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Cheap flights from St. Louis to Dallas from $34

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 6/6. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:03 pm - 9:00 pm
STL
-
DFW
1h 57mnonstop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$121Frontier
Tue, Jun 16 - Thu, Jun 18
Frontier Logo
3:30 pm - 5:36 pm
STL
-
DFW
2h 06mnonstop
Frontier Logo
10:00 pm - 11:57 pm
DFW
-
STL
25h 57m
1 stop
$124Frontier
Sun, May 24 - Tue, May 26
Frontier Logo
7:03 pm - 9:00 pm
STL
-
DFW
1h 57mnonstop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$125Frontier
Thu, Jun 18 - Thu, Jun 25
Frontier Logo
4:19 pm - 7:50 am
STL
-
DFW
15h 31m
1 stop
Frontier Logo
12:00 pm - 1:55 pm
DFW
-
STL
1h 55mnonstop
$127Frontier
Sat, May 30 - Sat, Jun 6
Frontier Logo
3:25 pm - 5:31 pm
STL
-
DFW
2h 06mnonstop
Frontier Logo
9:14 am - 7:23 pm
DFW
-
STL
10h 09m
1 stop
$129Frontier
Sat, Jun 6 - Wed, Jun 10
Frontier Logo
4:19 pm - 7:50 am
STL
-
DFW
15h 31m
1 stop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$130Frontier
Wed, Jun 3 - Wed, Jun 10
Frontier Logo
9:06 pm - 5:41 am
STL
-
DFW
8h 35m
1 stop
Frontier Logo
12:36 pm - 2:31 pm
DFW
-
STL
1h 55mnonstop
$134Frontier
Fri, Jun 5 - Sun, Jun 7
Frontier Logo
8:08 pm - 8:09 am
STL
-
DFW
12h 01m
1 stop
Frontier Logo
4:37 pm - 6:34 pm
DFW
-
STL
1h 57mnonstop
$135Frontier
Wed, Jun 24 - Sat, Jun 27
Frontier Logo
3:25 pm - 5:31 pm
STL
-
DFW
2h 06mnonstop
Frontier Logo
10:59 pm - 6:08 pm
DFW
-
STL
19h 09m
1 stop
$136Frontier
Sat, Jun 6 - Tue, Jun 9
Frontier Logo
8:08 pm - 1:01 pm
STL
-
DFW
16h 53m
1 stop
Frontier Logo
12:36 pm - 2:31 pm
DFW
-
STL
1h 55mnonstop
$138Frontier
Tue, May 26 - Thu, May 28

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
Jun 16
STL7:03 pmLambert-St Louis
1h 57m
DFW9:00 pmDallas/Fort Worth
Jun 18
DFW4:21 pmDallas/Fort Worth
1h 57m
STL6:18 pmLambert-St Louis
$121
Frontier
Jun 6
STL3:25 pmLambert-St Louis
2h 06m
DFW5:31 pmDallas/Fort Worth
Jun 7
DFW5:18 amDallas/Fort Worth
14h 05m
1 stop
STL7:23 pmLambert-St Louis
$124
Frontier
Jun 18
STL7:03 pmLambert-St Louis
1h 57m
DFW9:00 pmDallas/Fort Worth
Jun 25
DFW4:21 pmDallas/Fort Worth
1h 57m
STL6:18 pmLambert-St Louis
$125

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 May 4, 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
Quickest round-trip

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 6/16

7:03 pm-9:00 pm

Nonstop1h 57m

Dallas/Fort Worth

Thu 6/18

4:21 pm-6:18 pm

Nonstop1h 57m

$121

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sun 5/24

3:30 pm-5:36 pm

Nonstop2h 06m

Dallas/Fort Worth

Tue 5/26

10:00 pm-11:57 pm

1 stop25h 57m

$124

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 6/18

7:03 pm-9:00 pm

Nonstop1h 57m

Dallas/Fort Worth

Thu 6/25

4:21 pm-6:18 pm

Nonstop1h 57m

$125

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 5/30

4:19 pm-7:50 am

1 stop15h 31m

Dallas/Fort Worth

Sat 6/6

12:00 pm-1:55 pm

Nonstop1h 55m

$127

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 6/6

3:25 pm-5:31 pm

Nonstop2h 06m

Dallas/Fort Worth

Wed 6/10

9:14 am-7:23 pm

1 stop10h 09m

$129

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 6/3

4:19 pm-7:50 am

1 stop15h 31m

Dallas/Fort Worth

Wed 6/10

4:21 pm-6:18 pm

Nonstop1h 57m

$130

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 6/5

9:06 pm-5:41 am

1 stop8h 35m

Dallas/Fort Worth

Sun 6/7

12:36 pm-2:31 pm

Nonstop1h 55m

$134

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 6/24

8:08 pm-8:09 am

1 stop12h 01m

Dallas/Fort Worth

Sat 6/27

4:37 pm-6:34 pm

Nonstop1h 57m

$135

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 6/6

3:25 pm-5:31 pm

Nonstop2h 06m

Dallas/Fort Worth

Tue 6/9

10:59 pm-6:08 pm

1 stop19h 09m

$136

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 5/26

8:08 pm-1:01 pm

1 stop16h 53m

Dallas/Fort Worth

Thu 5/28

12:36 pm-2:31 pm

Nonstop1h 55m

$138

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 September. 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 September, then August is your next best option. Flight prices from St. Louis to Dallas/Fort Worth Airport during August average around $194.

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 $479. 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 $639.

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 $398 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 $699 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 $280 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 $192 on momondo.

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 May 2026, prices for St. Louis to Dallas/Fort Worth Airport flights are approximately 9% 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 40m

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 $368.
The fastest flight from St. Louis to Dallas/Fort Worth Airport takes 1h 40m
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 40m 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
2,965 reviews
Search Frontier flights
SouthwestPriceFrom $157Free CancellationRating
7.9
4,305 reviews
Search Southwest flights
American AirlinesPriceFrom $168Free CancellationRating
7.1
11,668 reviews
Search American Airlines flights
JetBluePriceFrom $181Free CancellationRating
7.1
2,977 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 36 flights on this route every week with an average price of $300. 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 2,965 reviews) operates around 1 flight from St. Louis to Dallas/Fort Worth Airport in any given week. The average Frontier airfare for this route is around $153, 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
Frisco
Irving
Grapevine
Denton
Thackerville
Grand Prairie
McKinney
Garland
Durant
Richardson
Lewisville
Rockwall
Addison
Allen
Mansfield
Burleson
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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