What is the cheapest airline that flies from Dayton to Lambert-St Louis?

American Airlines, Delta, and United Airlines are the most popular carriers operating from Dayton to Lambert-St Louis

What airlines fly to St. Louis?

Southwest, American Airlines and United Airlines are the top three most popular airlines that fly to St. Louis from Dayton according to our data. Southwest is the first choice among our users, with 53% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 5 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.

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?

There are 2 operators available for flights from Dayton Airport to Lambert-St Louis Airport as of December 2025.

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.

$207 Cheap Flights from Dayton to St. Louis in 2025/26

Q: What is the typical price of a round-trip flight between Dayton and St. Louis?

Prices are currently low for flights on this route. Typical prices usually range from $248 to $389. The lowest price recently found on this route was $229.

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Find the cheapest flights from Dayton to St. Louis

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

11:00 am - 2:29 pmDAY-STL

4h 29m1 stop

6:45 pm - 11:43 pmSTL-DAY

3h 58m1 stop

$229United Airlines

Find Deal

Thu, Feb 19 - Mon, Feb 23

6:00 am - 11:02 amDAY-STL

6h 02m1 stop

6:00 am - 10:55 amSTL-DAY

3h 55m1 stop

$244Delta

Find Deal

Thu, Feb 19 - Sun, Feb 22

5:21 pm - 9:43 pmDAY-STL

5h 22m1 stop

1:12 pm - 7:37 pmSTL-DAY

5h 25m1 stop

$246United Airlines

Find Deal

Tue, Dec 30 - Tue, Jan 6

4:16 pm - 9:57 pmDAY-STL

6h 41m1 stop

6:00 am - 2:10 pmSTL-DAY

7h 10m1 stop

$259Delta

Find Deal

Sat, Dec 13 - Tue, Dec 16

6:05 am - 12:21 pmDAY-STL

7h 16m1 stop

6:00 am - 11:19 amSTL-DAY

4h 19m1 stop

$264Delta

Find Deal

Wed, Dec 31 - Thu, Jan 1

6:00 am - 10:24 amDAY-STL

5h 24m1 stop

5:12 pm - 11:11 pmSTL-DAY

4h 59m1 stop

$279Delta

Find Deal

Sat, Dec 13 - Mon, Dec 15

7:56 am - 1:14 pmDAY-STL

6h 18m1 stop

4:49 pm - 11:09 pmSTL-DAY

5h 20m1 stop

$299American Airlines

Find Deal

Fri, Dec 12 - Sat, Dec 13

11:47 am - 10:33 pmDAY-STL

11h 46m1 stop

10:42 am - 8:32 pmSTL-DAY

32h 50m2 stops

$322Multiple Airlines

Find Deal

Thu, Feb 19 - Sun, Feb 22

9:20 am - 2:25 pmDAY-STL

6h 05m1 stop

6:35 pm - 11:44 pmSTL-DAY

4h 09m1 stop

$339United Airlines

Find Deal

Tue, Dec 16 - Sat, Dec 20

6:59 am - 1:14 pmDAY-STL

7h 15m1 stop

11:05 am - 8:38 pmSTL-DAY

8h 33m2 stops

$353American Airlines

Find Deal

Tue, Dec 30 - Tue, Jan 6

American Airlines flights from Dayton to St. Louis

Our best American Airlines deals on Dayton to St. Louis flight tickets

American Airlines

Dec 12

DAY7:56 amDayton

6h 18m

1 stop

STL1:14 pmLambert-St Louis

Dec 13

STL4:49 pmLambert-St Louis

5h 20m

1 stop

DAY11:09 pmDayton

$299

Find similar

American Airlines

Dec 5

DAY5:49 amDayton

5h 37m

1 stop

STL10:26 amLambert-St Louis

Dec 7

STL5:15 amLambert-St Louis

6h 05m

1 stop

DAY12:20 pmDayton

$319

Find similar

American Airlines

Dec 30

DAY6:59 amDayton

7h 15m

1 stop

STL1:14 pmLambert-St Louis

Jan 6

STL11:05 amLambert-St Louis

8h 33m

2 stops

DAY8:38 pmDayton

$353

Find similar

United Airlines flights from Dayton to St. Louis

Our best United Airlines deals on Dayton to St. Louis flight tickets

United Airlines

Feb 19

DAY11:00 amDayton

4h 29m

1 stop

STL2:29 pmLambert-St Louis

Feb 23

STL6:45 pmLambert-St Louis

3h 58m

1 stop

DAY11:43 pmDayton

$229

Find similar

United Airlines

Dec 30

DAY5:21 pmDayton

5h 22m

1 stop

STL9:43 pmLambert-St Louis

