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St. Louis

$42+ Cheap flights from Ohio 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — STL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Ohio to St. Louis

Keep the following information in mind while searching for Ohio to St. Louis flight deals. Data was last updated August 14, 2025.

Round-trip from

$97
(FlightHub)

One-way from

$42
(FlightHub)

Popular in

January

Cheapest in

April

Average price

$274

Good round-trip deal

$236 or less

Good one-way deal

$109 or less
From Ohio to Lambert-St Louis
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One-way flight from Ohio to Lambert-St Louis
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Highest demand for flights based on searches. 15% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Ohio to Lambert-St Louis.
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Price to beat on a one-way flight from Ohio to Lambert-St Louis.
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Find flight deals from Ohio to St. Louis

Cheapest flights from Ohio to St. Louis
Explore the most affordable flight options available from Ohio to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Sun 8/312:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Deal found 8/12$86
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Mon 9/12:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Deal found 8/14$108
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/291:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Sun 8/312:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Deal found 8/13$110
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/251:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Sun 8/312:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Deal found 8/12$119
This Southwest deal was found by Cheapflights users on 8/12. 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.
Thu 9/258:55 amDTW - STL
Nonstop1h 35mSouthwest
Tue 9/305:25 pmSTL - DTW
Nonstop1h 30mSouthwest
Deal found 8/12$137
This Delta deal was found by Cheapflights users on 8/12. 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.
Thu 9/46:25 pmDTW - STL
Nonstop1h 36mDelta
Sun 9/76:40 amSTL - DTW
Nonstop1h 33mDelta
Deal found 8/12$139
This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:00 amCLE - STL
1 stop7h 02mFrontier
Thu 9/184:00 pmSTL - CLE
1 stop7h 43mFrontier
Deal found 8/14$144
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/211:00 pmDTW - STL
Nonstop1h 32mSpirit Airlines
Fri 8/222:30 pmSTL - DTW
Nonstop1h 30mSpirit Airlines
Deal found 8/13$148
This Southwest deal was found by Cheapflights users on 8/14. 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.
Thu 9/188:15 pmDTW - STL
Nonstop1h 35mSouthwest
Sun 9/2111:15 amSTL - DTW
Nonstop1h 30mSouthwest
Deal found 8/14$154
This Southwest deal was found by Cheapflights users on 8/14. 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 10/287:25 pmDTW - STL
Nonstop1h 35mSouthwest
Wed 10/295:30 pmSTL - DTW
Nonstop1h 30mSouthwest
Deal found 8/14$155
This Southwest deal was found by Cheapflights users on 8/13. 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.
Wed 9/109:10 amCMH - STL
Nonstop1h 25mSouthwest
Wed 9/106:40 pmSTL - CMH
Nonstop1h 20mSouthwest
Deal found 8/13$155
This Southwest deal was found by Cheapflights users on 8/13. 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.
Thu 9/48:55 amDTW - STL
Nonstop1h 35mSouthwest
Sat 9/65:55 pmSTL - DTW
Nonstop1h 30mSouthwest
Deal found 8/13$158

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ohio 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 August 14, 2025.
Use the filters below to find and compare flights from Ohio to St. Louis that are best for you.

Fly from

Ohio

Fly to

St. Louis

Route

Depart

Return

Price

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/28

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Mon 9/1

2:30 pm-5:00 pm

Nonstop1h 30m

$97

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 8/28

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Sun 8/31

2:30 pm-5:00 pm

Nonstop1h 30m

$106

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 8/29

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Mon 9/1

2:30 pm-5:00 pm

Nonstop1h 30m

$108

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Fri 8/29

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Sun 8/31

2:30 pm-5:00 pm

Nonstop1h 30m

$108

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Mon 8/25

1:00 pm-1:32 pm

Nonstop1h 32m

Lambert-St Louis

Sun 8/31

2:30 pm-5:00 pm

Nonstop1h 30m

$130

ClevelandSt. Louis

CLE - STL

CLESTL

Cleveland Hopkins Intl

Mon 9/15

7:00 am-1:02 pm

1 stop7h 02m

Lambert-St Louis

Thu 9/18

4:00 pm-12:43 am

1 stop7h 43m

$144

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Thu 9/18

8:15 pm-8:50 pm

Nonstop1h 35m

Lambert-St Louis

Sun 9/21

11:15 am-1:45 pm

Nonstop1h 30m

$154

DetroitSt. Louis

DTW - STL

DTWSTL

Detroit Metropolitan Wayne County

Wed 9/17

7:40 am-8:15 am

Nonstop1h 35m

Lambert-St Louis

Wed 9/24

5:25 pm-7:55 pm

Nonstop1h 30m

$155

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Wed 9/10

9:10 am-9:35 am

Nonstop1h 25m

Lambert-St Louis

Wed 9/10

6:40 pm-9:00 pm

Nonstop1h 20m

$155

ColumbusSt. Louis

CMH - STL

CMHSTL

Columbus

Fri 9/12

7:17 pm-11:07 pm

1 stop4h 50m

Lambert-St Louis

Sun 9/14

5:18 am-1:33 pm

1 stop7h 15m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 results
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Best time to book a flight from Ohio to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from Ohio to St. Louis (average of $311). Flying from Ohio 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 OH to STL?

Find hourly flight availability from Ohio 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 August 14, 2025.

When flying from Ohio to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Related info for your journey

Find useful and relevant information for your journey from Ohio 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 Ohio?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from Ohio to St. Louis.

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

    $42 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Southwest and Frontier, with prices starting from $60 and $73, respectively.

  • What are the most popular routes from Ohio to St. Louis?

    While some choose either Columbus - Lambert-St Louis or Pittsburgh - Lambert-St Louis, Detroit Metropolitan Wayne County - Lambert-St Louis is the most popular route from Ohio to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ohio 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 Ohio to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Ohio to St. Louis (average of $311). Flying from Ohio 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

Traveling to a place near St. Louis?

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

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Alternative routes for Ohio to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Ohio to St. Louis

Discover the top 5 airlines that operate flights from Ohio 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$112Average$228FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$172Average$340FlexibilityNo cancel feeOn-time71%
DeltaCheapest$176Average$353FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$213Average$326FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$222Average$369FlexibilityNo cancel feeOn-time69%

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