HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$194+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — STL
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dayton 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 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 11, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(Delta)

One-way from

$194
(American Airlines)

Popular in

April

Cheapest in

July

Average price

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

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 11, 2026.

This Delta deal was found by Cheapflights users on 1/8. 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 1/2211:37 amDAY - STL
1 stop4h 12mDelta
Sun 1/256:00 amSTL - DAY
1 stop3h 50mDelta
Deal found 1/8$259
This United Airlines deal was found by Cheapflights users on 1/8. 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.
Sun 1/119:05 amDAY - STL
1 stop4h 24mUnited Airlines
Sat 2/78:05 amSTL - DAY
1 stop4h 18mUnited Airlines
Deal found 1/8$284
This American Airlines deal was found by Cheapflights users on 1/8. 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 1/116:00 amDAY - STL
1 stop6h 31mAmerican Airlines
Sat 2/711:05 amSTL - DAY
2 stops9h 03mAmerican Airlines
Deal found 1/8$289
This American Airlines deal was found by Cheapflights users on 1/8. 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 1/116:00 amDAY - STL
1 stop6h 31mAmerican Airlines
Sun 1/187:15 amSTL - DAY
1 stop6h 40mAmerican Airlines
Deal found 1/8$309
This United Airlines deal was found by Cheapflights users on 1/9. 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 1/2410:50 amDAY - STL
1 stop6h 13mUnited Airlines
Wed 1/288:05 amSTL - DAY
1 stop4h 18mUnited Airlines
Deal found 1/9$319
This American Airlines deal was found by Cheapflights users on 1/8. 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.
Mon 3/165:47 amDAY - STL
1 stop7h 57mAmerican Airlines
Fri 3/2010:33 amSTL - DAY
1 stop5h 32mAmerican Airlines
Deal found 1/8$341
This Delta deal was found by Cheapflights users on 1/10. 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 4/246:44 pmDAY - STL
1 stop5h 49mDelta
Mon 4/276:59 pmSTL - DAY
1 stop4h 13mDelta
Deal found 1/10$343
This United Airlines deal was found by Cheapflights users on 1/8. 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 amDAY - STL
1 stop6h 23mUnited Airlines
Tue 1/206:40 pmSTL - DAY
1 stop4h 04mUnited Airlines
Deal found 1/8$359
This Delta deal was found by Cheapflights users on 1/9. 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 2/186:44 pmDAY - STL
1 stop5h 52mDelta
Fri 2/206:00 amSTL - DAY
1 stop3h 55mDelta
Deal found 1/9$372
This United Airlines deal was found by Cheapflights users on 1/10. 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 2/135:49 pmDAY - STL
1 stop6h 10mUnited Airlines
Sun 2/156:55 pmSTL - DAY
1 stop3h 48mUnited Airlines
Deal found 1/10$378
This Delta deal was found by Cheapflights users on 1/9. 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 4/152:46 pmDAY - STL
1 stop4h 08mDelta
Fri 4/1711:43 amSTL - DAY
1 stop5h 16mDelta
Deal found 1/9$381
This Delta deal was found by Cheapflights users on 1/11. 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.
Mon 2/236:44 pmDAY - STL
1 stop5h 52mDelta
Thu 2/266:00 amSTL - DAY
1 stop6h 50mDelta
Deal found 1/11$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 11, 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

Thu 1/22

11:37 am-2:49 pm

1 stop4h 12m

Lambert-St Louis

Sun 1/25

6:00 am-10:50 am

1 stop3h 50m

$259

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 1/24

10:50 am-4:03 pm

1 stop6h 13m

Lambert-St Louis

Wed 1/28

8:05 am-1:23 pm

1 stop4h 18m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 4/24

6:44 pm-11:33 pm

1 stop5h 49m

Lambert-St Louis

Mon 4/27

6:59 pm-12:12 am

1 stop4h 13m

$343

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 2/18

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Fri 2/20

6:00 am-10:55 am

1 stop3h 55m

$372

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 2/13

5:49 pm-10:59 pm

1 stop6h 10m

Lambert-St Louis

Sun 2/15

6:55 pm-11:43 pm

1 stop3h 48m

$378

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 2/23

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Thu 2/26

7:10 am-1:50 pm

1 stop5h 40m

$387

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 7/1

11:05 am-2:37 pm

1 stop4h 32m

Lambert-St Louis

Sat 7/11

3:42 pm-11:15 pm

1 stop6h 33m

$387

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/16

8:32 am-11:24 am

1 stop3h 52m

Lambert-St Louis

Fri 4/17

6:00 am-11:59 am

1 stop4h 59m

$417

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 2/18

5:49 pm-10:59 pm

1 stop6h 10m

Lambert-St Louis

Fri 2/20

6:00 pm-2:22 pm

2 stops19h 22m

$442

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 3/20

5:47 am-12:44 pm

1 stop7h 57m

Lambert-St Louis

Sun 3/22

8:00 am-3:41 pm

1 stop6h 41m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/9

Showing 1-10 of 15 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 11, 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
8,039 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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
8,039 reviews
Delta
7.9
Good
8,039 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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
9,144 reviews
Delta
7.9
Good
8,039 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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
11,101 reviews
Delta
7.9
Good
8,039 reviews

Entertainment

7.8

Boarding

8.1

Overall

7.9

Crew

8.5

Food

7.2

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, Delta can have you in St. Louis from Dayton in 4h 12m. 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

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 Dayton to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to St. Louis flights
Detroit to Kansas City flights
Cincinnati to Kansas City flights
Pittsburgh to St. Louis flights
Cleveland to St. Louis flights
Columbus to St. Louis flights
Cincinnati to St. Louis flights
Columbus to Kansas City flights
Cleveland to Kansas City flights
Detroit to Springfield flights
Akron to Springfield flights
Cleveland to Springfield flights
Pittsburgh to Kansas City flights
Dayton to Kansas City flights
Akron to Kansas City flights
Akron to St. Louis flights
Columbus to Springfield flights
Detroit to Columbia flights
Pittsburgh to Springfield flights
Cincinnati to Springfield flights
Dayton to Springfield flights
Pittsburgh to Joplin flights
Detroit to Joplin flights
Erie to St. Louis flights
Toledo to St. Louis flights
Huntington to Kansas City flights
Dayton to Quincy flights
Huntington to Springfield flights
Erie to Joplin flights
Detroit to Branson flights
Toledo to Columbia flights
Toledo to Kansas City flights
Toledo to Springfield flights
Dayton to Columbia flights

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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$222Average$338FlexibilityNo cancel feeOn-time69%
DeltaCheapest$228Average$323FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$233Average$335FlexibilityNo 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.
Site
©2026 Cheapflights