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Cheap flights from St. Louis to Dallas from $38

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 9/28. 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

Frontier Logo
10:39 am - 12:29 pmSTL-DFW
1h 50mnonstop
Frontier Logo
10:45 pm - 4:03 pmDFW-STL
17h 18m1 stop
$119Frontier
Find Deal
Sun, Sep 21 - Fri, Sep 26
Frontier Logo
9:35 pm - 5:45 amSTL-DFW
8h 10m1 stop
Frontier Logo
8:00 am - 9:54 amDFW-STL
1h 54mnonstop
$121Frontier
Find Deal
Fri, Sep 19 - Sun, Sep 21
Frontier Logo
9:59 pm - 5:43 amSTL-DFW
7h 44m1 stop
Frontier Logo
7:30 am - 9:22 amDFW-STL
1h 52mnonstop
$122Frontier
Find Deal
Fri, Oct 10 - Sun, Oct 12
Southwest Logo
7:10 pm - 8:55 pmSTL-DAL
1h 45mnonstop
Southwest Logo
8:35 am - 10:15 amDAL-STL
1h 40mnonstop
$139Southwest
Find Deal
Tue, Oct 21 - Tue, Oct 28
American Airlines Logo
8:49 am - 10:46 amSTL-DFW
1h 57mnonstop
American Airlines Logo
7:00 am - 8:53 amDFW-STL
1h 53mnonstop
$139American Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
American Airlines Logo
3:59 pm - 5:55 pmSTL-DFW
1h 56mnonstop
American Airlines Logo
4:45 pm - 6:29 pmDFW-STL
1h 44mnonstop
$140American Airlines
Find Deal
Sat, Oct 4 - Sat, Oct 11
Southwest Logo
6:10 am - 7:50 amSTL-DAL
1h 40mnonstop
Southwest Logo
9:10 am - 10:55 amDAL-STL
1h 45mnonstop
$154Southwest
Find Deal
Wed, Sep 17 - Wed, Sep 24
Logo
10:57 am - 12:09 amSTL-DFW
13h 12m1 stop
Logo
7:40 am - 9:32 amDFW-STL
1h 52mnonstop
$158
Find Deal
Tue, Oct 21 - Mon, Oct 27
Delta Logo
3:59 pm - 8:42 pmSTL-DAL
4h 43m1 stop
Delta Logo
11:40 am - 6:02 pmDAL-STL
6h 22m1 stop
$197Delta
Find Deal
Sat, Oct 18 - Wed, Oct 29
Delta Logo
7:05 am - 1:29 pmSTL-DAL
6h 24m1 stop
Delta Logo
6:39 pm - 11:41 pmDAL-STL
5h 02m1 stop
$207Delta
Find Deal
Sat, Oct 18 - Mon, Oct 27

American Airlines flights from St. Louis to Dallas

Our best American Airlines deals on St. Louis to Dallas flight tickets
American Airlines
Oct 7
STL8:49 amLambert-St Louis
1h 57m
DFW10:46 amDallas/Fort Worth
Oct 11
DFW7:00 amDallas/Fort Worth
1h 53m
STL8:53 amLambert-St Louis
$139
Find similar
American Airlines
Oct 4
STL3:59 pmLambert-St Louis
1h 56m
DFW5:55 pmDallas/Fort Worth
Oct 11
DFW4:45 pmDallas/Fort Worth
1h 44m
STL6:29 pmLambert-St Louis
$140
Find similar
American Airlines
Sep 17
STL5:18 amLambert-St Louis
1h 56m
DFW7:14 amDallas/Fort Worth
Sep 24
DFW1:27 pmDallas/Fort Worth
1h 42m
STL3:09 pmLambert-St Louis
$154
Find similar

Frontier flights from St. Louis to Dallas

Our best Frontier deals on St. Louis to Dallas flight tickets
Frontier
Aug 28
STL10:17 amLambert-St Louis
1h 56m
DFW12:13 pmDallas/Fort Worth
Aug 31
DFW7:25 amDallas/Fort Worth
1h 53m
STL9:18 amLambert-St Louis
$116
Find similar
Frontier
Sep 21
STL10:39 amLambert-St Louis
1h 50m
DFW12:29 pmDallas/Fort Worth
Sep 26
DFW10:45 pmDallas/Fort Worth
17h 18m
1 stop
STL4:03 pmLambert-St Louis
$119
Find similar
Frontier
Sep 19
STL9:35 pmLambert-St Louis
8h 10m
1 stop
DFW5:45 amDallas/Fort Worth
Sep 21
DFW8:00 amDallas/Fort Worth
1h 54m
STL9:54 amLambert-St Louis
$121
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Dallas 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 August 21, 2025.
Use the filters below to find and compare flights from St. Louis to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sun 9/21

