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Cheap flights from Dayton to St. Louis from $187

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 8/8. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Dayton to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:06 pm - 6:27 pm
DAY
-
STL
4h 21m
1 stop
Delta Logo
10:31 am - 3:24 pm
STL
-
DAY
3h 53m
1 stop
$271Delta
Tue, Aug 18 - Sat, Aug 22
Delta Logo
6:30 pm - 11:58 pm
DAY
-
STL
6h 28m
1 stop
Delta Logo
7:00 am - 2:17 pm
STL
-
DAY
6h 17m
1 stop
$280Delta
Fri, Aug 14 - Tue, Aug 18
Delta Logo
6:38 pm - 11:53 pm
DAY
-
STL
6h 15m
1 stop
Delta Logo
7:08 am - 3:04 pm
STL
-
DAY
6h 56m
1 stop
$289Delta
Wed, Jul 22 - Wed, Jul 29
Delta Logo
11:23 am - 2:30 pm
DAY
-
STL
4h 07m
1 stop
Delta Logo
9:24 am - 3:04 pm
STL
-
DAY
4h 40m
1 stop
$295Delta
Sat, Jul 4 - Tue, Jul 7
Delta Logo
6:38 pm - 10:15 pm
DAY
-
STL
4h 37m
1 stop
Delta Logo
10:51 am - 5:50 pm
STL
-
DAY
5h 59m
1 stop
$304Delta
Fri, Jul 17 - Tue, Jul 21
Delta Logo
6:00 am - 9:20 am
DAY
-
STL
4h 20m
1 stop
Delta Logo
7:00 am - 2:17 pm
STL
-
DAY
6h 17m
1 stop
$305Delta
Sat, Aug 15 - Wed, Aug 19
Delta Logo
6:30 pm - 11:58 pm
DAY
-
STL
6h 28m
1 stop
Delta Logo
9:15 am - 2:17 pm
STL
-
DAY
4h 02m
1 stop
$314Delta
Fri, Aug 14 - Sun, Aug 23
United Airlines Logo
5:40 am - 10:34 am
DAY
-
STL
5h 54m
1 stop
United Airlines Logo
5:59 pm - 11:49 pm
STL
-
DAY
4h 50m
1 stop
$319United Airlines
Thu, Jul 9 - Mon, Jul 13
American Airlines Logo
8:49 am - 12:41 pm
DAY
-
STL
4h 52m
1 stop
American Airlines Logo
5:58 pm - 10:52 pm
STL
-
DAY
3h 54m
1 stop
$324American Airlines
Mon, Jul 6 - Mon, Jul 20
Delta Logo
6:38 pm - 10:15 pm
DAY
-
STL
4h 37m
1 stop
Delta Logo
7:08 am - 3:04 pm
STL
-
DAY
6h 56m
1 stop
$338Delta
Fri, Jul 17 - Sun, Jul 19

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American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets
American Airlines
Jul 10
DAY8:49 amDayton
6h 03m
1 stop
STL1:52 pmLambert-St Louis
Jul 14
STL6:55 amLambert-St Louis
4h 04m
1 stop
DAY11:59 amDayton
$319
American Airlines
Jul 6
DAY8:49 amDayton
4h 52m
1 stop
STL12:41 pmLambert-St Louis
Jul 20
STL5:58 pmLambert-St Louis
3h 54m
1 stop
DAY10:52 pmDayton
$324
American Airlines
Jul 10
DAY8:49 amDayton
6h 03m
1 stop
STL1:52 pmLambert-St Louis
Jul 13
STL5:58 pmLambert-St Louis
3h 54m
1 stop
DAY10:52 pmDayton
$553

Delta flights from Dayton to St. Louis

Our best Delta deals on Dayton to St. Louis flight tickets
Delta
Aug 18
DAY3:06 pmDayton
4h 21m
1 stop
STL6:27 pmLambert-St Louis
Aug 22
STL10:31 amLambert-St Louis
3h 53m
1 stop
DAY3:24 pmDayton
$271
Delta
Aug 14
DAY6:30 pmDayton
6h 28m
1 stop
STL11:58 pmLambert-St Louis
Aug 19
STL7:00 amLambert-St Louis
6h 17m
1 stop
DAY2:17 pmDayton
$280
Delta
Jul 22
DAY6:38 pmDayton
6h 15m
1 stop
STL11:53 pmLambert-St Louis
Jul 29
STL7:08 amLambert-St Louis
6h 56m
1 stop
DAY3:04 pmDayton
$289

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 June 29, 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
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 8/18

3:06 pm-6:27 pm

1 stop4h 21m

Lambert-St Louis

Sat 8/22

10:31 am-3:24 pm

1 stop3h 53m

$271

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 8/14

6:30 pm-11:58 pm

1 stop6h 28m

Lambert-St Louis

Tue 8/18

7:00 am-2:17 pm

1 stop6h 17m

$280

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 7/22

6:38 pm-11:53 pm

1 stop6h 15m

Lambert-St Louis

Wed 7/29

7:08 am-3:04 pm

1 stop6h 56m

$289

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 7/4

11:23 am-2:30 pm

1 stop4h 07m

Lambert-St Louis

Tue 7/7

9:24 am-3:04 pm

1 stop4h 40m

$295

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 7/17

6:38 pm-10:15 pm

1 stop4h 37m

Lambert-St Louis

Tue 7/21

10:51 am-5:50 pm

1 stop5h 59m

$304

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 8/15

6:00 am-9:20 am

1 stop4h 20m

Lambert-St Louis

Wed 8/19

7:00 am-2:17 pm

1 stop6h 17m

$305

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 8/14

6:30 pm-11:58 pm

1 stop6h 28m

Lambert-St Louis

Sun 8/23

9:15 am-2:17 pm

1 stop4h 02m

$314

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 7/9

5:40 am-10:34 am

1 stop5h 54m

Lambert-St Louis

Mon 7/13

5:59 pm-11:49 pm

1 stop4h 50m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 7/6

8:49 am-12:41 pm

1 stop4h 52m

Lambert-St Louis

Mon 7/20

5:58 pm-10:52 pm

1 stop3h 54m

$324

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 7/17

6:38 pm-10:15 pm

1 stop4h 37m

Lambert-St Louis

Sun 7/19

7:08 am-3:04 pm

1 stop6h 56m

$338

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 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 $0. 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 11m

Direct flights

None
The fastest flight from Dayton to St. Louis takes 4h 11m
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 4h 11m.

  • 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
9,894 reviews
Search United Airlines flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,768 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
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
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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