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Cheap flights from St. Louis to Dallas from $36

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Dallas departing on 9/8. 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 St. Louis to Dallas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:20 am - 12:16 pm
STL
-
DFW
1h 56mnonstop
Frontier Logo
10:53 pm - 11:32 am
DFW
-
STL
12h 39m
1 stop
$161Frontier
Sun, Sep 13 - Fri, Sep 18
Frontier Logo
10:20 am - 12:16 pm
STL
-
DFW
1h 56mnonstop
Frontier Logo
10:53 pm - 11:17 am
DFW
-
STL
12h 24m
1 stop
$161Frontier
Sun, Sep 13 - Sun, Sep 13
Frontier Logo
6:41 pm - 8:46 pm
STL
-
DFW
2h 05mnonstop
Frontier Logo
10:55 pm - 7:15 pm
DFW
-
STL
20h 20m
1 stop
$161Frontier
Sun, Oct 18 - Mon, Oct 19
Frontier Logo
12:17 pm - 12:54 am
STL
-
DFW
12h 37m
1 stop
Frontier Logo
7:40 am - 9:35 am
DFW
-
STL
1h 55mnonstop
$161Frontier
Fri, Sep 11 - Sun, Sep 13
American Airlines Logo
7:00 am - 9:00 am
STL
-
DFW
2h 00mnonstop
American Airlines Logo
10:20 am - 12:15 pm
DFW
-
STL
1h 55mnonstop
$163American Airlines
Tue, Sep 15 - Wed, Sep 16
American Airlines Logo
10:14 am - 12:03 pm
STL
-
DFW
1h 49mnonstop
American Airlines Logo
7:34 am - 9:24 am
DFW
-
STL
1h 50mnonstop
$163American Airlines
Wed, Sep 23 - Wed, Sep 30
American Airlines Logo
8:36 am - 10:34 am
STL
-
DFW
1h 58mnonstop
American Airlines Logo
7:35 am - 9:24 am
DFW
-
STL
1h 49mnonstop
$163American Airlines
Wed, Aug 26 - Wed, Sep 2
Delta Logo
6:00 am - 11:16 am
STL
-
DFW
5h 16m
1 stop
Delta Logo
5:00 pm - 11:21 pm
DFW
-
STL
6h 21m
1 stop
$183Delta
Tue, Sep 1 - Tue, Sep 1
Delta Logo
11:21 am - 5:17 pm
STL
-
DFW
5h 56m
1 stop
Delta Logo
8:15 am - 1:23 pm
DFW
-
STL
5h 08m
1 stop
$183Delta
Tue, Sep 15 - Wed, Sep 16
Delta Logo
6:20 am - 12:28 pm
STL
-
DFW
6h 08m
1 stop
Delta Logo
6:32 pm - 11:26 pm
DFW
-
STL
4h 54m
1 stop
$183Delta
Tue, Aug 18 - Tue, Aug 18

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Frontier flights from St. Louis to Dallas/Fort Worth Airport

Our best Frontier deals on St. Louis to Dallas/Fort Worth Airport flight tickets
Frontier
Sep 11
STL12:17 pmLambert-St Louis
12h 37m
1 stop
DFW12:54 amDallas/Fort Worth
Sep 13
DFW7:40 amDallas/Fort Worth
1h 55m
STL9:35 amLambert-St Louis
$161
Frontier
Oct 9
STL6:41 pmLambert-St Louis
2h 05m
DFW8:46 pmDallas/Fort Worth
Oct 12
DFW3:50 pmDallas/Fort Worth
1h 56m
STL5:46 pmLambert-St Louis
$162
Frontier
Aug 11
STL4:09 pmLambert-St Louis
19h 30m
1 stop
DFW11:39 amDallas/Fort Worth
Aug 18
DFW2:20 pmDallas/Fort Worth
1h 56m
STL4:16 pmLambert-St Louis
$164

