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$160+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — STL
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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 12/315:21 pmDAY - STL
1 stop6h 22mUnited Airlines
Sun 1/46:35 pmSTL - DAY
1 stop4h 09mUnited Airlines
Deal found 12/16$304
This United Airlines deal was found by Cheapflights users on 12/17. 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 12/222:51 pmDAY - STL
1 stop5h 31mUnited Airlines
Mon 12/296:35 pmSTL - DAY
1 stop4h 09mUnited Airlines
Deal found 12/17$309
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/201:11 pmDAY - STL
1 stop4h 35mAmerican Airlines
Mon 12/225:16 pmSTL - DAY
1 stop5h 23mAmerican Airlines
Deal found 12/16$319
This Delta deal was found by Cheapflights users on 12/16. 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 12/316:05 amDAY - STL
1 stop7h 16mDelta
Sun 1/47:02 pmSTL - DAY
1 stop3h 57mDelta
Deal found 12/16$354
This Delta deal was found by Cheapflights users on 12/16. 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 12/196:34 pmDAY - STL
1 stop4h 44mDelta
Sun 12/211:22 pmSTL - DAY
1 stop4h 39mDelta
Deal found 12/16$399
This American Airlines deal was found by Cheapflights users on 12/17. 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 12/226:01 amDAY - STL
2 stops8h 22mAmerican Airlines
Mon 12/294:53 pmSTL - DAY
1 stop5h 57mAmerican Airlines
Deal found 12/17$500
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/318:21 amDAY - STL
2 stops9h 02mAmerican Airlines
Sun 1/45:16 amSTL - DAY
1 stop5h 19mAmerican Airlines
Deal found 12/16$553
This American Airlines deal was found by Cheapflights users on 12/16. 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 12/196:00 amDAY - STL
1 stop3h 35mAmerican Airlines
Sun 12/211:54 pmSTL - DAY
2 stops7h 07mAmerican Airlines
Deal found 12/16$695

Find 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$259
(United Airlines)

One-way from

$160
(United Airlines)

Popular in

April

Cheapest in

July

Average price

$297
Provider with most accurate pricing for Dayton-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-Lambert-St Louis flights.
Search Deals
From Dayton to Lambert-St Louis
Search Deals
One-way flight from Dayton to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 30% potential increase in price ($150 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 10% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 18, 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 12/31

5:21 pm-10:43 pm

1 stop6h 22m

Lambert-St Louis

Sun 1/4

6:35 pm-11:44 pm

1 stop4h 09m

$304

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 1/31

10:50 am-2:28 pm

1 stop4h 38m

Lambert-St Louis

Tue 2/3

12:44 pm-7:37 pm

1 stop5h 53m

$309

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 12/31

6:05 am-12:21 pm

1 stop7h 16m

Lambert-St Louis

Sun 1/4

7:02 pm-11:59 pm

1 stop3h 57m

$354

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 1/10

7:00 am-11:02 am

1 stop5h 02m

Lambert-St Louis

Tue 1/13

6:40 pm-11:44 pm

1 stop4h 04m

$358

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 6/11

11:39 am-2:18 pm

1 stop3h 39m

Lambert-St Louis

Sun 6/14

5:18 pm-11:29 pm

1 stop5h 11m

$408

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 12/31

8:21 am-4:23 pm

2 stops9h 02m

Lambert-St Louis

Sun 1/4

5:16 am-11:35 am

1 stop5h 19m

$553

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 1/15

10:24 am-2:30 pm

1 stop5h 06m

$160

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 1/8

11:37 am-5:50 pm

1 stop7h 13m

$196

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/21

5:49 pm-9:05 pm

1 stop4h 16m

$209

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 1/15

4:26 pm-10:34 pm

3 stops31h 08m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 13 results
1
2

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 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 Dayton-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dayton-St. Louis flight deals on Cheapflights vs. eDreams >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 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 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 November is currently the most expensive (average of $249). 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 December 18, 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 December 18, 2025.
Peruse reviews from past customers who have flown with 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.
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
American Airlines
7.2
Good
11,054 reviews
United Airlines
7.4
Good
9,091 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

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 $304, United Airlines can have you in St. Louis from Dayton in 6h 22m. 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), and United Airlines ($228) offers the cheapest pricing from Dayton to St. Louis. These flights start at 34% lower than the current average price 3 months from now.

  • 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 November is currently the most expensive (average of $249). 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
Swansea
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 2 airlines flying from Dayton to St. Louis

Discover the top 2 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$338FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$324FlexibilityNo cancel feeOn-time71%

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