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Cheap flights from Dayton to St. Louis from $229

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 3/17. 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
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 - 11:36 pm
DAY
-
STL
5h 52m
1 stop
Delta Logo
4:41 pm - 12:17 am
STL
-
DAY
6h 36m
1 stop
$249Delta
Wed, Apr 22 - Mon, Apr 27
Delta Logo
6:34 pm - 11:58 pm
DAY
-
STL
6h 24m
1 stop
Delta Logo
7:03 am - 1:49 pm
STL
-
DAY
5h 46m
1 stop
$274Delta
Mon, Apr 6 - Sat, Apr 11
Delta Logo
6:34 pm - 11:58 pm
DAY
-
STL
6h 24m
1 stop
Delta Logo
7:03 am - 1:49 pm
STL
-
DAY
5h 46m
1 stop
$284Delta
Thu, Apr 9 - Sat, Apr 11
Delta Logo
6:34 pm - 11:58 pm
DAY
-
STL
6h 24m
1 stop
Delta Logo
6:50 pm - 12:17 am
STL
-
DAY
4h 27m
1 stop
$299Delta
Mon, Apr 6 - Tue, Apr 14
United Airlines Logo
8:10 pm - 11:11 pm
DAY
-
STL
4h 01m
1 stop
United Airlines Logo
8:21 am - 1:26 pm
STL
-
DAY
4h 05m
1 stop
$309United Airlines
Fri, Apr 10 - Sat, Apr 11
American Airlines Logo
12:35 pm - 4:41 pm
DAY
-
STL
5h 06m
1 stop
American Airlines Logo
7:05 am - 12:15 pm
STL
-
DAY
4h 10m
1 stop
$319American Airlines
Thu, Apr 9 - Sun, Apr 12
Delta Logo
6:34 pm - 11:58 pm
DAY
-
STL
6h 24m
1 stop
Delta Logo
1:02 pm - 5:59 pm
STL
-
DAY
3h 57m
1 stop
$328Delta
Wed, Apr 8 - Mon, Apr 13
Delta Logo
6:00 am - 11:25 pm
DAY
-
STL
18h 25m
2 stops
Delta Logo
7:03 am - 1:49 pm
STL
-
DAY
5h 46m
1 stop
$334Delta
Thu, Apr 9 - Sat, Apr 11
American Airlines Logo
6:39 pm - 11:46 pm
DAY
-
STL
6h 07m
1 stop
American Airlines Logo
5:51 am - 12:15 pm
STL
-
DAY
5h 24m
1 stop
$344American Airlines
Fri, Apr 10 - Sun, Apr 12
Delta Logo
6:34 pm - 11:58 pm
DAY
-
STL
6h 24m
1 stop
Delta Logo
1:02 pm - 5:59 pm
STL
-
DAY
3h 57m
1 stop
$353Delta
Mon, Apr 6 - Mon, Apr 13

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
Apr 22
DAY8:10 pmDayton
4h 01m
1 stop
STL11:11 pmLambert-St Louis
Apr 26
STL6:30 amLambert-St Louis
3h 27m
1 stop
DAY10:57 amDayton
$249
United Airlines
Apr 10
DAY8:10 pmDayton
4h 01m
1 stop
STL11:11 pmLambert-St Louis
Apr 11
STL8:21 amLambert-St Louis
4h 05m
1 stop
DAY1:26 pmDayton
$309
United Airlines
Apr 6
DAY8:10 pmDayton
4h 01m
1 stop
STL11:11 pmLambert-St Louis
Apr 15
STL7:45 amLambert-St Louis
4h 41m
1 stop
DAY1:26 pmDayton
$373

American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets
American Airlines
Mar 5
DAY8:32 amDayton
6h 11m
1 stop
STL1:43 pmLambert-St Louis
Mar 7
STL1:36 pmLambert-St Louis
7h 24m
1 stop
DAY10:00 pmDayton
$319
American Airlines
Mar 5
DAY12:09 pmDayton
8h 20m
1 stop
STL7:29 pmLambert-St Louis
Mar 7
STL8:00 amLambert-St Louis
8h 26m
2 stops
DAY5:26 pmDayton
$324
American Airlines
Apr 10
DAY6:39 pmDayton
6h 07m
1 stop
STL11:46 pmLambert-St Louis
Apr 12
STL5:51 amLambert-St Louis
5h 24m
1 stop
DAY12:15 pmDayton
$344

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 March 2, 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

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 4/22

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Mon 4/27

4:41 pm-12:17 am

1 stop6h 36m

$249

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 4/6

6:34 pm-11:58 pm

1 stop6h 24m

Lambert-St Louis

Sat 4/11

7:03 am-1:49 pm

1 stop5h 46m

$274

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/9

6:34 pm-11:58 pm

1 stop6h 24m

Lambert-St Louis

Sat 4/11

7:03 am-1:49 pm

1 stop5h 46m

$284

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 4/6

6:34 pm-11:58 pm

1 stop6h 24m

Lambert-St Louis

Tue 4/14

6:50 pm-12:17 am

1 stop4h 27m

$299

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 4/10

8:10 pm-11:11 pm

1 stop4h 01m

Lambert-St Louis

Sat 4/11

8:21 am-1:26 pm

1 stop4h 05m

$309

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/9

12:35 pm-4:41 pm

1 stop5h 06m

Lambert-St Louis

Sun 4/12

7:05 am-12:15 pm

1 stop4h 10m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 4/8

6:34 pm-11:58 pm

1 stop6h 24m

Lambert-St Louis

Mon 4/13

1:02 pm-5:59 pm

1 stop3h 57m

$328

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/9

6:00 am-11:25 pm

2 stops18h 25m

Lambert-St Louis

Sat 4/11

7:03 am-1:49 pm

1 stop5h 46m

$334

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 4/10

6:39 pm-11:46 pm

1 stop6h 07m

Lambert-St Louis

Sun 4/12

5:51 am-12:15 pm

1 stop5h 24m

$344

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 4/6

6:34 pm-11:58 pm

1 stop6h 24m

Lambert-St Louis

Mon 4/13

1:02 pm-5:59 pm

1 stop3h 57m

$353

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

4h 01m

Direct flights

None
The fastest flight from Dayton to St. Louis takes 4h 01m
There are no direct flights from Dayton to St. Louis. There are no popular flight routes from Dayton to St. Louis.
Search flight deals

  • 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 4h 01m.

  • 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
DeltaPriceFrom $228Free CancellationRating
7.9
8,237 reviews
Search Delta flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,375 reviews
Search United Airlines flights
American AirlinesPriceFrom $233Free CancellationRating
7.1
11,369 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
Florissant
Maryland Heights
O'Fallon
St. Peters
Wentzville
Collinsville
Alton
Fenton
Farmington
Edwardsville
Festus
Clayton
Eureka
Litchfield
Glencoe
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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