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Cheap flights from Dayton to St. Louis from $244

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 8/11. 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.
American Airlines Logo
7:00 am - 12:54 pm
DAY
-
STL
6h 54m
1 stop
American Airlines Logo
6:00 am - 11:52 am
STL
-
DAY
4h 52m
1 stop
$280American Airlines
Thu, Aug 13 - Wed, Aug 19
American Airlines Logo
5:34 am - 10:20 am
DAY
-
STL
5h 46m
1 stop
American Airlines Logo
5:00 am - 11:49 am
STL
-
DAY
5h 49m
1 stop
$289American Airlines
Thu, Sep 10 - Sun, Sep 13
United Airlines Logo
7:15 am - 12:06 pm
DAY
-
STL
5h 51m
1 stop
United Airlines Logo
6:00 am - 11:03 am
STL
-
DAY
4h 03m
1 stop
$307United Airlines
Fri, Nov 13 - Sun, Nov 15
United Airlines Logo
11:32 am - 3:43 pm
DAY
-
STL
5h 11m
1 stop
United Airlines Logo
8:00 am - 1:43 pm
STL
-
DAY
4h 43m
1 stop
$310United Airlines
Thu, Sep 24 - Sun, Sep 27
United Airlines Logo
2:23 pm - 7:23 pm
DAY
-
STL
6h 00m
1 stop
United Airlines Logo
11:25 am - 5:30 pm
STL
-
DAY
5h 05m
1 stop
$319United Airlines
Sat, Aug 1 - Wed, Aug 5
United Airlines Logo
5:40 am - 10:34 am
DAY
-
STL
5h 54m
1 stop
United Airlines Logo
1:13 pm - 8:22 pm
STL
-
DAY
6h 09m
1 stop
$339United Airlines
Fri, Jul 31 - Tue, Aug 4
United Airlines Logo
6:00 pm - 9:13 pm
DAY
-
STL
4h 13m
1 stop
United Airlines Logo
7:04 pm - 11:44 pm
STL
-
DAY
3h 40m
1 stop
$346United Airlines
Sat, Dec 12 - Tue, Dec 15
United Airlines Logo
6:00 pm - 9:13 pm
DAY
-
STL
4h 13m
1 stop
United Airlines Logo
8:25 am - 2:01 pm
STL
-
DAY
4h 36m
1 stop
$351United Airlines
Sat, Dec 12 - Tue, Dec 15
American Airlines Logo
6:00 am - 10:51 am
DAY
-
STL
5h 51m
1 stop
American Airlines Logo
7:29 am - 12:05 pm
STL
-
DAY
3h 36m
1 stop
$359American Airlines
Thu, Oct 8 - Sun, Oct 11
United Airlines Logo
11:39 am - 3:46 pm
DAY
-
STL
5h 07m
1 stop
United Airlines Logo
5:59 pm - 11:49 pm
STL
-
DAY
4h 50m
1 stop
$389United Airlines
Thu, Jul 30 - Mon, Aug 3

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Delta flights from Dayton to St. Louis

Our best Delta deals on Dayton to St. Louis flight tickets
Delta
Jul 24
DAY6:38 pmDayton
6h 15m
1 stop
STL11:53 pmLambert-St Louis
Jul 27
STL3:58 pmLambert-St Louis
6h 53m
1 stop
DAY11:51 pmDayton
$369
Delta
Aug 10
DAY6:30 pmDayton
6h 28m
1 stop
STL11:58 pmLambert-St Louis
Aug 21
STL5:23 pmLambert-St Louis
5h 33m
1 stop
DAY11:56 pmDayton
$569

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
Nov 13
DAY7:15 amDayton
5h 51m
1 stop
STL12:06 pmLambert-St Louis
Nov 15
STL6:00 amLambert-St Louis
4h 03m
1 stop
DAY11:03 amDayton
$307
United Airlines
Sep 24
DAY11:32 amDayton
5h 11m
1 stop
STL3:43 pmLambert-St Louis
Sep 27
STL8:00 amLambert-St Louis
4h 43m
1 stop
DAY1:43 pmDayton
$310
United Airlines
Aug 1
DAY2:23 pmDayton
6h 00m
1 stop
STL7:23 pmLambert-St Louis
Aug 5
STL11:25 amLambert-St Louis
5h 05m
1 stop
DAY5:30 pmDayton
$319

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 July 20, 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

Thu 8/13

7:00 am-12:54 pm

1 stop6h 54m

Lambert-St Louis

Wed 8/19

6:00 am-11:52 am

1 stop4h 52m

$280

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 9/10

5:34 am-10:20 am

1 stop5h 46m

Lambert-St Louis

Sun 9/13

5:00 am-11:49 am

1 stop5h 49m

$289

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 11/13

7:15 am-12:06 pm

1 stop5h 51m

Lambert-St Louis

Sun 11/15

6:00 am-11:03 am

1 stop4h 03m

$307

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 9/24

11:32 am-3:43 pm

1 stop5h 11m

Lambert-St Louis

Sun 9/27

8:00 am-1:43 pm

1 stop4h 43m

$310

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 8/1

2:23 pm-7:23 pm

1 stop6h 00m

Lambert-St Louis

Wed 8/5

11:25 am-5:30 pm

1 stop5h 05m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 7/31

5:40 am-10:34 am

1 stop5h 54m

Lambert-St Louis

Tue 8/4

1:13 pm-8:22 pm

1 stop6h 09m

$339
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 12/12

6:00 pm-9:13 pm

1 stop4h 13m

Lambert-St Louis

Tue 12/15

7:04 pm-11:44 pm

1 stop3h 40m

$346

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 12/12

6:00 pm-9:13 pm

1 stop4h 13m

Lambert-St Louis

Tue 12/15

8:25 am-2:01 pm

1 stop4h 36m

$351

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 10/8

6:00 am-10:51 am

1 stop5h 51m

Lambert-St Louis

Sun 10/11

7:29 am-12:05 pm

1 stop3h 36m

$359

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 7/30

11:39 am-3:46 pm

1 stop5h 07m

Lambert-St Louis

Mon 8/3

5:59 pm-11:49 pm

1 stop4h 50m

$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 $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

3h 59m

Direct flights

None
The fastest flight from Dayton to St. Louis takes 3h 59m
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 59m.

  • 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
10,013 reviews
Search United Airlines flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,826 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
Collinsville
Florissant
St. Peters
Maryland Heights
O'Fallon
Alton
Farmington
Wentzville
Clayton
Fenton
Festus
Eureka
Edwardsville
Litchfield
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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