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Cheap flights from Dayton to St. Louis from $188

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 4/28. 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.
American Airlines Logo
6:48 pm - 10:59 pm
DAY
-
STL
5h 11m
1 stop
American Airlines Logo
7:05 am - 12:15 pm
STL
-
DAY
4h 10m
1 stop
$269American Airlines
Tue, Apr 7 - Tue, Apr 14
American Airlines Logo
8:32 am - 1:43 pm
DAY
-
STL
6h 11m
1 stop
American Airlines Logo
5:51 am - 12:15 pm
STL
-
DAY
5h 24m
1 stop
$294American Airlines
Sun, Apr 5 - Sun, Apr 12
American Airlines Logo
8:27 am - 2:03 pm
DAY
-
STL
6h 36m
1 stop
American Airlines Logo
7:05 am - 12:15 pm
STL
-
DAY
4h 10m
1 stop
$304American Airlines
Wed, Apr 8 - Sun, Apr 12
United Airlines Logo
7:15 am - 12:22 pm
DAY
-
STL
6h 07m
1 stop
United Airlines Logo
6:30 am - 10:57 am
STL
-
DAY
3h 27m
1 stop
$329United Airlines
Sat, Apr 11 - Wed, Apr 15
United Airlines Logo
6:00 pm - 9:52 pm
DAY
-
STL
4h 52m
1 stop
United Airlines Logo
6:30 am - 10:57 am
STL
-
DAY
3h 27m
1 stop
$349United Airlines
Sat, Apr 11 - Wed, Apr 15
United Airlines Logo
6:05 pm - 9:16 pm
DAY
-
STL
4h 11m
1 stop
United Airlines Logo
6:00 am - 1:42 pm
STL
-
DAY
6h 42m
1 stop
$358United Airlines
Tue, May 26 - Sat, May 30
United Airlines Logo
2:07 pm - 6:00 pm
DAY
-
STL
4h 53m
1 stop
United Airlines Logo
7:00 pm - 11:43 pm
STL
-
DAY
3h 43m
1 stop
$359United Airlines
Tue, Mar 24 - Sat, Mar 28
American Airlines Logo
12:35 pm - 4:00 pm
DAY
-
STL
4h 25m
1 stop
American Airlines Logo
12:27 pm - 6:09 pm
STL
-
DAY
4h 42m
1 stop
$375American Airlines
Tue, Apr 28 - Wed, Apr 29
United Airlines Logo
8:10 pm - 11:11 pm
DAY
-
STL
4h 01m
1 stop
United Airlines Logo
9:10 am - 5:03 pm
STL
-
DAY
6h 53m
1 stop
$381United Airlines
Sun, Apr 19 - Tue, Apr 21
United Airlines Logo
8:10 pm - 11:11 pm
DAY
-
STL
4h 01m
1 stop
United Airlines Logo
7:45 am - 1:26 pm
STL
-
DAY
4h 41m
1 stop
$389United Airlines
Thu, Apr 9 - Fri, Apr 10

Delta flights from Dayton to St. Louis

Our best Delta deals on Dayton to St. Louis flight tickets
Delta
Mar 14
DAY6:34 pmDayton
6h 24m
1 stop
STL11:58 pmLambert-St Louis
Mar 17
STL10:12 amLambert-St Louis
6h 37m
1 stop
DAY5:49 pmDayton
$319
Delta
Mar 14
DAY6:34 pmDayton
6h 24m
1 stop
STL11:58 pmLambert-St Louis
Mar 17
STL10:12 amLambert-St Louis
6h 37m
1 stop
DAY5:49 pmDayton
$329
Delta
Apr 9
DAY6:34 pmDayton
6h 24m
1 stop
STL11:58 pmLambert-St Louis
Apr 10
STL12:04 pmLambert-St Louis
4h 45m
1 stop
DAY5:49 pmDayton
$585

American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets
American Airlines
Apr 7
DAY6:48 pmDayton
5h 11m
1 stop
STL10:59 pmLambert-St Louis
Apr 14
STL7:05 amLambert-St Louis
4h 10m
1 stop
DAY12:15 pmDayton
$269
American Airlines
Apr 5
DAY8:32 amDayton
6h 11m
1 stop
STL1:43 pmLambert-St Louis
Apr 12
STL5:51 amLambert-St Louis
5h 24m
1 stop
DAY12:15 pmDayton
$294
American Airlines
Mar 17
DAY5:47 amDayton
7h 57m
1 stop
STL12:44 pmLambert-St Louis
Mar 24
STL5:12 amLambert-St Louis
5h 27m
1 stop
DAY11:39 amDayton
$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 March 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

Tue 4/7

6:48 pm-10:59 pm

1 stop5h 11m

Lambert-St Louis

Tue 4/14

7:05 am-12:15 pm

1 stop4h 10m

$269

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 4/5

8:32 am-1:43 pm

1 stop6h 11m

Lambert-St Louis

Sun 4/12

5:51 am-12:15 pm

1 stop5h 24m

$294

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 4/8

8:27 am-2:03 pm

1 stop6h 36m

Lambert-St Louis

Sun 4/12

7:05 am-12:15 pm

1 stop4h 10m

$304

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 4/11

7:15 am-12:22 pm

1 stop6h 07m

Lambert-St Louis

Wed 4/15

6:30 am-10:57 am

1 stop3h 27m

$329
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 4/11

6:00 pm-9:52 pm

1 stop4h 52m

Lambert-St Louis

Wed 4/15

6:30 am-10:57 am

1 stop3h 27m

$349

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 5/26

6:05 pm-9:16 pm

1 stop4h 11m

Lambert-St Louis

Sat 5/30

6:00 am-1:42 pm

1 stop6h 42m

$358

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 3/24

2:07 pm-6:00 pm

1 stop4h 53m

Lambert-St Louis

Sat 3/28

7:00 pm-11:43 pm

1 stop3h 43m

$359

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 4/28

12:35 pm-4:00 pm

1 stop4h 25m

Lambert-St Louis

Wed 4/29

12:27 pm-6:09 pm

1 stop4h 42m

$375

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 4/19

8:10 pm-11:11 pm

1 stop4h 01m

Lambert-St Louis

Tue 4/21

9:10 am-5:03 pm

1 stop6h 53m

$381

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/9

8:10 pm-11:11 pm

1 stop4h 01m

Lambert-St Louis

Fri 4/10

7:45 am-1:26 pm

1 stop4h 41m

$389

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 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
8,276 reviews
Search Delta flights
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,409 reviews
Search United Airlines flights
American AirlinesPriceFrom $233Free CancellationRating
7.1
11,413 reviews
Search American Airlines flights

  • United Airlines Flights From Dayton to St. Louis

    The lowest priced United Airlines flight from Dayton to St. Louis from the last 72 hours was $228. Generally, United Airlines has 5 flights on this route every week with an average price of $338. United Airlines is rated 7.4/10 by our users.

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
Collinsville
St. Peters
Fenton
Alton
Wentzville
Farmington
Edwardsville
Festus
Clayton
Eureka
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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