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Cheap flights from Dayton to St. Louis from $197

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dayton to St. Louis departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Dayton to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:44 pm - 11:35 pm
DAY
-
STL
5h 51m
1 stop
Delta Logo
9:15 am - 2:29 pm
STL
-
DAY
4h 14m
1 stop
$271Delta
Wed, May 6 - Wed, May 13
American Airlines Logo
7:29 am - 1:22 pm
DAY
-
STL
6h 53m
1 stop
American Airlines Logo
5:21 pm - 10:16 pm
STL
-
DAY
3h 55m
1 stop
$290American Airlines
Wed, May 6 - Wed, May 13
Delta Logo
6:00 am - 10:34 am
DAY
-
STL
5h 34m
1 stop
Delta Logo
9:15 am - 2:29 pm
STL
-
DAY
4h 14m
1 stop
$300Delta
Wed, May 6 - Wed, May 13
American Airlines Logo
12:35 pm - 4:00 pm
DAY
-
STL
4h 25m
1 stop
American Airlines Logo
5:51 am - 12:15 pm
STL
-
DAY
5h 24m
1 stop
$309American Airlines
Wed, Apr 29 - Sun, May 3
Delta Logo
6:00 am - 9:44 am
DAY
-
STL
4h 44m
1 stop
Delta Logo
7:05 am - 2:29 pm
STL
-
DAY
6h 24m
1 stop
$310Delta
Fri, May 29 - Mon, Jun 1
American Airlines Logo
6:39 pm - 10:17 pm
DAY
-
STL
4h 38m
1 stop
American Airlines Logo
1:29 pm - 9:38 pm
STL
-
DAY
7h 09m
1 stop
$319American Airlines
Thu, Apr 23 - Mon, Apr 27
United Airlines Logo
9:30 pm - 12:24 am
DAY
-
STL
3h 54m
1 stop
United Airlines Logo
8:30 pm - 1:21 am
STL
-
DAY
3h 51m
1 stop
$329United Airlines
Fri, May 1 - Sun, May 3
Delta Logo
6:44 pm - 11:36 pm
DAY
-
STL
5h 52m
1 stop
Delta Logo
1:02 pm - 5:59 pm
STL
-
DAY
3h 57m
1 stop
$339Delta
Fri, Apr 24 - Tue, Apr 28
United Airlines Logo
6:00 pm - 9:22 pm
DAY
-
STL
4h 22m
1 stop
United Airlines Logo
8:00 am - 1:08 pm
STL
-
DAY
4h 08m
1 stop
$341United Airlines
Wed, Aug 26 - Sat, Aug 29
United Airlines Logo
6:00 pm - 9:52 pm
DAY
-
STL
4h 52m
1 stop
United Airlines Logo
7:45 am - 1:26 pm
STL
-
DAY
4h 41m
1 stop
$389United Airlines
Tue, Apr 21 - Sat, Apr 25

Delta flights from Dayton to St. Louis

Our best Delta deals on Dayton to St. Louis flight tickets
Delta
May 6
DAY6:44 pmDayton
5h 51m
1 stop
STL11:35 pmLambert-St Louis
May 13
STL9:15 amLambert-St Louis
4h 14m
1 stop
DAY2:29 pmDayton
$271
Delta
May 6
DAY6:00 amDayton
5h 34m
1 stop
STL10:34 amLambert-St Louis
May 13
STL9:15 amLambert-St Louis
4h 14m
1 stop
DAY2:29 pmDayton
$300
Delta
May 29
DAY6:00 amDayton
4h 44m
1 stop
STL9:44 amLambert-St Louis
Jun 1
STL7:05 amLambert-St Louis
6h 24m
1 stop
DAY2:29 pmDayton
$310

