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Cheap flights from Dayton to St. Louis from $224

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 3/29. 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.
United Airlines Logo
10:50 am - 4:23 pm
DAY
-
STL
6h 33m
1 stop
United Airlines Logo
6:25 am - 1:19 pm
STL
-
DAY
5h 54m
1 stop
$249United Airlines
Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
5:49 pm - 9:05 pm
DAY
-
STL
4h 16m
1 stop
United Airlines Logo
8:17 am - 1:25 pm
STL
-
DAY
4h 08m
1 stop
$259United Airlines
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
5:47 am - 1:50 pm
DAY
-
STL
9h 03m
2 stops
American Airlines Logo
5:12 am - 11:39 am
STL
-
DAY
5h 27m
1 stop
$264American Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
5:55 am - 8:41 am
DAY
-
STL
3h 46m
1 stop
United Airlines Logo
5:41 pm - 10:23 pm
STL
-
DAY
3h 42m
1 stop
$266United Airlines
Fri, May 29 - Mon, Jun 1
American Airlines Logo
5:35 pm - 9:11 pm
DAY
-
STL
4h 36m
1 stop
American Airlines Logo
6:00 am - 12:11 pm
STL
-
DAY
5h 11m
1 stop
$274American Airlines
Sat, Mar 14 - Sun, Mar 22
United Airlines Logo
6:05 pm - 9:11 pm
DAY
-
STL
4h 06m
1 stop
United Airlines Logo
5:29 pm - 10:23 pm
STL
-
DAY
3h 54m
1 stop
$282United Airlines
Fri, Aug 7 - Sun, Aug 9
American Airlines Logo
5:47 am - 12:44 pm
DAY
-
STL
7h 57m
1 stop
American Airlines Logo
6:00 am - 12:11 pm
STL
-
DAY
5h 11m
1 stop
$299American Airlines
Fri, Mar 13 - Sun, Mar 22
United Airlines Logo
5:49 pm - 9:05 pm
DAY
-
STL
4h 16m
1 stop
United Airlines Logo
7:41 am - 1:25 pm
STL
-
DAY
4h 44m
1 stop
$314United Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
5:49 pm - 9:05 pm
DAY
-
STL
4h 16m
1 stop
United Airlines Logo
6:25 am - 1:25 pm
STL
-
DAY
6h 00m
1 stop
$319United Airlines
Sat, Feb 28 - Wed, Mar 4
American Airlines Logo
6:30 pm - 11:56 pm
DAY
-
STL
6h 26m
1 stop
American Airlines Logo
7:05 am - 12:18 pm
STL
-
DAY
4h 13m
1 stop
$323American Airlines
Wed, May 13 - Sun, May 17

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
Mar 18
DAY10:50 amDayton
6h 33m
1 stop
STL4:23 pmLambert-St Louis
Mar 21
STL6:25 amLambert-St Louis
5h 54m
1 stop
DAY1:19 pmDayton
$249
United Airlines
May 29
DAY5:55 amDayton
3h 46m
1 stop
STL8:41 amLambert-St Louis
Jun 1
STL5:41 pmLambert-St Louis
3h 42m
1 stop
DAY10:23 pmDayton
$266
United Airlines
Feb 28
DAY5:49 pmDayton
4h 16m
1 stop
STL9:05 pmLambert-St Louis
Mar 4
STL7:41 amLambert-St Louis
4h 44m
1 stop
DAY1:25 pmDayton
$314

American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets
American Airlines
Feb 25
DAY8:32 amDayton
6h 11m
1 stop
STL1:43 pmLambert-St Louis
Feb 28
STL8:00 amLambert-St Louis
8h 26m
2 stops
DAY5:26 pmDayton
$264
American Airlines
Mar 14
DAY5:35 pmDayton
4h 36m
1 stop
STL9:11 pmLambert-St Louis
Mar 22
STL6:00 amLambert-St Louis
5h 11m
1 stop
DAY12:11 pmDayton
$274
American Airlines
Mar 13
DAY5:47 amDayton
7h 57m
1 stop
STL12:44 pmLambert-St Louis
Mar 22
STL6:00 amLambert-St Louis
5h 11m
1 stop
DAY12:11 pmDayton
$299

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 February 16, 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 3/18

10:50 am-4:23 pm

1 stop6h 33m

Lambert-St Louis

Sat 3/21

6:25 am-1:19 pm

1 stop5h 54m

$249

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/28

5:49 pm-9:05 pm

1 stop4h 16m

Lambert-St Louis

Wed 3/4

8:17 am-1:25 pm

1 stop4h 08m

$259

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/28

5:47 am-1:50 pm

2 stops9h 03m

Lambert-St Louis

Wed 3/4

5:12 am-11:39 am

1 stop5h 27m

$264

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 5/29

5:55 am-8:41 am

1 stop3h 46m

Lambert-St Louis

Mon 6/1

5:41 pm-10:23 pm

1 stop3h 42m

$266

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 3/14

5:35 pm-9:11 pm

1 stop4h 36m

Lambert-St Louis

Sun 3/22

6:00 am-12:11 pm

1 stop5h 11m

$274

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 8/7

6:05 pm-9:11 pm

1 stop4h 06m

Lambert-St Louis

Sun 8/9

5:29 pm-10:23 pm

1 stop3h 54m

$282

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 3/13

5:47 am-12:44 pm

1 stop7h 57m

Lambert-St Louis

Sun 3/22

6:00 am-12:11 pm

1 stop5h 11m

$299

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/28

5:49 pm-9:05 pm

1 stop4h 16m

Lambert-St Louis

Wed 3/4

7:41 am-1:25 pm

1 stop4h 44m

$314

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 2/28

5:49 pm-9:05 pm

1 stop4h 16m

Lambert-St Louis

Wed 3/4

6:25 am-1:25 pm

1 stop6h 00m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 5/13

6:30 pm-11:56 pm

1 stop6h 26m

Lambert-St Louis

Sun 5/17

7:05 am-12:18 pm

1 stop4h 13m

$323

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
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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 37m

Direct flights

None
The fastest flight from Dayton to St. Louis takes 3h 37m
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 3h 37m.

  • 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
8,204 reviews
Search Delta flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,299 reviews
Search United Airlines flights
American AirlinesPriceFrom $233Free CancellationRating
7.2
11,294 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
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

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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