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Cheap flights from St. Louis to Dallas from $49

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
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
1:00 pm - 2:56 pm
DFW
-
STL
1h 56mnonstop
$115Frontier
Tue, Aug 4 - Tue, Aug 11
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
4:16 pm - 8:57 am
DFW
-
STL
16h 41m
1 stop
$128Frontier
Tue, Aug 4 - Tue, Aug 11
Frontier Logo
3:33 pm - 5:28 pm
STL
-
DFW
1h 55mnonstop
Frontier Logo
12:49 pm - 2:48 pm
DFW
-
STL
1h 59mnonstop
$137Frontier
Tue, Aug 25 - Wed, Aug 26
Frontier Logo
3:33 pm - 5:28 pm
STL
-
DFW
1h 55mnonstop
Frontier Logo
12:49 pm - 2:48 pm
DFW
-
STL
1h 59mnonstop
$138Frontier
Tue, Aug 25 - Wed, Aug 26
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
12:49 pm - 2:48 pm
DFW
-
STL
1h 59mnonstop
$143Frontier
Tue, Aug 4 - Tue, Sep 1
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
1:00 pm - 2:56 pm
DFW
-
STL
1h 56mnonstop
$147Frontier
Tue, Jul 14 - Tue, Jul 21
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
1:00 pm - 2:56 pm
DFW
-
STL
1h 56mnonstop
$148Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
12:49 pm - 2:48 pm
DFW
-
STL
1h 59mnonstop
$153Frontier
Thu, Aug 6 - Tue, Sep 1
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
1:00 pm - 2:56 pm
DFW
-
STL
1h 56mnonstop
$156Frontier
Tue, Aug 11 - Sat, Aug 15
Frontier Logo
3:41 pm - 5:43 pm
STL
-
DFW
2h 02mnonstop
Frontier Logo
12:49 pm - 2:48 pm
DFW
-
STL
1h 59mnonstop
$158Frontier
Tue, Aug 4 - Mon, Aug 31

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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
Aug 4
STL3:41 pmLambert-St Louis
2h 02m
DFW5:43 pmDallas/Fort Worth
Aug 11
DFW1:00 pmDallas/Fort Worth
1h 56m
STL2:56 pmLambert-St Louis
$115
Frontier
Aug 4
STL3:41 pmLambert-St Louis
2h 02m
DFW5:43 pmDallas/Fort Worth
Aug 11
DFW4:16 pmDallas/Fort Worth
16h 41m
1 stop
STL8:57 amLambert-St Louis
$128
Frontier
Aug 25
STL3:33 pmLambert-St Louis
1h 55m
DFW5:28 pmDallas/Fort Worth
Aug 26
DFW12:49 pmDallas/Fort Worth
1h 59m
STL2:48 pmLambert-St Louis
$137

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 June 19, 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

Tue 8/4

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Tue 8/11

1:00 pm-2:56 pm

Nonstop1h 56m

$115

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/4

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Tue 8/11

4:16 pm-8:57 am

1 stop16h 41m

$128
Quickest round-trip

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/25

3:33 pm-5:28 pm

Nonstop1h 55m

Dallas/Fort Worth

Wed 8/26

12:49 pm-2:48 pm

Nonstop1h 59m

$137

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/25

3:33 pm-5:28 pm

Nonstop1h 55m

Dallas/Fort Worth

Wed 8/26

12:49 pm-2:48 pm

Nonstop1h 59m

$138

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/4

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Tue 9/1

12:49 pm-2:48 pm

Nonstop1h 59m

$143

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 7/14

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Tue 7/21

1:00 pm-2:56 pm

Nonstop1h 56m

$147

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 7/7

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Tue 7/14

1:00 pm-2:56 pm

Nonstop1h 56m

$148

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 8/6

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Tue 9/1

12:49 pm-2:48 pm

Nonstop1h 59m

$153

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/11

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Sat 8/15

1:00 pm-2:56 pm

Nonstop1h 56m

$156

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 8/4

3:41 pm-5:43 pm

Nonstop2h 02m

Dallas/Fort Worth

Mon 8/31

12:49 pm-2:48 pm

Nonstop1h 59m

$158

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 $194, 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 $196.

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 $473. 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 $666.

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 $375 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 $726 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 $277 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 $217 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 June 2026, prices for St. Louis to Dallas/Fort Worth Airport flights are approximately 97% 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

$173

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 $173. The best round-trip flight deal from St. Louis to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $346.
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
2,879 reviews
Search Frontier flights
SouthwestPriceFrom $164Free CancellationRating
7.9
4,239 reviews
Search Southwest flights
American AirlinesPriceFrom $168Free CancellationRating
7.1
11,699 reviews
Search American Airlines flights
JetBluePriceFrom $181Free CancellationRating
7.1
2,987 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 $168. Generally, American Airlines has 38 flights on this route every week with an average price of $302. 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 2,879 reviews) operates around 6 flights from St. Louis to Dallas/Fort Worth Airport in any given week. The average Frontier airfare for this route is around $156, 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
Plano
Grapevine
Irving
Frisco
Denton
Thackerville
Richardson
McKinney
Grand Prairie
Lewisville
Garland
Addison
Durant
Burleson
Allen
Rockwall
Mansfield
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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