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Cheap flights from St. Louis to Dallas from $35

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 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Frontier Logo
10:17 am - 12:14 pmSTL-DFW
1h 57mnonstop
Frontier Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$104Frontier
Find Deal
Thu, Oct 9 - Sun, Oct 12
Frontier Logo
4:52 pm - 10:39 pmSTL-DFW
5h 47m1 stop
Frontier Logo
9:17 am - 11:09 amDFW-STL
1h 52mnonstop
$105Frontier
Find Deal
Fri, Oct 31 - Sun, Nov 2
Frontier Logo
11:32 am - 10:39 pmSTL-DFW
11h 07m1 stop
Frontier Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$106Frontier
Find Deal
Thu, Oct 9 - Sun, Oct 12
Frontier Logo
1:41 pm - 11:27 amSTL-DFW
21h 46m1 stop
Frontier Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$108Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Frontier Logo
10:17 am - 12:14 pmSTL-DFW
1h 57mnonstop
Frontier Logo
3:35 pm - 5:27 pmDFW-STL
1h 52mnonstop
$110Frontier
Find Deal
Sun, Oct 26 - Thu, Oct 30
Logo
10:57 am - 5:45 pmSTL-DFW
6h 48m1 stop
Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$129
Find Deal
Thu, Oct 9 - Sun, Oct 12
American Airlines Logo
5:20 am - 7:18 amSTL-DFW
1h 58mnonstop
American Airlines Logo
7:00 am - 8:53 amDFW-STL
1h 53mnonstop
$139American Airlines
Find Deal
Sat, Oct 18 - Tue, Oct 21
American Airlines Logo
7:00 am - 8:58 amSTL-DFW
1h 58mnonstop
American Airlines Logo
7:00 am - 8:53 amDFW-STL
1h 53mnonstop
$149American Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 15
American Airlines Logo
8:49 am - 10:46 amSTL-DFW
1h 57mnonstop
American Airlines Logo
6:59 pm - 8:53 pmDFW-STL
1h 54mnonstop
$159American Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
American Airlines Logo
5:17 am - 7:17 amSTL-DFW
2h 00mnonstop
American Airlines Logo
7:08 am - 8:57 amDFW-STL
1h 49mnonstop
$169American Airlines
Find Deal
Mon, Nov 3 - Wed, Nov 5

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
Oct 9
STL10:17 amLambert-St Louis
1h 57m
DFW12:14 pmDallas/Fort Worth
Oct 12
DFW7:30 amDallas/Fort Worth
1h 52m
STL9:22 amLambert-St Louis
$104
Find similar
Frontier
Oct 31
STL4:52 pmLambert-St Louis
5h 47m
1 stop
DFW10:39 pmDallas/Fort Worth
Nov 2
DFW9:17 amDallas/Fort Worth
1h 52m
STL11:09 amLambert-St Louis
$105
Find similar
Frontier
Oct 9
STL11:32 amLambert-St Louis
11h 07m
1 stop
DFW10:39 pmDallas/Fort Worth
Oct 12
DFW7:30 amDallas/Fort Worth
1h 52m
STL9:22 amLambert-St Louis
$106
Find similar

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
Oct 18
STL5:20 amLambert-St Louis
1h 58m
DFW7:18 amDallas/Fort Worth
Oct 21
DFW7:00 amDallas/Fort Worth
1h 53m
STL8:53 amLambert-St Louis
$139
Find similar
American Airlines
Oct 8
STL7:00 amLambert-St Louis
1h 58m
DFW8:58 amDallas/Fort Worth
Oct 15
DFW7:00 amDallas/Fort Worth
1h 53m
STL8:53 amLambert-St Louis
$149
Find similar
American Airlines
Oct 7
STL8:49 amLambert-St Louis
1h 57m
DFW10:46 amDallas/Fort Worth
Oct 11
DFW6:59 pmDallas/Fort Worth
1h 54m
STL8:53 pmLambert-St Louis
$159
Find similar

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 September 15, 2025.
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

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 10/9

10:17 am-12:14 pm

Nonstop1h 57m

Dallas/Fort Worth

Sun 10/12

7:30 am-9:22 am

Nonstop1h 52m

$104

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 10/31

4:52 pm-10:39 pm

1 stop5h 47m

Dallas/Fort Worth

Sun 11/2

9:17 am-11:09 am

Nonstop1h 52m

$105

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 10/9

11:32 am-10:39 pm

1 stop11h 07m

Dallas/Fort Worth

Sun 10/12

7:30 am-9:22 am

Nonstop1h 52m

$106

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 10/23

1:41 pm-11:27 am

1 stop21h 46m

Dallas/Fort Worth

Sun 10/26

7:30 am-9:22 am

Nonstop1h 52m

$108

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sun 10/26

10:17 am-12:14 pm

Nonstop1h 57m

Dallas/Fort Worth

Thu 10/30

3:35 pm-5:27 pm

Nonstop1h 52m

$110

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 10/9

10:57 am-5:45 pm

1 stop6h 48m

Dallas/Fort Worth

Sun 10/12

7:30 am-9:22 am

Nonstop1h 52m

$129

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 10/18

5:20 am-7:18 am

Nonstop1h 58m

Dallas/Fort Worth

Tue 10/21

7:00 am-8:53 am

Nonstop1h 53m

$139

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 10/8

7:00 am-8:58 am

Nonstop1h 58m

Dallas/Fort Worth

Wed 10/15

7:00 am-8:53 am

Nonstop1h 53m

$149

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 10/7

8:49 am-10:46 am

Nonstop1h 57m

Dallas/Fort Worth

Sat 10/11

6:59 pm-8:53 pm

Nonstop1h 54m

$159

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Mon 11/3

5:17 am-7:17 am

Nonstop2h 00m

Dallas/Fort Worth

Wed 11/5

7:08 am-8:57 am

Nonstop1h 49m

$169

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?

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 August. Flight prices, which tend to average around $193, 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 August, then September is your next best option. Flight prices from St. Louis to Dallas/Fort Worth Airport during September average around $200.

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 Friday. momondo users have found tickets for Friday departures for as low as $486. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, 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 $627.

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 $353 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $551 on average. Flights to Dallas/Fort Worth Airport from St. Louis at noon 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 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 $279 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 $237 on momondo.

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

There are 4 cabin classes available to choose from on Lambert-St Louis to Dallas/Fort Worth 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 September 2025, prices for St. Louis to Dallas/Fort Worth Airport flights are approximately 44% cheaper 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

$152

Fastest flight time

1h 50m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from St. Louis in the past 72 hours is $152. The best round-trip flight deal from St. Louis to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $308.
The fastest flight from St. Louis to Dallas/Fort Worth Airport takes 1h 50m
Direct flights go from St. Louis to Dallas/Fort Worth Airport every day.
Search flight deals

  • 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 50m 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 $62Free CancellationRating
5.8
3,172 reviews
Search Frontier flights
SouthwestPriceFrom $170Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $172Free CancellationRating
7.2
10,000 reviews
Search American Airlines 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 38 flights on this route every week with an average price of $316. American Airlines is rated 7.2/10 by our users.

Traveling to a place near Dallas?

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

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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