$70+ Cheap flights from St. Louis (STL) to Dallas

One-way flight from Lambert-St Louis to Dallas

Highest demand for flights based on searches. 15% potential increase in price ($52 potential increase over avg. RT price).

Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

Average for round-trip flights in July 2025

Find flight deals from St. Louis to Dallas

Cheapest flights from St. Louis to Dallas
Explore the most affordable flight options available from St. Louis to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 29, 2025.

sáb. 9/275:18 amSTL - DFW

Nonstop1h 56mAmerican Airlines

sáb. 9/2710:00 amDFW - STL

Nonstop1h 52mAmerican Airlines

Deal found 7/27

$134

jue. 8/212:30 pmSTL - DFW

1 stop5h 14mSpirit Airlines

lun. 8/256:45 amDFW - STL

1 stop6h 47mSpirit Airlines

Deal found 7/27

$136

mié. 9/178:15 amSTL - DAL

Nonstop1h 40mSouthwest

mié. 9/249:10 amDAL - STL

Nonstop1h 45mSouthwest

Deal found 7/29

$139

jue. 10/2310:35 amSTL - DFW

1 stop13h 19mMultiple Airlines

dom. 10/267:00 amDFW - STL

Nonstop1h 52mMultiple Airlines

Deal found 7/28

$141

vie. 10/105:52 pmSTL - DFW

Nonstop1h 57mFrontier

dom. 10/127:00 amDFW - STL

Nonstop1h 52mFrontier

Deal found 7/29

$144

mar. 10/76:00 amSTL - DFW

1 stop6h 54mDelta

sáb. 10/1111:28 amDFW - STL

1 stop4h 47mDelta

Deal found 7/29

$197

mar. 10/711:21 amSTL - DAL

1 stop6h 33mDelta

sáb. 10/118:42 amDAL - STL

1 stop7h 33mDelta

Deal found 7/28

$197

Best flights from St. Louis to Dallas
Discover carefully curated flight deals from St. Louis to Dallas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 29, 2025.

sáb. 9/275:18 amSTL - DFW

Nonstop1h 56mAmerican Airlines

sáb. 9/2710:00 amDFW - STL

Nonstop1h 52mAmerican Airlines

Deal found 7/27

$134

jue. 8/212:30 pmSTL - DFW

1 stop5h 14mSpirit Airlines

lun. 8/256:45 amDFW - STL

1 stop6h 47mSpirit Airlines

Deal found 7/27

$136

mié. 9/178:15 amSTL - DAL

Nonstop1h 40mSouthwest

mié. 9/249:10 amDAL - STL

Nonstop1h 45mSouthwest

Deal found 7/29

$139

jue. 10/2310:35 amSTL - DFW

1 stop13h 19mMultiple Airlines

dom. 10/267:00 amDFW - STL

Nonstop1h 52mMultiple Airlines

Deal found 7/28

$141

vie. 10/105:52 pmSTL - DFW

Nonstop1h 57mFrontier

dom. 10/127:00 amDFW - STL

Nonstop1h 52mFrontier

Deal found 7/29

$144

mar. 10/76:00 amSTL - DFW

1 stop6h 54mDelta

sáb. 10/1111:28 amDFW - STL

1 stop4h 47mDelta

Deal found 7/29

$197

mar. 10/711:21 amSTL - DAL

1 stop6h 33mDelta

sáb. 10/118:42 amDAL - STL

1 stop7h 33mDelta

Deal found 7/28

$197

Last-minute flights from St. Louis to Dallas
Discover last-minute flight deals from St. Louis to Dallas. Data last updated julio 29, 2025 and is based on user searches.

mar. 8/55:40 pmSTL - DFW

1 stop16h 45mFrontier

sáb. 8/1611:22 amDFW - STL

1 stop12h 25mFrontier

Deal found 7/28

$285

mié. 8/611:24 amSTL - DFW

2 stops21h 00mSpirit Airlines

sáb. 8/99:10 pmDFW - STL

1 stop12h 42mSpirit Airlines

Deal found 7/27

$287

mié. 8/65:23 pmSTL - DAL

1 stop6h 21mDelta

mar. 8/128:30 amDAL - STL

1 stop6h 11mDelta

Deal found 7/28

$529

jue. 8/72:36 pmSTL - DFW

1 stop7h 22mMultiple Airlines

mar. 8/125:25 amDFW - STL

1 stop11h 06mMultiple Airlines

Deal found 7/28

$236

jue. 8/77:15 amSTL - DAL

Nonstop1h 40mSouthwest

mar. 8/192:45 pmDAL - STL

Nonstop1h 50mSouthwest

Deal found 7/29

$459

jue. 8/142:30 pmSTL - DFW

1 stop5h 14mMultiple Airlines

jue. 8/217:25 amDFW - STL

Nonstop1h 53mMultiple Airlines

Deal found 7/27

$151

mar. 8/197:01 amSTL - DFW

Nonstop1h 51mAmerican Airlines

mar. 8/1911:10 amDFW - STL

1 stop8h 11mAmerican Airlines

Deal found 7/26

$174

jue. 8/212:30 pmSTL - DFW

1 stop5h 14mSpirit Airlines

lun. 8/256:45 amDFW - STL

1 stop6h 47mSpirit Airlines

Deal found 7/27

$136

sáb. 8/231:26 pmSTL - DAL

1 stop7h 42mDelta

sáb. 8/3011:54 amDAL - STL

1 stop7h 13mDelta

Deal found 7/26

$237

jue. 8/2810:17 amSTL - DFW

Nonstop1h 56mFrontier

jue. 9/46:00 amDFW - STL

1 stop9h 04mFrontier

Deal found 7/29

$148

dom. 8/315:40 pmSTL - DAL

Nonstop1h 40mSouthwest

mié. 9/107:40 pmDAL - STL

Nonstop1h 45mSouthwest

Deal found 7/29

$192

One-way flights from St. Louis to Dallas
Search for one-way flight options from St. Louis to Dallas. Find affordable one-way fares based on user searches. Data last updated julio 29, 2025.