American Airlines flights from St. Louis to Dallas/Fort Worth Airport

Our best American Airlines deals on St. Louis to Dallas/Fort Worth Airport flight tickets
American Airlines
Aug 18
STL8:36 amLambert-St Louis
1h 58m
DFW10:34 amDallas/Fort Worth
Aug 25
DFW9:56 pmDallas/Fort Worth
1h 46m
STL11:42 pmLambert-St Louis
$163
American Airlines
Aug 26
STL5:42 amLambert-St Louis
1h 58m
DFW7:40 amDallas/Fort Worth
Aug 31
DFW9:56 pmDallas/Fort Worth
1h 46m
STL11:42 pmLambert-St Louis
$180
American Airlines
Aug 27
STL5:42 amLambert-St Louis
1h 58m
DFW7:40 amDallas/Fort Worth
Aug 31
DFW6:38 pmDallas/Fort Worth
1h 48m
STL8:26 pmLambert-St Louis
$197

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Dallas/Fort Worth Airport 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 31, 2026.
Use the filters below to find and compare flights from St. Louis to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sun 9/13

10:20 am-12:16 pm

Nonstop1h 56m

Dallas/Fort Worth

Fri 9/18

10:53 pm-11:32 am

1 stop12h 39m

$161

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sun 9/13

10:20 am-12:16 pm

Nonstop1h 56m

Dallas/Fort Worth

Sun 9/13

10:53 pm-11:17 am

1 stop12h 24m

$161

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sun 10/18

6:41 pm-8:46 pm

Nonstop2h 05m

Dallas/Fort Worth

Mon 10/19

10:55 pm-7:15 pm

1 stop20h 20m

$161

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 9/11

12:17 pm-12:54 am

1 stop12h 37m

Dallas/Fort Worth

Sun 9/13

7:40 am-9:35 am

Nonstop1h 55m

$161

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 9/15

7:00 am-9:00 am

Nonstop2h 00m

Dallas/Fort Worth

Wed 9/16

10:20 am-12:15 pm

Nonstop1h 55m

$163
Quickest round-trip

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 9/23

10:14 am-12:03 pm

Nonstop1h 49m

Dallas/Fort Worth

Wed 9/30

7:34 am-9:24 am

Nonstop1h 50m

$163

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 8/26

8:36 am-10:34 am

Nonstop1h 58m

Dallas/Fort Worth

Wed 9/2

7:35 am-9:24 am

Nonstop1h 49m

$163

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 9/1

6:00 am-11:16 am

1 stop5h 16m

Dallas/Fort Worth

Tue 9/1

5:00 pm-11:21 pm

1 stop6h 21m

$183

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 9/15

11:21 am-5:17 pm

1 stop5h 56m

Dallas/Fort Worth

Wed 9/16

8:15 am-1:23 pm

1 stop5h 08m

$183

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/18

6:20 am-12:28 pm

1 stop6h 08m

Dallas/Fort Worth

Tue 8/18

6:32 pm-11:26 pm

1 stop4h 54m

$183

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 Dallas from

How to get the cheapest flight ticket from St. Louis to Dallas/Fort Worth Airport

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 St. Louis and Dallas/Fort Worth Airport?

Prices are currently low for flights on this route.

Typical prices usually range from $178 to $348.
The lowest price recently found on this route was $161.

What is the cheapest month to fly to Dallas/Fort Worth Airport?

The cheapest month to fly to Dallas/Fort Worth Airport from St. Louis is in September. Flight prices, which tend to average around $217, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in September, then October is your next best option. Flight prices from St. Louis to Dallas/Fort Worth Airport during October average around $222.

What is the cheapest day to depart on your flight to Dallas/Fort Worth Airport?

On average, the least expensive day to fly to Dallas/Fort Worth Airport from St. Louis is on a Thursday. momondo users have found tickets for Thursday departures for as low as $483. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Dallas/Fort Worth Airport for around $669.

What is the cheapest time of day to depart on your flight to Dallas/Fort Worth Airport?

