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Cheap flights from Dayton to St. Louis from $192

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 5/26. 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
6:00 am - 12:48 pm
DAY
-
STL
7h 48m
1 stop
American Airlines Logo
1:29 pm - 9:38 pm
STL
-
DAY
7h 09m
1 stop
$309American Airlines
Fri, May 1 - Mon, May 4
Delta Logo
6:44 pm - 11:36 pm
DAY
-
STL
5h 52m
1 stop
Delta Logo
6:00 am - 2:04 pm
STL
-
DAY
7h 04m
1 stop
$314Delta
Sun, Apr 26 - Sun, May 3
Delta Logo
11:31 am - 3:13 pm
DAY
-
STL
4h 42m
1 stop
Delta Logo
7:25 am - 2:04 pm
STL
-
DAY
5h 39m
1 stop
$319Delta
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
6:03 pm - 11:19 pm
DAY
-
STL
6h 16m
1 stop
United Airlines Logo
6:30 am - 11:00 am
STL
-
DAY
3h 30m
1 stop
$341United Airlines
Sat, May 9 - Tue, May 12
United Airlines Logo
8:10 pm - 11:11 pm
DAY
-
STL
4h 01m
1 stop
United Airlines Logo
1:10 pm - 6:12 pm
STL
-
DAY
4h 02m
1 stop
$389United Airlines
Fri, Apr 10 - Tue, Apr 14
United Airlines Logo
10:28 am - 9:13 pm
DAY
-
STL
11h 45m
2 stops
United Airlines Logo
5:28 pm - 11:59 pm
STL
-
DAY
5h 31m
1 stop
$502United Airlines
Sat, May 9 - Tue, May 12
Multiple Airlines Logo
10:19 am - 11:19 pm
DAY
-
STL
14h 00m
1 stop
Multiple Airlines Logo
8:06 pm - 8:29 pm
STL
-
DAY
23h 23m
2 stops
$512Multiple Airlines
Sun, Apr 26 - Sun, May 3
United Airlines Logo
8:10 pm - 11:11 pm
DAY
-
STL
4h 01m
1 stop
United Airlines Logo
11:15 am - 6:12 pm
STL
-
DAY
5h 57m
1 stop
$513United Airlines
Thu, Apr 9 - Mon, Apr 13
American Airlines Logo
12:35 pm - 4:00 pm
DAY
-
STL
4h 25m
1 stop
American Airlines Logo
7:05 am - 12:15 pm
STL
-
DAY
4h 10m
1 stop
$519American Airlines
Wed, Apr 15 - Thu, Apr 16
United Airlines Logo
7:33 pm - 9:13 pm
DAY
-
STL
26h 40m
2 stops
United Airlines Logo
6:55 pm - 11:59 pm
STL
-
DAY
4h 04m
1 stop
$521United Airlines
Fri, Apr 24 - Mon, Apr 27

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets
United Airlines
May 9
DAY6:03 pmDayton
6h 16m
1 stop
STL11:19 pmLambert-St Louis
May 12
STL6:30 amLambert-St Louis
3h 30m
1 stop
DAY11:00 amDayton
$341
United Airlines
Apr 10
DAY8:10 pmDayton
4h 01m
1 stop
STL11:11 pmLambert-St Louis
Apr 14
STL1:10 pmLambert-St Louis
4h 02m
1 stop
DAY6:12 pmDayton
$389
United Airlines
May 9
DAY10:28 amDayton
11h 45m
2 stops
STL9:13 pmLambert-St Louis
May 12
STL5:28 pmLambert-St Louis
5h 31m
1 stop
DAY11:59 pmDayton
$502

Delta flights from Dayton to St. Louis

Our best Delta deals on Dayton to St. Louis flight tickets
Delta
Apr 26
DAY6:44 pmDayton
5h 52m
1 stop
STL11:36 pmLambert-St Louis
May 3
STL6:00 amLambert-St Louis
7h 04m
1 stop
DAY2:04 pmDayton
$314
Delta
Apr 9
DAY11:31 amDayton
4h 42m
1 stop
STL3:13 pmLambert-St Louis
Apr 13
STL7:25 amLambert-St Louis
5h 39m
1 stop
DAY2:04 pmDayton
$319
Delta
Apr 8
DAY6:34 pmDayton
6h 24m
1 stop
STL11:58 pmLambert-St Louis
Apr 10
STL6:00 amLambert-St Louis
6h 49m
1 stop
DAY1:49 pmDayton
$637

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 29, 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 5/1

6:00 am-12:48 pm

1 stop7h 48m

Lambert-St Louis

Mon 5/4

1:29 pm-9:38 pm

1 stop7h 09m

$309

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 4/26

6:44 pm-11:36 pm

1 stop5h 52m

Lambert-St Louis

Sun 5/3

6:00 am-2:04 pm

1 stop7h 04m

$314

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/9

11:31 am-3:13 pm

1 stop4h 42m

Lambert-St Louis

Mon 4/13

7:25 am-2:04 pm

1 stop5h 39m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 5/9

6:03 pm-11:19 pm

1 stop6h 16m

Lambert-St Louis

Tue 5/12

6:30 am-11:00 am

1 stop3h 30m

$341
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 4/10

8:10 pm-11:11 pm

1 stop4h 01m

Lambert-St Louis

Tue 4/14

1:10 pm-6:12 pm

1 stop4h 02m

$389

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 5/9

10:28 am-9:13 pm

2 stops11h 45m

Lambert-St Louis

Tue 5/12

5:28 pm-11:59 pm

1 stop5h 31m

$502

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sun 4/26

10:19 am-11:19 pm

1 stop14h 00m

Lambert-St Louis

Sun 5/3

8:06 pm-8:29 pm

2 stops23h 23m

$512

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 4/9

8:10 pm-11:11 pm

1 stop4h 01m

Lambert-St Louis

Mon 4/13

11:15 am-6:12 pm

1 stop5h 57m

$513

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 4/15

12:35 pm-4:00 pm

1 stop4h 25m

Lambert-St Louis

Thu 4/16

7:05 am-12:15 pm

1 stop4h 10m

$519

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 4/24

7:33 pm-9:13 pm

2 stops26h 40m

Lambert-St Louis

Mon 4/27

6:55 pm-11:59 pm

1 stop4h 04m

$521

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 $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 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.
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 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
9,514 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,530 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
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
Shrewsbury
Grafton

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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