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

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — STL
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas to Lambert-St Louis are usually found in August or June, booked 75 days in advance, depart on a Monday or Thursday and return on a Friday

Cheap flight deals from Dallas to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) to St. Louis (STL). 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 July 3, 2025.

Round-trip from

$115
(Frontier)

One-way from

$70
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$233
From Dallas to Lambert-St Louis
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One-way flight from Dallas to Lambert-St Louis
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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. 3% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Dallas to St. Louis

Cheapest flights from Dallas to St. Louis
Explore the most affordable flight options available from Dallas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Frontier deal was found by Cheapflights users on 7/3. 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.
Fri 10/103:00 pmDFW - STL
Nonstop1h 52mFrontier
Sun 10/129:47 amSTL - DFW
Nonstop1h 57mFrontier
Deal found 7/3$115
This American Airlines deal was found by Cheapflights users on 7/3. 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 9/34:36 pmDFW - STL
Nonstop1h 47mAmerican Airlines
Thu 9/45:18 amSTL - DFW
Nonstop1h 56mAmerican Airlines
Deal found 7/3$148
This Southwest deal was found by Cheapflights users on 7/2. 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.
Tue 7/299:50 amDAL - STL
Nonstop1h 45mSouthwest
Wed 8/64:35 pmSTL - DAL
Nonstop1h 40mSouthwest
Deal found 7/2$149
This Priceline deal was found by Cheapflights users on 7/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/125:25 amDFW - STL
1 stop11h 06mMultiple Airlines
Thu 8/142:36 pmSTL - DFW
1 stop7h 22mMultiple Airlines
Deal found 7/1$158
This Priceline deal was found by Cheapflights users on 7/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:45 amDFW - STL
1 stop6h 47mSpirit Airlines
Sun 8/242:30 pmSTL - DFW
1 stop5h 14mSpirit Airlines
Deal found 7/2$176
This Delta deal was found by Cheapflights users on 7/2. 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 10/143:35 pmDFW - STL
1 stop6h 24mDelta
Tue 10/217:20 amSTL - DFW
1 stop5h 05mDelta
Deal found 7/2$197
This Delta deal was found by Cheapflights users on 7/3. 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.
Fri 9/196:29 pmDAL - STL
1 stop4h 55mDelta
Mon 9/226:42 pmSTL - DAL
1 stop5h 07mDelta
Deal found 7/3$268

Cheapflights Fare Finder

Customize your flight search to find flights from Dallas to St. Louis 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 July 3, 2025.
Use the filters below to find and compare flights from Dallas to St. Louis that are best for you.

Fly from

Dallas

Fly to

St. Louis

Route

Depart

Return

Price

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Wed 9/3

4:36 pm-6:23 pm

Nonstop1h 47m

Lambert-St Louis

Thu 9/4

5:18 am-7:14 am

Nonstop1h 56m

$148

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 7/24

6:00 am-1:42 pm

1 stop7h 42m

Lambert-St Louis

Sun 7/27

7:54 pm-9:50 pm

Nonstop1h 56m

$149

DallasSt. Louis

DAL - STL

DALSTL

Dallas Love Field

Tue 7/29

9:50 am-11:35 am

Nonstop1h 45m

Lambert-St Louis

Wed 8/6

4:35 pm-6:15 pm

Nonstop1h 40m

$149

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Tue 8/12

5:25 am-4:31 pm

1 stop11h 06m

Lambert-St Louis

Thu 8/14

2:36 pm-9:58 pm

1 stop7h 22m

$158

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 8/21

6:45 am-1:32 pm

1 stop6h 47m

Lambert-St Louis

Sun 8/24

2:30 pm-7:44 pm

1 stop5h 14m

$176

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Mon 8/4

4:25 pm-11:53 pm

1 stop7h 28m

Lambert-St Louis

Wed 8/6

9:27 am-3:20 pm

1 stop5h 53m

$197

DallasSt. Louis

DAL - STL

DALSTL

Dallas Love Field

Fri 9/19

6:29 pm-11:24 pm

1 stop4h 55m

Lambert-St Louis

Mon 9/22

6:42 pm-11:49 pm

1 stop5h 07m

$268

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Tue 9/16

10:00 am-11:52 am

Nonstop1h 52m

$70

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 9/25

5:45 am-3:04 pm

1 stop9h 19m

$71

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Thu 9/11

6:45 am-1:35 pm

1 stop6h 50m

$77

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 14 results
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The best insider tips for Dallas to St. Louis 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 Dallas to St. Louis trip
Airports
DFW

DFW's Terminal A offers gourmet burgers, Asian fusion, and a mini spa, perfect for a quick bite or relaxation before your flight.

Read more about DFWby Chris Dong
DAL

DAL offers a streamlined experience with quick security lines and a straightforward layout, making it ideal for domestic travelers.

Read more about DALby Paul Rubio
STL

MetroLink offers a convenient and economical way to reach downtown St. Louis from STL, ideal for travelers with minimal luggage.

Read more about STLby Taryn White
Our travel experts
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 Dallas to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Dallas 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 Dallas to St. Louis

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

Use this chart to determine the optimal time to book a round-trip flight from Dallas to St. Louis. Price data was last updated on June 27, 2025.

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Dallas to St. Louis (average of $311). Flying from Dallas to St. Louis in March is currently the most expensive (average of $356). 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 DFW to STL?

Find hourly flight availability from Dallas to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

A simple way to save on the total cost of your ticket is to fly from Dallas to St. Louis in the afternoon. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight at noon.

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

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

Travelers seeking maximum savings on their Dallas to St. Louis flight should consider departing on Monday mornings 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 Dallas to St. Louis

Explore weekly flight availability from Dallas to St. Louis. 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 July 3, 2025.

The most flights from A78 to STL are scheduled on a Wednesday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Dallas to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
Southwest
8.0
Very good
4,266 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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
7,982 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.
United Airlines
7.4
Good
8,861 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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
8,086 reviews
Southwest
8.0
Very good
4,266 reviews

Comfort

8.0

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.6

Boarding

8.2

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.

Related info for your journey

Find useful and relevant information for your journey from Dallas to St. Louis. 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 into for flights to St. Louis from Dallas?

    Most people fly into Lambert-St Louis (STL) if they book a flight to St. Louis from Dallas. On average, Lambert-St Louis has 16 inbound flights from Dallas per day from 4 airlines. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $115. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $148 and $149, respectively. Frontier is priced at 59% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $70. However, be on the lookout for offers from Frontier and Spirit Airlines, as they are both options that can get you from Dallas to St. Louis for a low price.

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

    The top 3 most reliable airlines when flying from Dallas to St. Louis are Frontier (83%), GOL (80%) and Envoy Air (79%).

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

    The cheapest flight price from Dallas to St. Louis is $61. On average you can expect to pay $183. The most popular route, (Dallas/Fort Worth - Lambert-St Louis), can usually be booked for $136.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dallas to St. Louis 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 Dallas to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Dallas to St. Louis (average of $311). Flying from Dallas to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
O'Fallon
Maryland Heights
Fairview Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Festus
Chesterfield
Farmington

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Alternative routes for Dallas to St. Louis

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

Discover the top 4 airlines that operate flights from Dallas to St. Louis. 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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$170FlexibilityNo cancel feeOn-time62%
DeltaCheapest$103Average$196FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$453FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$197Average$317FlexibilityNo cancel feeOn-time63%

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