwest
Wed 6/35:35 am
STL
-
CMH
1 stop3h 40m
Southwest
Deal found 4/20$198
This Trip.com deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:53 am
CMH
-
STL
1 stop13h 26m
Frontier
Fri 5/84:19 pm
STL
-
CMH
1 stop17h 57m
Frontier
Deal found 4/17$202
This Kiwi.com deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:05 pm
CMH
-
STL
1 stop15h 50m
Frontier
Thu 5/148:08 pm
STL
-
CMH
1 stop20h 40m
Frontier
Deal found 4/20$210
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:30 pm
CMH
-
STL
1 stop4h 25m
Southwest
Wed 6/38:25 am
STL
-
CMH
1 stop7h 05m
Southwest
Deal found 4/20$217
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/76:05 pm
CMH
-
STL
1 stop15h 50m
Frontier
Sat 6/135:06 pm
STL
-
CMH
1 stop22h 59m
Frontier
Deal found 4/22$231
This Southwest deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:15 pm
CMH
-
STL
1 stop5h 40m
Southwest
Thu 6/45:40 am
STL
-
CMH
1 stop3h 25m
Southwest
Deal found 4/20$235
This Trip.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/308:08 pm
CMH
-
STL
1 stop24h 13m
Frontier
Sun 5/34:59 pm
STL
-
CMH
1 stop15h 49m
Frontier
Deal found 4/21$239
This Kiwi.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:05 pm
CMH
-
STL
1 stop15h 50m
Multiple Airlines
Thu 5/143:33 pm
STL
-
CMH
2 stops20h 09m
Multiple Airlines
Deal found 4/21$242
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/164:59 pm
CMH
-
STL
1 stop5h 39m
Delta
Sat 5/237:05 pm
STL
-
CMH
1 stop4h 10m
Delta
Deal found 4/22$245

Find flight deals from Columbus to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Columbus (CMH) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$198
(Southwest)

One-way from

$65
(Kiwi.com)

Popular in

July

Cheapest in

December

Average price

$354

Good round-trip deal

$385 or less

Good one-way deal

$179 or less
Provider with most accurate pricing for Columbus-Lambert-St Louis flight deals.
Provider most trusted by Cheapflights users for Columbus-Lambert-St Louis flights.
From Columbus to Lambert-St Louis
One-way flight from Columbus to Lambert-St Louis
Highest demand for flights based on searches. 14% potential increase in price ($59 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in April 2026
Price to beat on a round-trip flight from Columbus to Lambert-St Louis.
Price to beat on a one-way flight from Columbus to Lambert-St Louis.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbus 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, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2026.
Use the filters below to find and compare flights from Columbus Airport to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Mon 6/1

7:15 pm-11:55 pm

1 stop5h 40m

Lambert-St Louis

Thu 6/4

5:40 am-10:05 am

1 stop3h 25m

$235

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Thu 6/4

12:55 pm-4:15 pm

1 stop4h 20m

Lambert-St Louis

Sun 6/7

7:12 pm-12:54 am

1 stop4h 42m

$266
Quickest round-trip

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Tue 5/12

7:20 pm-7:50 pm

Nonstop1h 30m

Lambert-St Louis

Thu 5/14

8:25 pm-10:45 pm

Nonstop1h 20m

$267

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Mon 6/1

2:30 pm-8:10 pm

1 stop6h 40m

Lambert-St Louis

Wed 6/3

2:10 pm-10:00 pm

2 stops6h 50m

$271

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Fri 5/15

7:56 pm-10:50 pm

1 stop3h 54m

Lambert-St Louis

Sat 5/16

6:30 am-1:14 pm

1 stop5h 44m

$276

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Fri 5/15

8:10 am-1:10 pm

1 stop6h 00m

Lambert-St Louis

Mon 5/18

7:01 pm-12:30 am

1 stop4h 29m

$276

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Tue 5/19

5:36 am-8:39 am

1 stop4h 03m

Lambert-St Louis

Wed 5/20

7:45 am-1:14 pm

1 stop4h 29m

$276

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Thu 5/28

6:05 am-9:44 am

1 stop4h 39m

Lambert-St Louis

Fri 5/29

1:59 pm-8:59 pm

1 stop6h 00m

$293

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Fri 8/28

10:20 am-1:17 pm

1 stop3h 57m

Lambert-St Louis

Sun 8/30

5:45 pm-11:57 pm

1 stop5h 12m

$297

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Tue 5/19

12:55 pm-4:10 pm

1 stop4h 15m

Lambert-St Louis

Thu 5/21

6:45 am-1:25 pm

1 stop5h 40m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/20

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Columbus to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Columbus to St. Louis in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Columbus Airport-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Columbus Airport-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Columbus Airport-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Columbus Airport-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Columbus Airport-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Columbus to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Columbus 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 Columbus Airport to St. Louis

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

Currently, December is the cheapest month in which you can book a flight from Columbus Airport to St. Louis (average of $259). Flying from Columbus Airport to St. Louis in July is currently the most expensive (average of $500). 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 CMH to STL?

Find hourly flight availability from Columbus 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 April 22, 2026.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 32% on flights from Columbus Airport to St. Louis by exploring options for tickets at noon.

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

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated April 22, 2026.
Read through reviews of airlines operating flights from Columbus Airport to St. Louis, such as Southwest and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Columbus 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 airport do you fly into for flights to St. Louis from Columbus?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Columbus. On average, Lambert-St Louis has 1 inbound flight from Columbus per day from 2 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

  • How long is the flight from Columbus Airport to St. Louis?

    For as low as $266, Southwest can have you in St. Louis from Columbus Airport in 4h 20m. Columbus Airport and St. Louis are separated by a distance of 409 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Columbus Airport to St. Louis round-trip?

    According to our current data, Southwest ($186), and American Airlines ($188) offers the cheapest pricing from Columbus Airport to St. Louis. You may be able to fly from Columbus Airport to St. Louis for 48% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Columbus Airport to St. Louis one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $116. United Airlines flights start at $138 while deals on American Airlines start at $199 one-way.

  • What are the cheapest flights from Columbus Airport to St. Louis?

    Looking at all options, your cheapest flight can be booked for $152. While the most popular route (Columbus - Lambert-St Louis) can be booked for $198 on average, our data indicates $373 when flying from Columbus Airport to St. Louis.

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

    Yes. In addition to deals on Columbus to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Columbus to St. Louis.

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

    Yes. Cheapflights offers flight deals from Columbus 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 Columbus Airport to St. Louis?

    Currently, December is the cheapest month in which you can book a flight from Columbus Airport to St. Louis (average of $259). Flying from Columbus Airport to St. Louis in July is currently the most expensive (average of $500). 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

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Columbus to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Columbus to St. Louis

Discover the top 2 airlines that operate flights from Columbus to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$186Average$355FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$188Average$470FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.