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$68+ Cheap flights from St. Louis (STL) to Dallas

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DFW
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Lambert-St Louis to Dallas are usually found in September or July, booked 88 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from St. Louis to Dallas

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Dallas (A78). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2025.

Round-trip from

$198
(Priceline)

One-way from

$68
(Cheapflightsfares)

Popular in

February

Cheapest in

September

Average price

$325
From Lambert-St Louis to Dallas
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One-way flight from Lambert-St Louis to Dallas
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Highest demand for flights based on searches. 16% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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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 April 30, 2025.

This Orbitz deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/128:44 pmSTL - DFW
Nonstop1h 58mMultiple Airlines
Sun 6/155:30 amDFW - STL
1 stop11h 34mMultiple Airlines
Deal found 4/29$198
This Frontier deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/162:27 pmSTL - DFW
1 stop9h 25mFrontier
Sun 6/225:30 pmDFW - STL
Nonstop1h 54mFrontier
Deal found 4/29$200
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/219:29 amSTL - DFW
Nonstop2h 00mAmerican Airlines
Sun 5/258:09 amDFW - STL
Nonstop1h 45mAmerican Airlines
Deal found 4/29$246
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/178:35 pmSTL - DAL
Nonstop1h 40mSouthwest
Tue 7/227:30 pmDAL - STL
Nonstop1h 40mSouthwest
Deal found 4/29$246
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/125:30 pmSTL - DAL
1 stop6h 29mDelta
Sun 6/1510:05 amDAL - STL
1 stop4h 32mDelta
Deal found 4/29$257
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/221:29 pmSTL - DFW
1 stop5h 05mDelta
Wed 7/237:00 amDFW - STL
1 stop7h 37mDelta
Deal found 4/29$266
This Cheapflightsfares deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/206:12 pmSTL - DFW
1 stop6h 27mSpirit Airlines
Sun 6/225:30 amDFW - STL
1 stop11h 34mSpirit Airlines
Deal found 4/29$288
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/206:30 amSTL - DFW
2 stops11h 17mUnited Airlines
Tue 5/276:00 pmDFW - STL
1 stop5h 59mUnited Airlines
Deal found 4/28$350

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from St. Louis to Dallas that are best for you.

Fly from

St. Louis

Fly to

Dallas

Route

Depart

Return

Price

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 6/12

8:44 pm-10:42 pm

Nonstop1h 58m

Dallas/Fort Worth

Sun 6/15

5:30 am-5:04 pm

1 stop11h 34m

$198

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Mon 6/16

2:27 pm-11:52 pm

1 stop9h 25m

Dallas/Fort Worth

Sun 6/22

5:30 pm-7:24 pm

Nonstop1h 54m

$200

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Wed 5/21

9:29 am-11:29 am

Nonstop2h 00m

Dallas/Fort Worth

Sun 5/25

8:09 am-9:54 am

Nonstop1h 45m

$246

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Thu 7/17

8:35 pm-10:15 pm

Nonstop1h 40m

Dallas Love Field

Tue 7/22

7:30 pm-9:10 pm

Nonstop1h 40m

$246

St. LouisDallas

STL - DAL

STLDAL

Lambert-St Louis

Thu 6/12

5:30 pm-11:59 pm

1 stop6h 29m

Dallas Love Field

Sun 6/15

10:05 am-2:37 pm

1 stop4h 32m

$257

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 7/22

1:29 pm-6:34 pm

1 stop5h 05m

Dallas/Fort Worth

Wed 7/23

7:00 am-2:37 pm

1 stop7h 37m

$266

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 6/20

6:12 pm-12:39 am

1 stop6h 27m

Dallas/Fort Worth

Sun 6/22

5:30 am-5:04 pm

1 stop11h 34m

$288

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Tue 5/20

6:30 am-5:47 pm

2 stops11h 17m

Dallas/Fort Worth

Tue 5/27

6:00 pm-11:59 pm

1 stop5h 59m

$350

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Thu 6/12

8:44 pm-10:42 pm

Nonstop1h 58m

$68

St. LouisDallas

STL - DFW

STLDFW

Lambert-St Louis

Fri 6/13

6:12 pm-12:39 am

1 stop6h 27m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 17 results
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The best insider tips for St. Louis to Dallas flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
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

STL security lines average 5 to 10 minutes off-peak. Check real-time wait times online to plan your arrival efficiently.

Read more about STLby Taryn White
DFW

DFW offers a DART Orange Line connecting downtown Dallas to Terminal A, providing convenient access to the city.

Read more about DFWby Chris Dong
DAL

DAL is just a 20-minute drive from downtown Dallas, offering quick access via rideshares or public transit.

Read more about DALby Paul Rubio
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Southwest and Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Chris Dong

Chris Dong

Expert on DFW

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more
Paul Rubio

Paul Rubio

Expert on DAL

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Dallas. Price data was last updated on April 25, 2025.

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?

Find hourly flight availability from St. Louis to Dallas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

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 at noon, which can drop the price by up to 31% versus a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Dallas. Price data was last updated on December 16, 2024.

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

Weekly flight availability from St. Louis to Dallas

Explore weekly flight availability from St. Louis to Dallas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 30, 2025.

The most flights from STL to A78 are scheduled on a Tuesday (32 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (14 on average).

Rainfall in Dallas by month

Plan your trip to Dallas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dallas ranges from 1.9 - 4.9 inches per month. May is typically the wettest month, when rainfall can reach 4.9 in. August is typically the driest time to visit Dallas when rainfall is around 1.9 in.

Temperature in Dallas by month

Plan your trip to Dallas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 86.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 46.4 F).

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dallas. Reviews last updated April 30, 2025.
To help decide which airline to fly from St. Louis to Dallas, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Boarding

8.2

Food

7.1

Crew

8.5

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Dallas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Dallas?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Dallas. 4 airlines have flights from Lambert-St Louis to Dallas on a regular basis. Booking flights from Lambert-St Louis to Dallas should not be difficult; the airport handles an average of 22 outbound flights to Dallas per day.

  • What are the cheapest airlines flying from St. Louis to Dallas round-trip?

    Flying on Frontier is currently your cheapest option to Dallas, with prices starting at $199. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $237 and $246, respectively. You may be able to fly from St. Louis to Dallas for 27% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from St. Louis to Dallas one-way?

    The cheapest airlines for a one-way flight from St. Louis to Dallas are Frontier ($68), Spirit Airlines ($118), and American Airlines ($119).

  • What are the most reliable airlines from St. Louis to Dallas?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from St. Louis to Dallas on time: Japan Airlines (78%), Gulf Air (78%), Alaska Airlines (76%).

  • What are the cheapest flights from St. Louis to Dallas?

    Looking at all options, your cheapest flight can be booked for $125. While the most popular route (Lambert-St Louis - Dallas/Fort Worth) can be booked for $183 on average our data indicates $1,017 when flying from St. Louis to Dallas.

  • Can I find deals for flights from St. Louis to Dallas that include hotel bookings?

    Yes. In addition to deals on St. Louis to Dallas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Dallas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Dallas.

  • Can I find deals for business class flights from St. Louis to Dallas?

    Yes. Cheapflights offers flight deals from St. Louis to Dallas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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.

See more FAQs

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Alternative routes for St. Louis to Dallas

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Dallas

Discover the top 4 airlines that operate flights from St. Louis to Dallas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$46Average$123FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$171Average$352FlexibilityNo cancel feeOn-time71%
DeltaCheapest$196Average$328FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$310FlexibilityNo cancel feeOn-time63%

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