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Cheap flights from St. Louis to Dallas from $64

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 2/21. 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
2:09 pm - 11:01 pm
STL
-
DFW
8h 52m
1 stop
Frontier Logo
6:00 am - 1:34 pm
DFW
-
STL
7h 34m
1 stop
$198Frontier
Fri, Mar 6 - Fri, Mar 13
Frontier Logo
1:59 pm - 8:49 pm
STL
-
DFW
6h 50m
1 stop
Frontier Logo
9:20 am - 6:51 am
DFW
-
STL
21h 31m
1 stop
$205Frontier
Fri, Feb 27 - Sun, Mar 1
Frontier Logo
2:09 pm - 11:01 pm
STL
-
DFW
8h 52m
1 stop
Frontier Logo
6:00 am - 1:34 pm
DFW
-
STL
7h 34m
1 stop
$209Frontier
Fri, Mar 6 - Fri, Mar 13
Frontier Logo
11:21 am - 11:05 pm
STL
-
DFW
11h 44m
1 stop
Frontier Logo
10:45 am - 11:19 pm
DFW
-
STL
12h 34m
1 stop
$210Frontier
Tue, Apr 7 - Tue, Apr 14
Frontier Logo
8:16 pm - 11:04 pm
STL
-
DFW
26h 48m
1 stop
Frontier Logo
4:35 pm - 11:25 pm
DFW
-
STL
6h 50m
1 stop
$211Frontier
Mon, Apr 6 - Sat, Apr 11
United Airlines Logo
6:00 am - 1:38 pm
STL
-
DFW
7h 38m
1 stop
United Airlines Logo
5:15 am - 9:23 am
DFW
-
STL
4h 08m
1 stop
$213United Airlines
Thu, Feb 19 - Thu, Feb 26
Multiple Airlines Logo
11:32 am - 12:58 am
STL
-
DFW
13h 26m
2 stops
Multiple Airlines Logo
8:40 pm - 1:34 pm
DFW
-
STL
16h 54m
1 stop
$218Multiple Airlines
Wed, Mar 11 - Sun, Mar 15
Southwest Logo
8:55 am - 10:45 am
STL
-
DAL
1h 50mnonstop
Southwest Logo
5:20 pm - 7:05 pm
DAL
-
STL
1h 45mnonstop
$231Southwest
Wed, Feb 18 - Wed, Feb 25
Southwest Logo
10:15 am - 1:20 pm
STL
-
DAL
3h 05m
1 stop
Southwest Logo
5:20 pm - 7:05 pm
DAL
-
STL
1h 45mnonstop
$237Southwest
Wed, Feb 18 - Wed, Feb 25
Delta Logo
7:10 am - 1:28 pm
STL
-
DAL
6h 18m
1 stop
Delta Logo
6:38 pm - 11:36 pm
DAL
-
STL
4h 58m
1 stop
$251Delta
Wed, Feb 11 - Tue, Feb 17

United Airlines flights from St. Louis to Dallas

Our best United Airlines deals on St. Louis to Dallas flight tickets
United Airlines
Feb 19
STL6:00 amLambert-St Louis
7h 38m
1 stop
DFW1:38 pmDallas/Fort Worth
Feb 26
DFW5:15 amDallas/Fort Worth
4h 08m
1 stop
STL9:23 amLambert-St Louis
$213
United Airlines
Feb 19
STL7:41 amLambert-St Louis
8h 17m
2 stops
DFW3:58 pmDallas/Fort Worth
Feb 26
DFW5:15 amDallas/Fort Worth
4h 08m
1 stop
STL9:23 amLambert-St Louis
$239
United Airlines
Apr 16
STL6:00 amLambert-St Louis
6h 23m
1 stop
DFW12:23 pmDallas/Fort Worth
Apr 18
DFW5:15 amDallas/Fort Worth
7h 07m
2 stops
STL12:22 pmLambert-St Louis
$245