Flying to Dallas/Fort Worth Airport from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $390 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $771 on average. Flights to Dallas/Fort Worth Airport from St. Louis in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Lambert-St Louis to Dallas/Fort Worth flight route?

Fly from Lambert-St Louis to Dallas/Fort Worth for the best Lambert-St Louis - Dallas/Fort Worth flight prices

How far in advance should I book a flight from St. Louis to Dallas/Fort Worth Airport?

You are more likely to see cheaper flights to Dallas/Fort Worth Airport from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas/Fort Worth Airport for around $288 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas/Fort Worth Airport from St. Louis for as low as $236 on momondo.

What cabin class options are available on St. Louis to Dallas/Fort Worth Airport flights?

There are 4 cabin classes available to choose from on St. Louis to Dallas/Fort Worth Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Dallas/Fort Worth Airport flights?

No. A direct flight is the cheapest option for a flight between St. Louis to Dallas/Fort Worth Airport.

How have St. Louis to Dallas/Fort Worth Airport flight prices changed over time?

As of July 2026, prices for St. Louis to Dallas/Fort Worth Airport flights are approximately 111% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Dallas/Fort Worth Airport

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Dallas/Fort Worth Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Dallas/Fort Worth Airport (STL to DFW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Dallas/Fort Worth Airport

Best Price Found

$183

Fastest flight time

1h 35m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from St. Louis in the past 72 hours is $183. The best round-trip flight deal from St. Louis to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $400.
The fastest flight from St. Louis to Dallas/Fort Worth Airport takes 1h 35m
Direct flights go from St. Louis to Dallas/Fort Worth Airport every day.
Search flight deals

Frequently asked questions about flying from St. Louis to Dallas/Fort Worth Airport

  • How far is Lambert-St Louis to Dallas/Fort Worth by plane?

    The distance between Lambert-St Louis and Dallas/Fort Worth is about 550.5 mi. 1h 35m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Dallas/Fort Worth Airport?

    Prices for flights from Lambert-St Louis Airport to Dallas/Fort Worth Airport were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Dallas/Fort Worth Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Dallas/Fort Worth Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Dallas/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The necessary travel and health documents for your Dallas/Fort Worth Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Dallas/Fort Worth Airport?

  • What is the most popular airline from St. Louis to Dallas/Fort Worth Airport?

Best airlines flying from St. Louis to Dallas/Fort Worth Airport

Compare and see reviews for airlines that fly from St. Louis to Dallas/Fort Worth Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $68Free CancellationRating
5.6
2,746 reviews
Search Frontier flights
American AirlinesPriceFrom $172Free CancellationRating
7.1
11,846 reviews
Search American Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,226 reviews
Search Southwest flights
JetBluePriceFrom $181Free CancellationRating
7.1
3,029 reviews
Search JetBlue flights

  • American Airlines Flights From St. Louis to Dallas/Fort Worth Airport

    The lowest priced American Airlines flight from St. Louis to Dallas/Fort Worth Airport from the last 72 hours was $172. Generally, American Airlines has 26 flights on this route every week with an average price of $303. American Airlines is rated 7.1/10 by our users.

  • Frontier Flights From St. Louis to Dallas/Fort Worth Airport

    Frontier (5.6/10 from 2,746 reviews) operates around 4 flights from St. Louis to Dallas/Fort Worth Airport in any given week. The average Frontier airfare for this route is around $164, with deals from around $68 rare but found on momondo. Referenced prices are for round-trip St. Louis to Dallas/Fort Worth Airport flight searches in the last 72 hours.

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Fort Worth
Arlington
Grapevine
Plano
Irving
Frisco
Denton
Thackerville
Richardson
Lewisville
Grand Prairie
Garland
Burleson
Addison
Durant
Mansfield
Waxahachie
Rockwall
Allen
Sherman

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Dallas?

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 St. Louis to Dallas for you.

Can I find flights from St. Louis to Dallas with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Dallas flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Dallas?

momondo provides multiple filters to help you find the best flight to Dallas from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Dallas right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Dallas flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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