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$229+ Cheap flights from St. Louis to Dayton (STL - DAY)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DAY
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
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Cheap 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 julio 29, 2025.

Round-trip from

$229
(Delta)

Popular in

March

Cheapest in

August

Average price

$289
From Lambert-St Louis to Dayton
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find 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 julio 29, 2025.

This Delta deal was found by Cheapflights users on 7/28. 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.
mar. 9/23:36 pmSTL - DAY
1 stop6h 47mDelta
sáb. 9/64:30 pmDAY - STL
1 stop6h 32mDelta
Deal found 7/28$229
This American Airlines deal was found by Cheapflights users on 7/28. 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.
vie. 8/151:15 pmSTL - DAY
1 stop7h 32mAmerican Airlines
lun. 8/256:10 amDAY - STL
1 stop4h 19mAmerican Airlines
Deal found 7/28$234
This United Airlines deal was found by Cheapflights users on 7/28. 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.
vie. 9/56:35 amSTL - DAY
1 stop3h 32mUnited Airlines
sáb. 9/611:42 amDAY - STL
1 stop3h 37mUnited Airlines
Deal found 7/28$289

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 julio 29, 2025.
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

mar. 9/2

3:36 pm-11:23 pm

1 stop6h 47m

Dayton

sáb. 9/6

4:30 pm-10:02 pm

1 stop6h 32m

$229

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

vie. 8/15

1:15 pm-9:47 pm

1 stop7h 32m

Dayton

lun. 8/25

6:10 am-9:29 am

1 stop4h 19m

$234

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

vie. 9/5

6:35 am-11:07 am

1 stop3h 32m

Dayton

sáb. 9/6

11:42 am-2:19 pm

1 stop3h 37m

$289

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

jue. 8/7

4:32 pm-10:00 pm

1 stop4h 28m

$284

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

jue. 8/7

5:00 am-6:59 pm

2 stops12h 59m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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, August is the cheapest month in which you can book a flight from St. Louis to Dayton (average of $325). Flying from St. Louis to Dayton in March is currently the most expensive (average of $396). 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 STL to DAY?

Find hourly flight availability from St. Louis to Dayton. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 29, 2025.

A simple way to save on the total cost of your ticket is to fly from St. Louis to Dayton in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from St. Louis to Dayton?

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 julio 29, 2025.
Read through reviews of airlines operating flights from St. Louis to Dayton, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    According to our current data, Delta ($229), American Airlines ($234), and United Airlines ($289) offers the cheapest pricing from St. Louis to Dayton. You may be able to fly from St. Louis to Dayton for 32% 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, August is the cheapest month in which you can book a flight from St. Louis to Dayton (average of $325). Flying from St. Louis to Dayton in March is currently the most expensive (average of $396). 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
Springfield
Troy
Xenia
Miamisburg
Richmond

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Top airline flying from St. Louis to Dayton

Discover the top airline 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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$218Average$318FlexibilityNo cancel feeOn-time71%

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