Frontier flights from St. Louis to Dallas

Our best Frontier deals on St. Louis to Dallas flight tickets
Frontier
Mar 6
STL2:09 pmLambert-St Louis
8h 52m
1 stop
DFW11:01 pmDallas/Fort Worth
Mar 13
DFW6:00 amDallas/Fort Worth
7h 34m
1 stop
STL1:34 pmLambert-St Louis
$198
Frontier
Feb 27
STL1:59 pmLambert-St Louis
6h 50m
1 stop
DFW8:49 pmDallas/Fort Worth
Mar 1
DFW9:20 amDallas/Fort Worth
21h 31m
1 stop
STL6:51 amLambert-St Louis
$205
Frontier
Mar 6
STL2:09 pmLambert-St Louis
8h 52m
1 stop
DFW11:01 pmDallas/Fort Worth
Mar 13
DFW6:00 amDallas/Fort Worth
7h 34m
1 stop
STL1:34 pmLambert-St Louis
$209

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 January 22, 2026.
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

Fri 3/6

2:09 pm-11:01 pm

1 stop8h 52m

Dallas/Fort Worth

Fri 3/13

6:00 am-1:34 pm

1 stop7h 34m

$198

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 2/27

1:59 pm-8:49 pm

1 stop6h 50m

Dallas/Fort Worth

Sun 3/1

9:20 am-6:51 am

1 stop21h 31m

$205

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 3/6

2:09 pm-11:01 pm

1 stop8h 52m

Dallas/Fort Worth

Fri 3/13

6:00 am-1:34 pm

1 stop7h 34m

$209

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 4/7

11:21 am-11:05 pm

1 stop11h 44m

Dallas/Fort Worth

Tue 4/14

10:45 am-11:19 pm

1 stop12h 34m

$210

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Mon 4/6

8:16 pm-11:04 pm

1 stop26h 48m

Dallas/Fort Worth

Sat 4/11

4:35 pm-11:25 pm

1 stop6h 50m

$211

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 2/19

6:00 am-1:38 pm

1 stop7h 38m

Dallas/Fort Worth

Thu 2/26

5:15 am-9:23 am

1 stop4h 08m

$213

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 3/11

11:32 am-12:58 am

2 stops13h 26m

Dallas/Fort Worth

Sun 3/15

8:40 pm-1:34 pm

1 stop16h 54m

$218

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Wed 2/18

8:55 am-10:45 am

Nonstop1h 50m

Dallas Love Field

Wed 2/25

5:20 pm-7:05 pm

Nonstop1h 45m

$231

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Wed 2/18

10:15 am-1:20 pm

1 stop3h 05m

Dallas Love Field

Wed 2/25

5:20 pm-7:05 pm

Nonstop1h 45m

$237

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Wed 2/11

7:10 am-1:28 pm

1 stop6h 18m

Dallas Love Field

Tue 2/17

6:38 pm-11:36 pm

1 stop4h 58m

$251

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 August, then departing from St. Louis during the month September is also very affordable. Most momondo users find prices during this month for around $194.

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 Thursday. momondo users have found tickets for Thursday departures for as low as $494. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $646.

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 $405 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to Dallas, so prices are often more expensive at around $694 per ticket.

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

Fly from Lambert-St Louis to Dallas/Fort Worth 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 $274 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 $192 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

3 airports
The fastest flight from St. Louis to Dallas takes 1h 40m
Direct flights go from St. Louis to Dallas every day.
There are 3 airports in Dallas. From St. Louis there are direct flights to 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 $67Free CancellationRating
5.7
3,057 reviews
Search Frontier flights
DeltaPriceFrom $118Free CancellationRating
7.9
8,087 reviews
Search Delta flights
SouthwestPriceFrom $158Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
American AirlinesPriceFrom $168Free CancellationRating
7.2
11,174 reviews
Search American Airlines 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