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Cheap flights from St. Louis to Dallas from $56

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 1/28. 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

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Frontier Logo
1:16 pm - 6:08 amSTL-DFW
16h 52m1 stop
Frontier Logo
2:40 pm - 10:33 pmDFW-STL
7h 53m1 stop
$136Frontier
Find Deal
Mon, Dec 15 - Wed, Jan 7
Frontier Logo
3:46 pm - 11:07 pmSTL-DFW
7h 21m1 stop
Frontier Logo
7:00 am - 12:50 pmDFW-STL
5h 50m1 stop
$144Frontier
Find Deal
Sat, Jan 31 - Mon, Feb 2
Frontier Logo
7:43 pm - 9:44 amSTL-DFW
14h 01m1 stop
Frontier Logo
9:59 pm - 10:02 amDFW-STL
12h 03m1 stop
$148Frontier
Find Deal
Wed, Dec 17 - Fri, Jan 9
Frontier Logo
10:47 am - 10:54 pmSTL-DFW
12h 07m1 stop
Frontier Logo
9:59 pm - 10:02 amDFW-STL
12h 03m1 stop
$153Frontier
Find Deal
Mon, Dec 15 - Fri, Jan 9
Frontier Logo
7:43 pm - 9:44 amSTL-DFW
14h 01m1 stop
Frontier Logo
9:59 pm - 10:02 amDFW-STL
12h 03m1 stop
$154Frontier
Find Deal
Wed, Dec 17 - Sun, Jan 11
Frontier Logo
3:30 pm - 8:15 amSTL-DFW
16h 45m1 stop
Frontier Logo
2:40 pm - 10:33 pmDFW-STL
7h 53m1 stop
$157Frontier
Find Deal
Mon, Dec 15 - Wed, Jan 7
Frontier Logo
3:30 pm - 8:15 amSTL-DFW
16h 45m1 stop
Frontier Logo
2:40 pm - 10:33 pmDFW-STL
7h 53m1 stop
$161Frontier
Find Deal
Tue, Dec 16 - Wed, Jan 7
Frontier Logo
3:43 pm - 10:59 pmSTL-DFW
7h 16m1 stop
Frontier Logo
1:08 pm - 10:33 pmDFW-STL
9h 25m1 stop
$162Frontier
Find Deal
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
3:30 pm - 8:15 amSTL-DFW
16h 45m1 stop
Frontier Logo
10:38 pm - 12:12 pmDFW-STL
13h 34m1 stop
$163Frontier
Find Deal
Tue, Dec 9 - Wed, Dec 10
Frontier Logo
10:10 pm - 5:43 amSTL-DFW
7h 33m1 stop
Frontier Logo
10:49 pm - 9:45 amDFW-STL
10h 56m1 stop
$164Frontier
Find Deal
Tue, Dec 23 - Sun, Dec 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
Dec 15
STL1:16 pmLambert-St Louis
16h 52m
1 stop
DFW6:08 amDallas/Fort Worth
Jan 7
DFW2:40 pmDallas/Fort Worth
7h 53m
1 stop
STL10:33 pmLambert-St Louis
$136
Find similar
Frontier
Jan 31
STL3:46 pmLambert-St Louis
7h 21m
1 stop
DFW11:07 pmDallas/Fort Worth
Feb 2
DFW7:00 amDallas/Fort Worth
5h 50m
1 stop
STL12:50 pmLambert-St Louis
$144
Find similar
Frontier
Dec 17
STL7:43 pmLambert-St Louis
14h 01m
1 stop
DFW9:44 amDallas/Fort Worth
Jan 9
DFW9:59 pmDallas/Fort Worth
12h 03m
1 stop
STL10:02 amLambert-St Louis
$148
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
Dec 16
STL7:00 amLambert-St Louis
2h 16m
DFW9:16 amDallas/Fort Worth
Dec 24
DFW5:40 pmDallas/Fort Worth
1h 42m
STL7:22 pmLambert-St Louis
$216
Find similar
American Airlines
Feb 20
STL5:55 pmLambert-St Louis
2h 09m
DFW8:04 pmDallas/Fort Worth
Feb 22
DFW9:10 pmDallas/Fort Worth
1h 44m
STL10:54 pmLambert-St Louis
$219
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 November 29, 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

Mon 12/15

1:16 pm-6:08 am

1 stop16h 52m

Dallas/Fort Worth

Wed 1/7

2:40 pm-10:33 pm

1 stop7h 53m

$136

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 1/31

3:46 pm-11:07 pm

1 stop7h 21m

Dallas/Fort Worth

Mon 2/2

7:00 am-12:50 pm

1 stop5h 50m

$144

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 12/17

7:43 pm-9:44 am

1 stop14h 01m

Dallas/Fort Worth

Fri 1/9

9:59 pm-10:02 am

1 stop12h 03m

$148

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Mon 12/15

10:47 am-10:54 pm

1 stop12h 07m

Dallas/Fort Worth

Fri 1/9

9:59 pm-10:02 am

1 stop12h 03m

$153

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 12/17

7:43 pm-9:44 am

1 stop14h 01m

Dallas/Fort Worth

Sun 1/11

9:59 pm-10:02 am

1 stop12h 03m

$154

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Mon 12/15

3:30 pm-8:15 am

1 stop16h 45m

Dallas/Fort Worth

Wed 1/7

2:40 pm-10:33 pm

1 stop7h 53m

$157

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 12/16

3:30 pm-8:15 am

1 stop16h 45m

Dallas/Fort Worth

Wed 1/7

2:40 pm-10:33 pm

1 stop7h 53m

$161

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 1/8

3:43 pm-10:59 pm

1 stop7h 16m

Dallas/Fort Worth

Mon 1/12

1:08 pm-10:33 pm

1 stop9h 25m

$162

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 12/9

3:30 pm-8:15 am

1 stop16h 45m

Dallas/Fort Worth

Wed 12/10

10:38 pm-12:12 pm

1 stop13h 34m

$163

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 12/23

10:10 pm-5:43 am

1 stop7h 33m

Dallas/Fort Worth

Sun 12/28

10:49 pm-9:45 am

1 stop10h 56m

$164

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 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 $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 $490. 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 $620.

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 $386 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 $632 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 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 $278 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 $230 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 November 2025, prices for St. Louis to Dallas/Fort Worth Airport flights are approximately 30% 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

$156

Fastest flight time

1h 45m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from St. Louis in the past 72 hours is $156. The best round-trip flight deal from St. Louis to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $374.
The fastest flight from St. Louis to Dallas/Fort Worth Airport takes 1h 45m
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. 2h 09m 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
5.8
3,100 reviews
Search Frontier flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,011 reviews
Search Delta flights
SouthwestPriceFrom $162Free CancellationRating
8.0
4,255 reviews
Search Southwest flights
American AirlinesPriceFrom $167Free CancellationRating
7.2
11,043 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 $167. Generally, American Airlines has 17 flights on this route every week with an average price of $314. 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
Plano
Grapevine
Irving
Denton
Thackerville
Grand Prairie
McKinney
Durant
Rockwall
Garland
Richardson
Lewisville
Addison
Ardmore
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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