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$244+ Cheap flights from St. Louis to Dayton (STL - DAY)

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DAY
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap flight deals from St. Louis to Dayton

Cheapest flights from St. Louis to Dayton
Explore the most affordable flight options available from St. Louis to Dayton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

This Delta deal was found by Cheapflights users on 7/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 am
STL
-
DAY
1 stop6h 17m
Delta
Tue 8/253:06 pm
DAY
-
STL
1 stop4h 21m
Delta
Deal found 7/20$271
This United Airlines deal was found by Cheapflights users on 7/18. 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 8/156:00 am
STL
-
DAY
1 stop3h 58m
United Airlines
Sat 8/226:00 am
DAY
-
STL
1 stop7h 03m
United Airlines
Deal found 7/18$280
This American Airlines deal was found by Cheapflights users on 7/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:00 am
STL
-
DAY
1 stop5h 11m
American Airlines
Sat 8/298:25 am
DAY
-
STL
1 stop5h 30m
American Airlines
Deal found 7/22$282
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 am
STL
-
DAY
1 stop5h 45m
Delta
Mon 8/2411:26 am
DAY
-
STL
1 stop5h 51m
Delta
Deal found 7/21$299
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:00 am
STL
-
DAY
1 stop3h 58m
United Airlines
Fri 8/146:00 am
DAY
-
STL
1 stop7h 02m
United Airlines
Deal found 7/20$304
This Delta deal was found by Cheapflights users on 7/22. 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.
Fri 8/75:23 pm
STL
-
DAY
1 stop5h 33m
Delta
Tue 8/116:30 pm
DAY
-
STL
1 stop5h 51m
Delta
Deal found 7/22$329
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:08 pm
STL
-
DAY
1 stop6h 23m
United Airlines
Sat 11/142:44 pm
DAY
-
STL
1 stop5h 31m
United Airlines
Deal found 7/20$341
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:43 am
STL
-
DAY
1 stop4h 35m
United Airlines
Sun 7/266:15 pm
DAY
-
STL
1 stop6h 14m
United Airlines
Deal found 7/20$370
This Delta deal was found by Cheapflights users on 7/23. 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 7/273:58 pm
STL
-
DAY
1 stop6h 53m
Delta
Mon 8/36:30 pm
DAY
-
STL
1 stop6h 28m
Delta
Deal found 7/23$379
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:13 pm
STL
-
DAY
1 stop6h 09m
United Airlines
Sat 8/82:23 pm
DAY
-
STL
1 stop4h 04m
United Airlines
Deal found 7/20$389

Find flight deals from St. Louis to Dayton

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Dayton (DAY). 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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(Delta)

One-way from

$244
(American Airlines)

Popular in

April

Cheapest in

October

Average price

$390
Provider with most accurate pricing for Lambert-St Louis-Dayton flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Dayton flights.
Search Deals
From Lambert-St Louis to Dayton
Search Deals
One-way flight from Lambert-St Louis to Dayton
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($146 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Dayton 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 July 23, 2026.
Use the filters below to find and compare flights from St. Louis to Dayton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Wed 8/19

7:00 am-2:17 pm

1 stop6h 17m

Dayton

Tue 8/25

3:06 pm-6:27 pm

1 stop4h 21m

$271

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 8/22

5:00 am-11:11 am

1 stop5h 11m

Dayton

Sat 8/29

8:25 am-12:55 pm

1 stop5h 30m

$282
Quickest round-trip

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Wed 8/19

9:15 am-2:17 pm

1 stop4h 02m

Dayton

Wed 8/26

3:06 pm-6:27 pm

1 stop4h 21m

$290

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Fri 8/21

11:00 am-5:45 pm

1 stop5h 45m

Dayton

Mon 8/24

11:26 am-4:17 pm

1 stop5h 51m

$299

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Fri 8/7

5:23 pm-11:56 pm

1 stop5h 33m

Dayton

Tue 8/11

6:30 pm-11:21 pm

1 stop5h 51m

$329

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Tue 11/10

1:08 pm-8:31 pm

1 stop6h 23m

Dayton

Sat 11/14

2:44 pm-7:15 pm

1 stop5h 31m

$341

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Tue 8/4

1:13 pm-8:22 pm

1 stop6h 09m

Dayton

Sat 8/8

2:23 pm-5:27 pm

1 stop4h 04m

$389

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Thu 8/6

6:00 am-10:58 am

1 stop3h 58m

Dayton

Sun 8/9

5:40 am-10:34 am

1 stop5h 54m

$399

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sun 8/23

5:00 am-11:52 am

1 stop5h 52m

Dayton

Wed 8/26

12:22 pm-4:24 pm

1 stop5h 02m

$437
Cheapest one-way
Quickest one-way

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Tue 8/18

5:30 pm-11:59 pm

1 stop5h 29m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

Compare providers for flights from St. Louis to Dayton

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 St. Louis to Dayton in July.
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 St. Louis-Dayton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Dayton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Dayton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Dayton 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 St. Louis-Dayton 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 St. Louis to Dayton

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

Reviews of airlines servicing Dayton

Get insights into the airlines that provide service to Dayton. 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 Dayton. Reviews last updated July 23, 2026.
Read through reviews of airlines operating flights from St. Louis to Dayton, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,024 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
10,024 reviews
United Airlines
7.4
Good
10,024 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
American Airlines
7.1
Good
11,832 reviews
United Airlines
7.4
Good
10,024 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Dayton. 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 St. Louis to Dayton?

    Delta and American Airlines can get you from St. Louis to Dayton in just under 5h 11m. Your travel time can differ by up to 1h 06m. There are 338 mi between St. Louis and Dayton. This flight may include one or multiple stops.

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

    According to our current data, United Airlines ($248), and American Airlines ($288) offers the cheapest pricing from St. Louis to Dayton. You may be able to fly from St. Louis to Dayton for 46% less than the average price by searching for these airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Dayton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Dayton?

Book flights to Dayton if you plan to visit one of these locations
Huber Heights
Springfield
Troy
Greenville
Miamisburg

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. Louis to Dayton

Discover the top 2 airlines that operate flights from St. Louis to Dayton. 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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$360FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$318FlexibilityNo cancel feeOn-time71%

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