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Cheap flights from Dayton to St. Louis from $175

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 6/11. 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
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
9:00 am - 12:20 pm
DAY
-
STL
4h 20m
1 stop
United Airlines Logo
1:27 pm - 6:56 pm
STL
-
DAY
4h 29m
1 stop
$271United Airlines
Tue, Oct 6 - Tue, Oct 13
Delta Logo
11:20 am - 4:15 pm
DAY
-
STL
5h 55m
1 stop
Delta Logo
5:20 pm - 11:32 pm
STL
-
DAY
5h 12m
1 stop
$290Delta
Fri, May 29 - Sun, May 31
United Airlines Logo
5:54 am - 8:41 am
DAY
-
STL
3h 47m
1 stop
United Airlines Logo
1:13 pm - 8:22 pm
STL
-
DAY
6h 09m
1 stop
$309United Airlines
Thu, Jun 25 - Thu, Jul 2
American Airlines Logo
6:00 am - 12:41 pm
DAY
-
STL
7h 41m
1 stop
American Airlines Logo
5:20 am - 12:02 pm
STL
-
DAY
5h 42m
1 stop
$314American Airlines
Sat, May 16 - Sun, May 17
American Airlines Logo
6:30 pm - 10:19 pm
DAY
-
STL
4h 49m
1 stop
American Airlines Logo
5:20 am - 12:02 pm
STL
-
DAY
5h 42m
1 stop
$319American Airlines
Wed, May 13 - Sun, May 17
United Airlines Logo
6:10 pm - 10:50 pm
DAY
-
STL
5h 40m
1 stop
United Airlines Logo
6:00 am - 1:42 pm
STL
-
DAY
6h 42m
1 stop
$341United Airlines
Sat, May 30 - Wed, Jun 3
United Airlines Logo
6:05 pm - 9:16 pm
DAY
-
STL
4h 11m
1 stop
United Airlines Logo
1:13 pm - 7:02 pm
STL
-
DAY
4h 49m
1 stop
$350United Airlines
Wed, Jun 10 - Sun, Jun 14
United Airlines Logo
12:37 pm - 6:12 pm
DAY
-
STL
6h 35m
1 stop
United Airlines Logo
7:45 am - 1:40 pm
STL
-
DAY
4h 55m
1 stop
$454United Airlines
Wed, May 13 - Sun, May 17
Multiple Airlines Logo
9:12 pm - 12:09 am
DAY
-
STL
27h 57m
1 stop
Multiple Airlines Logo
4:17 pm - 8:35 pm
STL
-
DAY
27h 18m
2 stops
$496Multiple Airlines
Thu, Jun 25 - Thu, Jul 2
Delta Logo
6:46 pm - 11:59 pm
DAY
-
STL
6h 13m
1 stop
Delta Logo
7:05 am - 2:29 pm
STL
-
DAY
6h 24m
1 stop
$519Delta
Mon, May 11 - Fri, May 15

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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
Oct 6
DAY9:00 amDayton
4h 20m
1 stop
STL12:20 pmLambert-St Louis
Oct 13
STL1:27 pmLambert-St Louis
4h 29m
1 stop
DAY6:56 pmDayton
$271
United Airlines
Jun 25
DAY5:54 amDayton
3h 47m
1 stop
STL8:41 amLambert-St Louis
Jul 2
STL1:13 pmLambert-St Louis
6h 09m
1 stop
DAY8:22 pmDayton
$309
United Airlines
May 30
DAY6:10 pmDayton
5h 40m
1 stop
STL10:50 pmLambert-St Louis
Jun 3
STL6:00 amLambert-St Louis
6h 42m
1 stop
DAY1:42 pmDayton
$341

American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets
American Airlines
May 16
DAY6:00 amDayton
7h 41m
1 stop
STL12:41 pmLambert-St Louis
May 17
STL5:20 amLambert-St Louis
5h 42m
1 stop
DAY12:02 pmDayton
$314
American Airlines
May 13
DAY6:30 pmDayton
4h 49m
1 stop
STL10:19 pmLambert-St Louis
May 17
STL5:20 amLambert-St Louis
5h 42m
1 stop
DAY12:02 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 April 30, 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
Quickest round-trip

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 10/6

9:00 am-12:20 pm

1 stop4h 20m

Lambert-St Louis

Tue 10/13

1:27 pm-6:56 pm

1 stop4h 29m

$271

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 5/29

11:20 am-4:15 pm

1 stop5h 55m

Lambert-St Louis

Sun 5/31

5:20 pm-11:32 pm

1 stop5h 12m

$290

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 6/25

5:54 am-8:41 am

1 stop3h 47m

Lambert-St Louis

Thu 7/2

1:13 pm-8:22 pm

1 stop6h 09m

$309

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 5/16

6:00 am-12:41 pm

1 stop7h 41m

Lambert-St Louis

Sun 5/17

5:20 am-12:02 pm

1 stop5h 42m

$314

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 5/13

6:30 pm-10:19 pm

1 stop4h 49m

Lambert-St Louis

Sun 5/17

5:20 am-12:02 pm

1 stop5h 42m

$319

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 5/30

6:10 pm-10:50 pm

1 stop5h 40m

Lambert-St Louis

Wed 6/3

6:00 am-1:42 pm

1 stop6h 42m

$341

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 6/10

6:05 pm-9:16 pm

1 stop4h 11m

Lambert-St Louis

Sun 6/14

1:13 pm-7:02 pm

1 stop4h 49m

$350

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 5/13

12:37 pm-6:12 pm

1 stop6h 35m

Lambert-St Louis

Sun 5/17

7:45 am-1:40 pm

1 stop4h 55m

$454

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 6/25

9:12 pm-12:09 am

1 stop27h 57m

Lambert-St Louis

Thu 7/2

4:17 pm-8:35 pm

2 stops27h 18m

$496

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Mon 5/11

6:46 pm-11:59 pm

1 stop6h 13m

Lambert-St Louis

Fri 5/15

7:05 am-2:29 pm

1 stop6h 24m

$519

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 $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.
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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
9,677 reviews
Search United Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,681 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
Maryland Heights
O'Fallon
Florissant
St. Peters
Collinsville
Wentzville
Alton
Fenton
Farmington
Festus
Clayton
Eureka
Litchfield
Edwardsville
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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