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Cheap flights from Dayton to St. Louis from $214

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 8/24. 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
6:46 pm - 11:56 pm
DAY
-
STL
6h 10m
1 stop
Delta Logo
10:50 am - 3:40 pm
STL
-
DAY
3h 50m
1 stop
$290Delta
Fri, Dec 4 - Sat, Dec 5
American Airlines Logo
7:17 pm - 11:58 pm
DAY
-
STL
5h 41m
1 stop
American Airlines Logo
5:00 am - 12:05 pm
STL
-
DAY
6h 05m
1 stop
$290American Airlines
Wed, Dec 2 - Mon, Dec 7
American Airlines Logo
7:31 pm - 11:58 pm
DAY
-
STL
5h 27m
1 stop
American Airlines Logo
5:00 am - 12:05 pm
STL
-
DAY
6h 05m
1 stop
$290American Airlines
Sat, Oct 17 - Mon, Oct 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
$299American Airlines
Fri, Sep 18 - Sun, Sep 20
Delta Logo
3:22 pm - 9:33 pm
DAY
-
STL
7h 11m
1 stop
Delta Logo
5:37 pm - 11:06 pm
STL
-
DAY
4h 29m
1 stop
$299Delta
Fri, Nov 13 - Mon, Nov 16
Delta Logo
3:25 pm - 9:23 pm
DAY
-
STL
6h 58m
1 stop
Delta Logo
7:00 am - 2:40 pm
STL
-
DAY
6h 40m
1 stop
$299Delta
Fri, Oct 9 - Sun, Oct 11
United Airlines Logo
11:34 am - 2:57 pm
DAY
-
STL
4h 23m
1 stop
United Airlines Logo
12:59 pm - 6:29 pm
STL
-
DAY
4h 30m
1 stop
$310United Airlines
Sat, Sep 5 - Mon, Sep 7
United Airlines Logo
7:15 am - 10:12 am
DAY
-
STL
3h 57m
1 stop
United Airlines Logo
7:25 am - 1:38 pm
STL
-
DAY
5h 13m
1 stop
$319United Airlines
Thu, Aug 27 - Thu, Sep 3
Delta Logo
6:47 pm - 11:54 pm
DAY
-
STL
6h 07m
1 stop
Delta Logo
5:35 pm - 11:16 pm
STL
-
DAY
4h 41m
1 stop
$319Delta
Fri, Oct 9 - Mon, Oct 12
United Airlines Logo
7:15 am - 12:02 pm
DAY
-
STL
5h 47m
1 stop
United Airlines Logo
7:25 am - 1:38 pm
STL
-
DAY
5h 13m
1 stop
$329United Airlines
Fri, Aug 14 - Tue, Aug 18

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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
Oct 17
DAY7:31 pmDayton
5h 27m
1 stop
STL11:58 pmLambert-St Louis
Oct 19
STL5:00 amLambert-St Louis
6h 05m
1 stop
DAY12:05 pmDayton
$290
American Airlines
Sep 18
DAY5:34 amDayton
5h 46m
1 stop
STL10:20 amLambert-St Louis
Sep 20
STL5:00 amLambert-St Louis
5h 49m
1 stop
DAY11:49 amDayton
$299
American Airlines
Nov 3
DAY11:24 amDayton
6h 19m
1 stop
STL4:43 pmLambert-St Louis
Nov 5
STL6:00 amLambert-St Louis
4h 53m
1 stop
DAY11:53 amDayton
$437

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
Sep 5
DAY11:34 amDayton
4h 23m
1 stop
STL2:57 pmLambert-St Louis
Sep 7
STL12:59 pmLambert-St Louis
4h 30m
1 stop
DAY6:29 pmDayton
$310
United Airlines
Aug 27
DAY7:15 amDayton
3h 57m
1 stop
STL10:12 amLambert-St Louis
Sep 3
STL7:25 amLambert-St Louis
5h 13m
1 stop
DAY1:38 pmDayton
$319
United Airlines
Aug 14
DAY7:15 amDayton
5h 47m
1 stop
STL12:02 pmLambert-St Louis
Aug 18
STL7:25 amLambert-St Louis
5h 13m
1 stop
DAY1:38 pmDayton
$329

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 31, 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

Fri 12/4

6:46 pm-11:56 pm

1 stop6h 10m

Lambert-St Louis

Sat 12/5

10:50 am-3:40 pm

1 stop3h 50m

$290

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 12/2

7:17 pm-11:58 pm

1 stop5h 41m

Lambert-St Louis

Mon 12/7

5:00 am-12:05 pm

1 stop6h 05m

$290

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 10/17

7:31 pm-11:58 pm

1 stop5h 27m

Lambert-St Louis

Mon 10/19

5:00 am-12:05 pm

1 stop6h 05m

$290

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 9/18

5:34 am-10:20 am

1 stop5h 46m

Lambert-St Louis

Sun 9/20

5:00 am-11:49 am

1 stop5h 49m

$299

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 11/13

3:22 pm-9:33 pm

1 stop7h 11m

Lambert-St Louis

Mon 11/16

5:37 pm-11:06 pm

1 stop4h 29m

$299

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 10/9

3:25 pm-9:23 pm

1 stop6h 58m

Lambert-St Louis

Sun 10/11

7:00 am-2:40 pm

1 stop6h 40m

$299
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 9/5

11:34 am-2:57 pm

1 stop4h 23m

Lambert-St Louis

Mon 9/7

12:59 pm-6:29 pm

1 stop4h 30m

$310

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 8/27

7:15 am-10:12 am

1 stop3h 57m

Lambert-St Louis

Thu 9/3

7:25 am-1:38 pm

1 stop5h 13m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 10/9

6:47 pm-11:54 pm

1 stop6h 07m

Lambert-St Louis

Mon 10/12

5:35 pm-11:16 pm

1 stop4h 41m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 8/14

7:15 am-12:02 pm

1 stop5h 47m

Lambert-St Louis

Tue 8/18

7:25 am-1:38 pm

1 stop5h 13m

$329

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $248 to $317.
The lowest price recently found on this route was $290.

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 57m

Direct flights

None
The fastest flight from Dayton to St. Louis takes 3h 57m
There are no direct flights from Dayton to St. Louis. There are no popular flight routes from Dayton to St. Louis.
Search flight deals

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 57m.

  • 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
10,053 reviews
Search United Airlines flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,846 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
St. Peters
Maryland Heights
Florissant
Collinsville
O'Fallon
Alton
Fenton
Farmington
Clayton
Wentzville
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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