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$179+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — STL
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$229
(American Airlines)

One-way from

$179
(Delta)

Popular in

April

Cheapest in

July

Average price

$338
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. 27% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 10% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 14, 2025.

This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:56 pmDAY - STL
1 stop5h 51mAmerican Airlines
Wed 12/175:05 amSTL - DAY
1 stop6h 15mAmerican Airlines
Deal found 10/13$229
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:05 amDAY - STL
1 stop5h 21mDelta
Sat 11/17:05 amSTL - DAY
1 stop4h 39mDelta
Deal found 10/13$239
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:21 amDAY - STL
1 stop4h 28mUnited Airlines
Sun 10/266:30 amSTL - DAY
1 stop3h 38mUnited Airlines
Deal found 10/12$254
This American Airlines deal was found by Cheapflights users on 10/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:00 amDAY - STL
1 stop4h 38mAmerican Airlines
Sun 10/197:16 amSTL - DAY
1 stop3h 39mAmerican Airlines
Deal found 10/13$289
This Delta deal was found by Cheapflights users on 10/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:34 pmDAY - STL
1 stop6h 06mDelta
Tue 12/167:05 amSTL - DAY
1 stop6h 05mDelta
Deal found 10/13$372
This Delta deal was found by Cheapflights users on 10/12. 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.
Fri 10/173:17 pmDAY - STL
1 stop7h 11mDelta
Mon 10/207:05 amSTL - DAY
1 stop4h 39mDelta
Deal found 10/12$379
This American Airlines deal was found by Cheapflights users on 10/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:23 pmDAY - STL
1 stop6h 26mAmerican Airlines
Fri 10/317:16 amSTL - DAY
1 stop3h 39mAmerican Airlines
Deal found 10/12$384
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Tue 10/2811:43 amDAY - STL
1 stop5h 04mUnited Airlines
Sat 11/19:00 amSTL - DAY
2 stops13h 43mUnited Airlines
Deal found 10/13$472
This United Airlines deal was found by Cheapflights users on 10/13. 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.
Sun 12/147:15 amDAY - STL
1 stop6h 00mUnited Airlines
Tue 12/166:30 amSTL - DAY
2 stops11h 47mUnited Airlines
Deal found 10/13$503
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:43 amDAY - STL
1 stop5h 03mUnited Airlines
Fri 10/316:30 amSTL - DAY
2 stops11h 31mUnited Airlines
Deal found 10/12$595
This United Airlines deal was found by Cheapflights users on 10/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/251:38 pmDAY - STL
1 stop5h 39mUnited Airlines
Mon 10/276:30 amSTL - DAY
2 stops6h 44mUnited Airlines
Deal found 10/12$691

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 October 14, 2025.
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

Wed 2/18

6:40 pm-11:40 pm

1 stop6h 00m

Lambert-St Louis

Sat 2/21

10:00 am-2:46 pm

1 stop3h 46m

$229

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 12/13

5:56 pm-10:47 pm

1 stop5h 51m

Lambert-St Louis

Wed 12/17

5:05 am-12:20 pm

1 stop6h 15m

$229

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 12/13

12:51 pm-4:19 pm

1 stop4h 28m

Lambert-St Louis

Tue 12/16

1:20 pm-9:51 pm

1 stop7h 31m

$229

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 10/28

6:05 am-10:26 am

1 stop5h 21m

Lambert-St Louis

Sat 11/1

7:05 am-12:44 pm

1 stop4h 39m

$239

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 10/24

7:21 am-10:49 am

1 stop4h 28m

Lambert-St Louis

Sun 10/26

6:30 am-11:08 am

1 stop3h 38m

$254

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 10/25

5:30 pm-10:04 pm

1 stop5h 34m

Lambert-St Louis

Mon 10/27

7:05 am-2:32 pm

1 stop6h 27m

$254

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 12/14

6:34 pm-11:40 pm

1 stop6h 06m

Lambert-St Louis

Wed 12/17

6:00 am-2:10 pm

1 stop7h 10m

$372

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 10/29

2:10 pm-7:39 pm

1 stop6h 29m

Lambert-St Louis

Fri 10/31

5:24 pm-11:43 pm

1 stop5h 19m

$384

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 10/27

6:23 pm-11:49 pm

1 stop6h 26m

Lambert-St Louis

Fri 10/31

7:16 am-11:55 am

1 stop3h 39m

$384

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 10/28

11:43 am-3:47 pm

1 stop5h 04m

Lambert-St Louis

Sat 11/1

9:00 am-11:43 pm

2 stops13h 43m

$472

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/13

Showing 1-10 of 18 results
1
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dayton-St. Louis flight deals on Cheapflights vs. FlightHub >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 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 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 April is currently the most expensive (average of $239). 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 DAY to STL?

Find hourly flight availability from Dayton 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 October 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Dayton to St. Louis in the morning. If you’re flexible enough to do this you can expect to save up to 40% on your trip compared to booking a flight at noon.

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 October 14, 2025.
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
8.0
Very good
7,975 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
8.0
Very good
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,976 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,042 reviews
Delta
8.0
Very good
7,975 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 $229, Delta can have you in St. Louis from Dayton in 5h 51m. 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, American Airlines ($228), Delta ($228), and United Airlines ($228) offers the cheapest pricing from Dayton to St. Louis. These flights start at 37% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Dayton to St. Louis are Delta ($179), United Airlines ($224), and American Airlines ($237).

  • 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 April is currently the most expensive (average of $239). 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
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$321FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$323FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$348FlexibilityNo cancel feeOn-time69%

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