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Cheap flights from Dayton to St. Louis from $173

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 8/25. 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
6:40 am - 12:34 pm
DAY
-
STL
6h 54m
1 stop
Delta Logo
7:08 am - 3:04 pm
STL
-
DAY
6h 56m
1 stop
$280Delta
Sat, Jul 4 - Wed, Jul 8
United Airlines Logo
9:00 am - 2:18 pm
DAY
-
STL
6h 18m
1 stop
United Airlines Logo
5:18 pm - 10:23 pm
STL
-
DAY
4h 05m
1 stop
$341United Airlines
Wed, Nov 4 - Sat, Nov 7
United Airlines Logo
5:40 am - 8:39 am
DAY
-
STL
3h 59m
1 stop
United Airlines Logo
6:00 am - 11:04 am
STL
-
DAY
4h 04m
1 stop
$368United Airlines
Thu, Jul 2 - Sun, Jul 5
American Airlines Logo
6:31 am - 2:05 pm
DAY
-
STL
8h 34m
2 stops
American Airlines Logo
5:58 pm - 11:01 pm
STL
-
DAY
4h 03m
1 stop
$371American Airlines
Sat, Jul 4 - Tue, Jul 7
United Airlines Logo
2:23 pm - 6:13 pm
DAY
-
STL
4h 50m
1 stop
United Airlines Logo
5:59 pm - 11:49 pm
STL
-
DAY
4h 50m
1 stop
$385United Airlines
Sat, Jul 4 - Tue, Jul 7
United Airlines Logo
6:15 pm - 9:26 pm
DAY
-
STL
4h 11m
1 stop
United Airlines Logo
6:00 am - 11:04 am
STL
-
DAY
4h 04m
1 stop
$394United Airlines
Fri, Jul 10 - Sun, Jul 12
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
$427Delta
Mon, Jul 13 - Thu, Jul 16
Delta Logo
6:00 am - 9:37 am
DAY
-
STL
4h 37m
1 stop
Delta Logo
3:58 pm - 11:51 pm
STL
-
DAY
6h 53m
1 stop
$457Delta
Sun, Jul 5 - Wed, Jul 8
American Airlines Logo
8:49 am - 12:57 pm
DAY
-
STL
5h 08m
1 stop
American Airlines Logo
6:55 am - 11:59 am
STL
-
DAY
4h 04m
1 stop
$459American Airlines
Fri, Jul 17 - Sun, Jul 19
United Airlines Logo
6:15 pm - 9:26 pm
DAY
-
STL
4h 11m
1 stop
United Airlines Logo
10:20 am - 5:30 pm
STL
-
DAY
6h 10m
1 stop
$479United Airlines
Fri, Jun 26 - Tue, Jun 30

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Delta flights from Dayton to St. Louis

Our best Delta deals on Dayton to St. Louis flight tickets
Delta
Jul 4
DAY11:23 amDayton
6h 25m
1 stop
STL4:48 pmLambert-St Louis
Jul 7
STL3:58 pmLambert-St Louis
6h 53m
1 stop
DAY11:51 pmDayton
$280
Delta
Jul 13
DAY6:38 pmDayton
6h 15m
1 stop
STL11:53 pmLambert-St Louis
Jul 16
STL7:08 amLambert-St Louis
6h 56m
1 stop
DAY3:04 pmDayton
$427
Delta
Jun 18
DAY11:23 amDayton
4h 29m
1 stop
STL2:52 pmLambert-St Louis
Jun 21
STL7:08 amLambert-St Louis
6h 59m
1 stop
DAY3:07 pmDayton
$454

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
Nov 4
DAY9:00 amDayton
6h 18m
1 stop
STL2:18 pmLambert-St Louis
Nov 7
STL5:18 pmLambert-St Louis
4h 05m
1 stop
DAY10:23 pmDayton
$341
United Airlines
Jul 8
DAY11:39 amDayton
5h 07m
1 stop
STL3:46 pmLambert-St Louis
Jul 11
STL7:05 pmLambert-St Louis
3h 44m
1 stop
DAY11:49 pmDayton
$359
United Airlines
Jul 2
DAY5:40 amDayton
3h 59m
1 stop
STL8:39 amLambert-St Louis
Jul 5
STL6:00 amLambert-St Louis
4h 04m
1 stop
DAY11:04 amDayton
$368

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 13, 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 7/4

6:40 am-12:34 pm

1 stop6h 54m

Lambert-St Louis

Wed 7/8

7:08 am-3:04 pm

1 stop6h 56m

$280

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 11/4

9:00 am-2:18 pm

1 stop6h 18m

Lambert-St Louis

Sat 11/7

5:18 pm-10:23 pm

1 stop4h 05m

$341
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 7/2

5:40 am-8:39 am

1 stop3h 59m

Lambert-St Louis

Sun 7/5

6:00 am-11:04 am

1 stop4h 04m

$368

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 7/4

6:31 am-2:05 pm

2 stops8h 34m

Lambert-St Louis

Tue 7/7

5:58 pm-11:01 pm

1 stop4h 03m

$371

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 7/4

2:23 pm-6:13 pm

1 stop4h 50m

Lambert-St Louis

Tue 7/7

5:59 pm-11:49 pm

1 stop4h 50m

$385

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 7/10

6:15 pm-9:26 pm

1 stop4h 11m

Lambert-St Louis

Sun 7/12

6:00 am-11:04 am

1 stop4h 04m

$394

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 7/13

6:38 pm-11:53 pm

1 stop6h 15m

Lambert-St Louis

Thu 7/16

7:08 am-3:04 pm

1 stop6h 56m

$427

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 7/5

6:00 am-9:37 am

1 stop4h 37m

Lambert-St Louis

Wed 7/8

3:58 pm-11:51 pm

1 stop6h 53m

$457

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 7/17

8:49 am-12:57 pm

1 stop5h 08m

Lambert-St Louis

Sun 7/19

6:55 am-11:59 am

1 stop4h 04m

$459

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 6/26

6:15 pm-9:26 pm

1 stop4h 11m

Lambert-St Louis

Tue 6/30

10:20 am-5:30 pm

1 stop6h 10m

$479

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?

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 $228. 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.
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 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
9,815 reviews
Search United Airlines flights
American AirlinesPriceFrom $238Free CancellationRating
7.1
11,648 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
St. Peters
Collinsville
Alton
Wentzville
Fenton
Clayton
Farmington
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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