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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 8/14. 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.
United Airlines Logo
6:11 pm - 10:59 pm
DAY
-
STL
5h 48m
1 stop
United Airlines Logo
6:54 pm - 11:59 pm
STL
-
DAY
4h 05m
1 stop
$271United Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
11:39 am - 2:30 pm
DAY
-
STL
3h 51m
1 stop
United Airlines Logo
7:33 am - 1:04 pm
STL
-
DAY
4h 31m
1 stop
$280United Airlines
Thu, Nov 12 - Tue, Nov 17
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
Fri, Sep 18 - Sun, Sep 20
American Airlines Logo
7:00 am - 12:55 pm
DAY
-
STL
6h 55m
2 stops
American Airlines Logo
1:25 pm - 9:20 pm
STL
-
DAY
6h 55m
1 stop
$362American Airlines
Sat, Aug 15 - Sat, Aug 22
United Airlines Logo
6:00 am - 10:12 am
DAY
-
STL
5h 12m
1 stop
United Airlines Logo
12:59 pm - 6:29 pm
STL
-
DAY
4h 30m
1 stop
$365United Airlines
Fri, Sep 4 - Mon, Sep 7
American Airlines Logo
7:00 am - 12:55 pm
DAY
-
STL
6h 55m
2 stops
American Airlines Logo
1:25 pm - 9:20 pm
STL
-
DAY
6h 55m
1 stop
$389American Airlines
Sat, Aug 15 - Sat, Aug 22
Delta Logo
6:30 pm - 11:21 pm
DAY
-
STL
5h 51m
1 stop
Delta Logo
7:00 am - 2:36 pm
STL
-
DAY
6h 36m
1 stop
$427Delta
Wed, Aug 5 - Fri, Aug 7
United Airlines Logo
6:15 pm - 9:26 pm
DAY
-
STL
4h 11m
1 stop
United Airlines Logo
9:30 am - 5:30 pm
STL
-
DAY
7h 00m
1 stop
$437United Airlines
Sun, Aug 9 - Fri, Aug 14
Delta Logo
6:00 am - 9:39 am
DAY
-
STL
4h 39m
1 stop
Delta Logo
5:23 pm - 11:56 pm
STL
-
DAY
5h 33m
1 stop
$447Delta
Sun, Aug 9 - Sun, Aug 9
United Airlines Logo
6:00 pm - 9:13 pm
DAY
-
STL
4h 13m
1 stop
United Airlines Logo
7:33 am - 8:31 pm
STL
-
DAY
11h 58m
1 stop
$467United Airlines
Tue, Dec 8 - Sat, Dec 12

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United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
Aug 15
DAY6:11 pmDayton
5h 48m
1 stop
STL10:59 pmLambert-St Louis
Aug 22
STL6:54 pmLambert-St Louis
4h 05m
1 stop
DAY11:59 pmDayton
$271
United Airlines
Nov 12
DAY11:39 amDayton
3h 51m
1 stop
STL2:30 pmLambert-St Louis
Nov 17
STL7:33 amLambert-St Louis
4h 31m
1 stop
DAY1:04 pmDayton
$280
United Airlines
Jul 10
DAY11:39 amDayton
5h 07m
1 stop
STL3:46 pmLambert-St Louis
Jul 12
STL5:59 pmLambert-St Louis
4h 50m
1 stop
DAY11:49 pmDayton
$359

American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets
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
$289
American Airlines
Aug 15
DAY7:00 amDayton
6h 55m
2 stops
STL12:55 pmLambert-St Louis
Aug 22
STL1:25 pmLambert-St Louis
6h 55m
1 stop
DAY9:20 pmDayton
$362
American Airlines
Aug 15
DAY7:00 amDayton
6h 55m
2 stops
STL12:55 pmLambert-St Louis
Aug 22
STL1:25 pmLambert-St Louis
6h 55m
1 stop
DAY9:20 pmDayton
$389

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 8, 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

Sat 8/15

6:11 pm-10:59 pm

1 stop5h 48m

Lambert-St Louis

Sat 8/22

6:54 pm-11:59 pm

1 stop4h 05m

$271
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 11/12

11:39 am-2:30 pm

1 stop3h 51m

Lambert-St Louis

Tue 11/17

7:33 am-1:04 pm

1 stop4h 31m

$280

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

$289

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 8/15

7:00 am-12:55 pm

2 stops6h 55m

Lambert-St Louis

Sat 8/22

1:25 pm-9:20 pm

1 stop6h 55m

$362

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 9/4

6:00 am-10:12 am

1 stop5h 12m

Lambert-St Louis

Mon 9/7

12:59 pm-6:29 pm

1 stop4h 30m

$365

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 8/15

7:00 am-12:55 pm

2 stops6h 55m

Lambert-St Louis

Sat 8/22

1:25 pm-9:20 pm

1 stop6h 55m

$389

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 8/5

6:30 pm-11:21 pm

1 stop5h 51m

Lambert-St Louis

Fri 8/7

7:00 am-2:36 pm

1 stop6h 36m

$427

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 8/9

6:15 pm-9:26 pm

1 stop4h 11m

Lambert-St Louis

Fri 8/14

9:30 am-5:30 pm

1 stop7h 00m

$437

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 8/9

6:00 am-9:39 am

1 stop4h 39m

Lambert-St Louis

Sun 8/9

5:23 pm-11:56 pm

1 stop5h 33m

$447

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 12/8

6:00 pm-9:13 pm

1 stop4h 13m

Lambert-St Louis

Sat 12/12

7:33 am-8:31 pm

1 stop11h 58m

$467

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
9,948 reviews
Search United Airlines flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,783 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
St. Peters
O'Fallon
Collinsville
Alton
Farmington
Wentzville
Clayton
Fenton
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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