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
May 1
DAY9:30 pmDayton
3h 54m
1 stop
STL12:24 amLambert-St Louis
May 3
STL8:30 pmLambert-St Louis
3h 51m
1 stop
DAY1:21 amDayton
$329
United Airlines
Jul 23
DAY6:15 pmDayton
4h 11m
1 stop
STL9:26 pmLambert-St Louis
Jul 26
STL6:00 amLambert-St Louis
4h 04m
1 stop
DAY11:04 amDayton
$333
United Airlines
Apr 12
DAY8:10 pmDayton
4h 01m
1 stop
STL11:11 pmLambert-St Louis
Apr 19
STL6:30 amLambert-St Louis
5h 56m
1 stop
DAY1:26 pmDayton
$349

momondo 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, momondo users made 832,500 searches. Data last updated April 10, 2026.
Use the filters below to find and compare flights from Dayton to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 5/6

6:44 pm-11:35 pm

1 stop5h 51m

Lambert-St Louis

Wed 5/13

9:15 am-2:29 pm

1 stop4h 14m

$271

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 5/6

7:29 am-1:22 pm

1 stop6h 53m

Lambert-St Louis

Wed 5/13

5:21 pm-10:16 pm

1 stop3h 55m

$290

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 5/6

6:00 am-10:34 am

1 stop5h 34m

Lambert-St Louis

Wed 5/13

9:15 am-2:29 pm

1 stop4h 14m

$300

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 4/29

12:35 pm-4:00 pm

1 stop4h 25m

Lambert-St Louis

Sun 5/3

5:51 am-12:15 pm

1 stop5h 24m

$309

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 5/29

6:00 am-9:44 am

1 stop4h 44m

Lambert-St Louis

Mon 6/1

7:05 am-2:29 pm

1 stop6h 24m

$310

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/23

6:39 pm-10:17 pm

1 stop4h 38m

Lambert-St Louis

Mon 4/27

1:29 pm-9:38 pm

1 stop7h 09m

$319
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 5/1

9:30 pm-12:24 am

1 stop3h 54m

Lambert-St Louis

Sun 5/3

8:30 pm-1:21 am

1 stop3h 51m

$329

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 4/24

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Tue 4/28

1:02 pm-5:59 pm

1 stop3h 57m

$339

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 8/26

6:00 pm-9:22 pm

1 stop4h 22m

Lambert-St Louis

Sat 8/29

8:00 am-1:08 pm

1 stop4h 08m

$341

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 4/21

6:00 pm-9:52 pm

1 stop4h 52m

Lambert-St Louis

Sat 4/25

7:45 am-1:26 pm

1 stop4h 41m

$389

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Dayton to St. Louis

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Dayton and St. Louis?

What is the cheapest month to fly to St. Louis?

In general, July is the cheapest month to fly from Dayton to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $238. The month of November is another great option to travel to St. Louis, with average flight prices from Dayton averaging around $258.

When to book flights from Dayton to St. Louis

Are you open to changing your travel dates? Check out the ideal times to fly from Dayton to St. Louis according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dayton to St. Louis (DAY to STL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dayton to St. Louis

Fastest flight time

3h 46m

Direct flights

None
The fastest flight from Dayton to St. Louis takes 3h 46m
There are no direct flights from Dayton to St. Louis. There are no popular flight routes from Dayton to St. Louis.
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Frequently asked questions about flying from Dayton to St. Louis

  • How far is Dayton to Lambert-St Louis by plane?

    A flight from Dayton to Lambert-St Louis will travel around 330.7 mi. In terms of flight time, this usually takes a little over 3h 46m.

  • When did momondo last update prices for flights from Dayton Airport to Lambert-St Louis Airport?

    Prices for flights from Dayton Airport to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Dayton Airport to Lambert-St Louis Airport?

  • How old do you have to be to fly from Dayton Airport to Lambert-St Louis Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dayton Airport to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Dayton to St. Louis?

Best airlines flying from Dayton to St. Louis

Compare and see reviews for airlines that fly from Dayton to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,562 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,564 reviews
Search American Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Eureka
Edwardsville
Litchfield
Shrewsbury
Grafton

Why use momondo?

Why should I use momondo to find a flight deal from Dayton to St. Louis?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dayton to St. Louis for you.

Can I find flights from Dayton to St. Louis with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to St. Louis from Dayton with this policy.

How can momondo help me find flights from Dayton to St. Louis?

momondo provides multiple filters to help you find the best flight to St. Louis from Dayton. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Dayton to St. Louis right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to St. Louis from Dayton. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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