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$115+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DAY
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
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 December 15, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 12/294:53 pmSTL - DAY
1 stop5h 57mAmerican Airlines
Fri 1/27:30 pmDAY - STL
1 stop5h 25mAmerican Airlines
Deal found 12/14$259
This United Airlines deal was found by Cheapflights users on 12/14. 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 12/296:35 pmSTL - DAY
1 stop4h 09mUnited Airlines
Fri 1/29:00 amDAY - STL
1 stop6h 26mUnited Airlines
Deal found 12/14$393
This American Airlines deal was found by Cheapflights users on 12/13. 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.
Tue 12/235:16 pmSTL - DAY
1 stop5h 23mAmerican Airlines
Thu 12/255:40 pmDAY - STL
1 stop6h 16mAmerican Airlines
Deal found 12/13$419
This Delta deal was found by Cheapflights users on 12/15. 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 12/155:12 pmSTL - DAY
1 stop4h 59mDelta
Tue 12/162:55 pmDAY - STL
1 stop4h 38mDelta
Deal found 12/15$777
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/156:42 pmSTL - DAY
1 stop3h 48mUnited Airlines
Tue 12/162:10 pmDAY - STL
2 stops10h 32mUnited Airlines
Deal found 12/15$942

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$221
(Delta)

One-way from

$115
(American Airlines)

Popular in

November

Cheapest in

August

Average price

$323
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. 6% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 15, 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

Tue 1/13

12:00 pm-5:58 pm

1 stop4h 58m

Dayton

Tue 1/20

6:47 pm-11:37 pm

1 stop5h 50m

$221

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Tue 1/13

11:05 am-7:55 pm

2 stops7h 50m

Dayton

Tue 1/20

7:10 pm-11:12 pm

1 stop5h 02m

$261

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Wed 2/4

6:40 pm-11:44 pm

1 stop4h 04m

Dayton

Sat 2/7

2:52 pm-7:27 pm

1 stop5h 35m

$309

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Mon 1/12

3:45 pm-11:16 pm

1 stop6h 31m

Dayton

Thu 1/15

6:47 pm-11:39 pm

1 stop5h 52m

$350

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Mon 12/29

6:35 pm-11:44 pm

1 stop4h 09m

Dayton

Fri 1/2

9:00 am-2:26 pm

1 stop6h 26m

$393

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Mon 1/12

12:44 pm-11:44 pm

2 stops10h 00m

Dayton

Thu 1/15

9:05 am-2:30 pm

1 stop6h 25m

$701

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Thu 12/25

9:08 am-4:43 pm

1 stop6h 35m

$115

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Wed 12/31

6:30 am-1:18 pm

1 stop5h 48m

$145

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 1/10

5:00 pm-11:16 pm

1 stop5h 16m

$179

St. LouisDayton

STL - DAY

STLDAY

Lambert-St Louis

Sat 1/10

7:43 pm-3:29 pm

3 stops42h 46m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 14 results
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 December.
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 St. Louis-Dayton flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Dayton flight deals on Cheapflights vs. eDreams >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 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 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 $296). 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 December 15, 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 35% on your trip compared to booking a flight in the evening.

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 December 15, 2025.
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
9,092 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,052 reviews
United Airlines
7.4
Good
9,092 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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, American Airlines, and United Airlines can get you from St. Louis to Dayton in just under 4h 04m. Your travel time can differ by up to 3h 46m. 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 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, 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 $296). 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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$348FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$298FlexibilityNo cancel feeOn-time71%

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