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$228+ Cheap flights from Dayton to St. Louis (DAY - 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — STL
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Dayton to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) 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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(American Airlines)

One-way from

$214
(United Airlines)

Popular in

April

Cheapest in

July

Average price

$298
Provider with most accurate pricing for Dayton-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Dayton-Lambert-St Louis flights.
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From Dayton to Lambert-St Louis
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One-way flight from Dayton to Lambert-St Louis
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Highest demand for flights based on searches. 28% potential increase in price ($145 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Dayton to St. Louis

Cheapest flights from Dayton to St. Louis
Explore the most affordable flight options available from Dayton to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:47 am
DAY
-
STL
1 stop7h 46m
American Airlines
Sat 2/2110:43 am
STL
-
DAY
1 stop5h 22m
American Airlines
Deal found 1/15$249
This Delta deal was found by Cheapflights users on 1/15. 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.
Fri 1/306:47 pm
DAY
-
STL
1 stop5h 50m
Delta
Tue 2/36:00 am
STL
-
DAY
1 stop3h 50m
Delta
Deal found 1/15$259
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/306:14 pm
DAY
-
STL
1 stop5h 45m
American Airlines
Tue 2/311:05 am
STL
-
DAY
2 stops8h 33m
American Airlines
Deal found 1/15$264
This Delta deal was found by Cheapflights users on 1/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/216:47 pm
DAY
-
STL
1 stop5h 50m
Delta
Sun 1/256:00 am
STL
-
DAY
1 stop3h 50m
Delta
Deal found 1/14$299
This United Airlines deal was found by Cheapflights users on 1/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/165:47 pm
DAY
-
STL
1 stop4h 26m
United Airlines
Mon 1/196:40 pm
STL
-
DAY
1 stop4h 04m
United Airlines
Deal found 1/15$319
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:47 am
DAY
-
STL
1 stop7h 46m
American Airlines
Sat 2/288:00 am
STL
-
DAY
2 stops8h 26m
American Airlines
Deal found 1/15$323
This American Airlines deal was found by Cheapflights users on 1/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/217:44 am
DAY
-
STL
2 stops8h 06m
American Airlines
Sun 1/253:37 pm
STL
-
DAY
1 stop5h 55m
American Airlines
Deal found 1/14$364
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/179:05 am
DAY
-
STL
1 stop4h 24m
United Airlines
Tue 1/204:49 pm
STL
-
DAY
1 stop5h 55m
United Airlines
Deal found 1/13$369
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:47 am
DAY
-
STL
1 stop7h 46m
American Airlines
Tue 2/248:00 am
STL
-
DAY
2 stops7h 05m
American Airlines
Deal found 1/15$384
This Delta deal was found by Cheapflights users on 1/15. 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.
Tue 2/176:00 am
DAY
-
STL
1 stop6h 02m
Delta
Tue 2/175:00 pm
STL
-
DAY
1 stop4h 43m
Delta
Deal found 1/15$387

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton 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 January 15, 2026.
Use the filters below to find and compare flights from Dayton to St. Louis that are best for you.

Fly from

Dayton

Fly to

St. Louis

Route

Depart

Return

Price

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/14

5:47 am-12:33 pm

1 stop7h 46m

Lambert-St Louis

Sat 2/21

10:43 am-5:05 pm

1 stop5h 22m

$249

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 2/26

5:47 am-12:33 pm

1 stop7h 46m

Lambert-St Louis

Sat 2/28

1:30 pm-10:31 pm

1 stop8h 01m

$249

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 1/30

6:47 pm-11:37 pm

1 stop5h 50m

Lambert-St Louis

Tue 2/3

6:00 am-10:50 am

1 stop3h 50m

$259

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 1/30

6:14 pm-10:59 pm

1 stop5h 45m

Lambert-St Louis

Tue 2/3

11:05 am-8:38 pm

2 stops8h 33m

$264

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 1/30

9:05 am-2:30 pm

1 stop6h 25m

Lambert-St Louis

Tue 2/3

6:40 pm-11:45 pm

1 stop4h 05m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 2/17

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Thu 2/19

6:00 am-10:55 am

1 stop3h 55m

$379

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 2/22

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Tue 2/24

6:00 am-10:55 am

1 stop3h 55m

$379

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 2/18

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Thu 2/19

6:00 am-10:55 am

1 stop3h 55m

$379

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 2/17

6:00 am-11:02 am

1 stop6h 02m

Lambert-St Louis

Tue 2/17

5:00 pm-10:43 pm

1 stop4h 43m

$387

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 2/18

11:00 am-2:29 pm

1 stop4h 29m

Lambert-St Louis

Wed 2/18

6:55 pm-11:43 pm

1 stop3h 48m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 18 results
1
2

Compare providers for flights from Dayton 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 Dayton to St. Louis in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Dayton-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dayton-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dayton-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dayton-St. Louis flights, Cheapflights users trust eDreams the most. eDreams 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 Dayton-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 Dayton to St. Louis

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

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

Currently, October is the cheapest month in which you can book a flight from Dayton to St. Louis (average of $85). Flying from Dayton to St. Louis in November is currently the most expensive (average of $249). 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.

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 January 15, 2026.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Dayton to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,048 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,048 reviews
Delta
7.9
Good
8,048 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,163 reviews
Delta
7.9
Good
8,048 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,129 reviews
Delta
7.9
Good
8,048 reviews

Food

7.2

Entertainment

7.8

Crew

8.5

Overall

7.9

Boarding

8.1

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Dayton to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $259, American Airlines can have you in St. Louis from Dayton in 5h 50m. Dayton and St. Louis are separated by a distance of 338 mi. This flight may include one or multiple stops.

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

    According to our current data, United Airlines ($222), Delta ($228), and American Airlines ($233) offers the cheapest pricing from Dayton to St. Louis. These flights start at 37% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Dayton to St. Louis (average of $85). Flying from Dayton to St. Louis in November is currently the most expensive (average of $249). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Dayton to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Dayton to St. Louis

Discover the top 3 airlines that operate flights from Dayton 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$222Average$338FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$233Average$331FlexibilityNo cancel feeOn-time71%

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