sáb. 9/68:50 amSTL - DFW

Nonstop1h 56mAmerican Airlines

Deal found 7/27

$70

sáb. 9/61:00 pmSTL - DAL

Nonstop1h 40mSouthwest

Deal found 7/28

$70

jue. 9/1812:05 pmSTL - DFW

1 stop7h 42mSpirit Airlines

Deal found 7/27

$73

jue. 9/1810:49 amSTL - DFW

Nonstop1h 50mFrontier

Deal found 7/28

$74

sáb. 9/2710:15 amSTL - DFW

1 stop4h 47mDelta

Deal found 7/29

$99

sáb. 9/2710:15 amSTL - DAL

1 stop4h 51mDelta

Deal found 7/29

$99

Fly from

Fly to

Route

Depart

Return

Price

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

sáb. 9/27

5:18 am-7:14 am

Nonstop1h 56m

Dallas/Fort Worth

sáb. 9/27

10:00 am-11:52 am

Nonstop1h 52m

$134

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

jue. 8/21

2:30 pm-7:44 pm

1 stop5h 14m

Dallas/Fort Worth

lun. 8/25

6:45 am-1:32 pm

1 stop6h 47m

$136

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

mié. 9/17

8:15 am-9:55 am

Nonstop1h 40m

Dallas Love Field

mié. 9/24

9:10 am-10:55 am

Nonstop1h 45m

$139

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

jue. 10/23

10:35 am-11:54 pm

1 stop13h 19m

Dallas/Fort Worth

dom. 10/26

7:00 am-8:52 am

Nonstop1h 52m

$141

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

vie. 10/10

5:52 pm-7:49 pm

Nonstop1h 57m

Dallas/Fort Worth

dom. 10/12

7:00 am-8:52 am

Nonstop1h 52m

$144

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

mar. 10/7

6:00 am-12:54 pm

1 stop6h 54m

Dallas/Fort Worth

sáb. 10/11

11:28 am-4:15 pm

1 stop4h 47m

$197

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

mar. 10/7

11:21 am-5:54 pm

1 stop6h 33m

Dallas Love Field

sáb. 10/11

8:42 am-4:15 pm

1 stop7h 33m

$197

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

sáb. 9/6

8:50 am-10:46 am

Nonstop1h 56m

$70

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

sáb. 9/6

1:00 pm-2:40 pm

Nonstop1h 40m

$70

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

jue. 9/18

12:05 pm-7:47 pm

1 stop7h 42m

$73

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 13 results

The best insider tips for St. Louis to Dallas flights

Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Dallas trip

Airlines

Southwest

Enjoy free snacks and non-alcoholic beverages, plus a free drink on special occasions.

Southwest offers two free checked bags, including oversized items like skis or golf clubs.

Read more about Southwestby Marisa Garcia

Frontier

Frontier's slimline seats are 17.7” wide, suitable for flights around 3 hours.

Consider early check-in to secure your place, as Frontier often overbooks flights.

Read more about Frontierby Marisa Garcia

Airports

STL

Security lines at STL are straightforward, averaging 5-10 minutes off-peak. Check real-time wait times online before heading to the airport.

DFW

DFW offers a DART Orange Line connecting downtown Dallas to Terminal A, providing a convenient public transport option.

DAL

DAL's proximity to downtown makes it a convenient choice, just a 20-minute drive from the city center.

Our travel experts

Marisa Garcia

Expert on Southwest and Frontier

Chris Dong

Expert on DFW

Taryn White

Expert on STL

Paul Rubio

Expert on DAL

Best time to book a flight from St. Louis to Dallas

Have a flexible travel schedule? Discover the best time to fly to Dallas from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Dallas

How far ahead should I book a flight from St. Louis to Dallas?

The price you pay for your flight from St. Louis to Dallas may vary depending on when you book. For the best chance of a lower fare, look to book 88 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Dallas?

Currently, August is the cheapest month in which you can book a flight from St. Louis to Dallas (average of $216). Flying from St. Louis to Dallas in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to DFW?

When flying from St. Louis to Dallas, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 44% versus a flight at noon.

What is the cheapest day to fly from St. Louis to Dallas?

Travelers seeking maximum savings on their St. Louis to Dallas flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from St. Louis to Dallas

The most flights from STL to A78 are scheduled on a Tuesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).

Reviews of airlines servicing Dallas

Peruse reviews from past customers who have flown with Southwest, Delta, and American Airlines from St. Louis to Dallas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

8.0

Very good

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,977 reviews

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

American Airlines

7.2

Good

10,000 reviews

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Spirit Airlines

6.3

Okay

8,040 reviews

8.0

Very good

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Frontier

5.9

Fair

3,238 reviews

8.0

Very good