10:39 am-12:29 pm

Nonstop1h 50m

Dallas/Fort Worth

Fri 9/26

10:45 pm-4:03 pm

1 stop17h 18m

$119

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 9/19

9:35 pm-5:45 am

1 stop8h 10m

Dallas/Fort Worth

Sun 9/21

8:00 am-9:54 am

Nonstop1h 54m

$121

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 10/10

9:59 pm-5:43 am

1 stop7h 44m

Dallas/Fort Worth

Sun 10/12

7:30 am-9:22 am

Nonstop1h 52m

$122

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Tue 10/21

7:10 pm-8:55 pm

Nonstop1h 45m

Dallas Love Field

Tue 10/28

8:35 am-10:15 am

Nonstop1h 40m

$139

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

7:00 am-8:53 am

Nonstop1h 53m

$139

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Sat 10/4

3:59 pm-5:55 pm

Nonstop1h 56m

Dallas/Fort Worth

Sat 10/11

4:45 pm-6:29 pm

Nonstop1h 44m

$140

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Wed 9/17

6:10 am-7:50 am

Nonstop1h 40m

Dallas Love Field

Wed 9/24

9:10 am-10:55 am

Nonstop1h 45m

$154

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 10/21

10:57 am-12:09 am

1 stop13h 12m

Dallas/Fort Worth

Mon 10/27

7:40 am-9:32 am

Nonstop1h 52m

$158

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Sat 10/18

3:59 pm-8:42 pm

1 stop4h 43m

Dallas Love Field

Wed 10/29

11:40 am-6:02 pm

1 stop6h 22m

$197

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Sat 10/18

7:05 am-1:29 pm

1 stop6h 24m

Dallas Love Field

Mon 10/27

6:39 pm-11:41 pm

1 stop5h 02m

$207

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

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?

If you are unable to visit Dallas during the month of September, then departing from St. Louis during the month August is also very affordable. Most momondo users find prices during this month for around $208.

What is the cheapest day to depart on your flight to Dallas?

On average, the least expensive day to fly to Dallas from St. Louis is on a Friday. momondo users have found tickets for Friday departures for as low as $479. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from St. Louis because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $634.

What is the cheapest time of day to depart on your flight to Dallas?

Flying to Dallas from St. Louis in the evening is the least expensive time of day to depart. momondo users have found prices as low as $343 when looking at flights departing in the evening. At noon is when there is more demand to fly to Dallas, so prices are often more expensive at around $539 per ticket.

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

Fly from Lambert-St Louis to Dallas Love Field for the best Lambert-St Louis - Dallas flight prices

How far in advance should I book a flight to Dallas?

You are more likely to see cheaper flights to Dallas from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas 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 from St. Louis for as low as $215 on momondo.

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

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

Cheap St. Louis to Dallas flight deals and tips

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

Fastest flight time

1h 40m

Direct flights

Every day

Airports in Dallas

2 airports
The fastest flight from St. Louis to Dallas takes 1h 40m
Direct flights go from St. Louis to Dallas every day.
There are 2 airports near Dallas: Dallas/Fort Worth (DFW), Dallas Love Field (DAL)
Search flight deals

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

    There are 547.5 mi between Lambert-St Louis and Dallas. Flights usually cover this in 1h 40m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Lambert-St Louis Airport to Dallas refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, 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.

  • What documentation or ID do you need to fly to Dallas?

    The required travel and health documents for your Dallas trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dallas. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from St. Louis to Dallas

Compare and see reviews for airlines that fly from St. Louis to Dallas with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $60Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
American AirlinesPriceFrom $173Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $174Free CancellationRating
8.0
4,245 reviews
Search Southwest flights

Why use momondo?

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

It is quick and easy to find St. Louis to Dallas flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dallas that suits you.

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

Yes. momondo enables you to select and highlight flights to Dallas from St. Louis with this policy.

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

Once you have performed a search for St. Louis to Dallas flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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Find better results for your trip to the United States

Fly into one of these airports located in Dallas

Airports listed have a maximum distance of 15.5 mi from Dallas
Dallas Love Field Airport
Dallas/Fort Worth Airport