Jan 6

STL1:12 pmLambert-St Louis

5h 25m

1 stop

DAY7:37 pmDayton

$246

Find similar

United Airlines

Dec 16

DAY9:20 amDayton

6h 05m

1 stop

STL2:25 pmLambert-St Louis

Dec 20

STL6:35 pmLambert-St Louis

4h 09m

1 stop

DAY11:44 pmDayton

$339

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 2/19

11:00 am-2:29 pm

1 stop4h 29m

Lambert-St Louis

Mon 2/23

6:45 pm-11:43 pm

1 stop3h 58m

$229

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 2/19

6:00 am-11:02 am

1 stop6h 02m

Lambert-St Louis

Sun 2/22

6:00 am-10:55 am

1 stop3h 55m

$244

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 12/30

5:21 pm-9:43 pm

1 stop5h 22m

Lambert-St Louis

Tue 1/6

1:12 pm-7:37 pm

1 stop5h 25m

$246

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 12/13

4:16 pm-9:57 pm

1 stop6h 41m

Lambert-St Louis

Tue 12/16

6:00 am-2:10 pm

1 stop7h 10m

$259

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Wed 12/31

6:05 am-12:21 pm

1 stop7h 16m

Lambert-St Louis

Thu 1/1

6:00 am-11:19 am

1 stop4h 19m

$264

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Sat 12/13

6:00 am-10:24 am

1 stop5h 24m

Lambert-St Louis

Mon 12/15

5:12 pm-11:11 pm

1 stop4h 59m

$279

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Fri 12/12

7:56 am-1:14 pm

1 stop6h 18m

Lambert-St Louis

Sat 12/13

4:49 pm-11:09 pm

1 stop5h 20m

$299

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Thu 2/19

11:47 am-10:33 pm

1 stop11h 46m

Lambert-St Louis

Sun 2/22

10:42 am-8:32 pm

2 stops32h 50m

$322

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 12/16

9:20 am-2:25 pm

1 stop6h 05m

Lambert-St Louis

Sat 12/20

6:35 pm-11:44 pm

1 stop4h 09m

$339

DaytonSt. Louis

DAY - STL

DAYSTL

Dayton

Tue 12/30

6:59 am-1:14 pm

1 stop7h 15m

Lambert-St Louis

Tue 1/6

11:05 am-8:38 pm

2 stops8h 33m

$353

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 January is another great option to travel to St. Louis, with average flight prices from Dayton averaging around $288.

What is the cheapest day to depart on your flight to St. Louis?

The cheapest day to depart on your flight to St. Louis is on a Saturday when prices can be found for as low as $260. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $474. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.

What is the cheapest time of day to depart on your flight to St. Louis?

Flying to St. Louis from Dayton in the morning is the least expensive time of day to depart. momondo users have found prices as low as $322 when looking at flights departing in the morning. At noon is when there is more demand to fly to St. Louis, so prices are often more expensive at around $543 per ticket.

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 29m
Direct flights	None

The fastest flight from Dayton to St. Louis takes 4h 29m

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 3h 20m.
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?
There are 2 operators available for flights from Dayton Airport to Lambert-St Louis Airport as of December 2025.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Dayton to St. Louis is American Airlines (73% of total bookings). The next most popular airline is United Airlines (27%).

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
American Airlines	PriceFrom $228	Free Cancellation	Rating 7.2 11,044 reviews		Search American Airlines flights
United Airlines	PriceFrom $228	Free Cancellation	Rating 7.4 9,063 reviews		Search United Airlines flights

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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.