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$190+ 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 3/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DAY
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
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 January 26, 2026.

This United Airlines deal was found by Cheapflights users on 1/25. 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 2/248:30 am
STL
-
DAY
1 stop4h 52m
United Airlines
Sat 2/285:49 pm
DAY
-
STL
1 stop4h 16m
United Airlines
Deal found 1/25$309
This American Airlines deal was found by Cheapflights users on 1/25. 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 5/306:00 am
STL
-
DAY
1 stop4h 15m
American Airlines
Mon 6/15:55 am
DAY
-
STL
1 stop5h 44m
American Airlines
Deal found 1/25$334
This United Airlines deal was found by Cheapflights users on 1/24. 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.
Wed 1/284:49 pm
STL
-
DAY
1 stop4h 12m
United Airlines
Sat 1/312:04 pm
DAY
-
STL
1 stop4h 39m
United Airlines
Deal found 1/24$369
This American Airlines deal was found by Cheapflights users on 1/25. 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 5/306:00 am
STL
-
DAY
1 stop4h 15m
American Airlines
Sun 5/315:55 am
DAY
-
STL
1 stop5h 44m
American Airlines
Deal found 1/25$385
This American Airlines deal was found by Cheapflights users on 1/25. 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 5/299:17 am
STL
-
DAY
1 stop5h 14m
American Airlines
Mon 6/15:55 am
DAY
-
STL
1 stop5h 44m
American Airlines
Deal found 1/25$407
This American Airlines deal was found by Cheapflights users on 1/25. 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 5/299:17 am
STL
-
DAY
1 stop5h 14m
American Airlines
Sun 5/315:55 am
DAY
-
STL
1 stop5h 44m
American Airlines
Deal found 1/25$458
This United Airlines deal was found by Cheapflights users on 1/25. 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 5/306:40 am
STL
-
DAY
1 stop5h 04m
United Airlines
Sun 5/3111:39 am
DAY
-
STL
1 stop4h 42m
United Airlines
Deal found 1/25$459
This Delta deal was found by Cheapflights users on 1/25. 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 2/99:59 am
STL
-
DAY
1 stop6h 59m
Delta
Fri 2/136:44 pm
DAY
-
STL
1 stop5h 52m
Delta
Deal found 1/25$499
This United Airlines deal was found by Cheapflights users on 1/25. 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 2/93:11 pm
STL
-
DAY
1 stop5h 51m
United Airlines
Fri 2/135:49 pm
DAY
-
STL
1 stop4h 51m
United Airlines
Deal found 1/25$559

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(United Airlines)

One-way from

$190
(American Airlines)

Popular in

January

Cheapest in

August

Average price

$696
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. 21% potential increase in price ($97 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 26, 2026.
Use the filters below to find and compare flights from St. Louis to Dayton that are best for you.

Fly from

St. Louis

Fly to

Dayton

Route

Depart

Return

Price

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Tue 2/24

8:30 am-2:22 pm

1 stop4h 52m

Dayton

Sat 2/28

5:49 pm-9:05 pm

1 stop4h 16m

$309

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 5/30

6:00 am-11:15 am

1 stop4h 15m

Dayton

Mon 6/1

5:55 am-10:39 am

1 stop5h 44m

$334

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 5/30

6:00 am-11:15 am

1 stop4h 15m

Dayton

Sun 5/31

5:55 am-10:39 am

1 stop5h 44m

$385

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 5/30

6:40 am-12:44 pm

1 stop5h 04m

Dayton

Sun 5/31

11:39 am-3:21 pm

1 stop4h 42m

$459

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Mon 2/9

9:59 am-5:58 pm

1 stop6h 59m

Dayton

Fri 2/13

6:44 pm-11:36 pm

1 stop5h 52m

$499

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Mon 2/9

3:11 pm-10:02 pm

1 stop5h 51m

Dayton

Fri 2/13

5:49 pm-9:40 pm

1 stop4h 51m

$559

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Mon 3/23

7:00 pm-2:22 pm

2 stops18h 22m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

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 January.
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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Dayton

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

Currently, September is the cheapest month in which you can book a flight from St. Louis to Dayton (average of $161). Flying from St. Louis to Dayton in June is currently the most expensive (average of $294). 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 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 January 26, 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
9,199 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,199 reviews
United Airlines
7.4
Good
9,199 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,189 reviews
United Airlines
7.4
Good
9,199 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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?

    United Airlines, American Airlines, and Delta can get you from St. Louis to Dayton in just under 4h 15m. Your travel time can differ by up to 2h 44m. 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, American Airlines ($228), and United Airlines ($228) offers the cheapest pricing from St. Louis to Dayton. You may be able to fly from St. Louis to Dayton for 36% 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.

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

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Dayton (average of $161). Flying from St. Louis to Dayton in June is currently the most expensive (average of $294). 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 Dayton?

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

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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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$348FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$298FlexibilityNo cancel feeOn-time71%

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