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St. Louis

$63+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — STL
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas to Lambert-St Louis are usually found in August or July, booked 66 days in advance, depart on a Thursday or Sunday and return on a Thursday

Cheap 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 February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/49:55 am
DFW
-
STL
1 stop5h 58m
Frontier
Wed 3/1111:32 am
STL
-
DFW
1 stop5h 36m
Frontier
Deal found 2/2$131
This Frontier deal was found by Cheapflights users on 1/31. 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.
Sat 2/215:45 am
DFW
-
STL
1 stop8h 11m
Frontier
Wed 2/254:51 pm
STL
-
DFW
1 stop6h 14m
Frontier
Deal found 1/31$138
This Trip.com deal was found by Cheapflights users on 2/2. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
DFW
-
STL
1 stop6h 09m
Frontier
Tue 3/33:49 pm
STL
-
DFW
1 stop24h 35m
Frontier
Deal found 2/2$143
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/49:00 am
DFW
-
STL
1 stop13h 27m
Frontier
Tue 3/108:06 pm
STL
-
DFW
1 stop9h 41m
Frontier
Deal found 2/2$144
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:45 pm
DFW
-
STL
1 stop13h 06m
Frontier
Tue 3/104:51 pm
STL
-
DFW
1 stop22h 38m
Frontier
Deal found 2/1$146
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:40 pm
DFW
-
STL
1 stop10h 11m
Multiple Airlines
Tue 3/104:51 pm
STL
-
DFW
1 stop28h 09m
Multiple Airlines
Deal found 2/2$147
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:15 pm
DFW
-
STL
2 stops28h 44m
Multiple Airlines
Wed 3/1111:32 am
STL
-
DFW
1 stop11h 28m
Multiple Airlines
Deal found 2/2$151
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
DFW
-
STL
1 stop6h 09m
Frontier
Mon 3/98:12 pm
STL
-
DFW
1 stop15h 15m
Frontier
Deal found 2/1$157
This Kiwi.com deal was found by Cheapflights users on 1/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/228:40 pm
DFW
-
STL
1 stop10h 11m
Multiple Airlines
Tue 2/243:49 pm
STL
-
DFW
2 stops15h 13m
Multiple Airlines
Deal found 1/31$159
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:45 am
DFW
-
STL
1 stop8h 11m
Frontier
Sat 2/218:17 pm
STL
-
DFW
1 stop11h 58m
Frontier
Deal found 2/1$160
This Priceline deal was found by Cheapflights users on 2/2. 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.
Tue 4/148:36 pm
DFW
-
STL
1 stop10h 14m
Frontier
Fri 4/173:02 pm
STL
-
DFW
Nonstop2h 05m
Frontier
Deal found 2/2$161
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1111:06 am
DFW
-
STL
1 stop11h 21m
Multiple Airlines
Sat 2/148:17 pm
STL
-
DFW
1 stop11h 58m
Multiple Airlines
Deal found 2/1$162

Find 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 February 3, 2026.

Round-trip from

$131
(Kiwi.com)

One-way from

$63
(Super.com)

Popular in

March

Cheapest in

August

Average price

$336
From Dallas to Lambert-St Louis
Search Deals
One-way flight from Dallas to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 3, 2026.
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 3/4

9:55 am-3:53 pm

1 stop5h 58m

Lambert-St Louis

Wed 3/11

11:32 am-5:08 pm

1 stop5h 36m

$131

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sat 2/21

5:45 am-1:56 pm

1 stop8h 11m

Lambert-St Louis

Wed 2/25

4:51 pm-11:05 pm

1 stop6h 14m

$138

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Mon 3/2

7:00 am-1:09 pm

1 stop6h 09m

Lambert-St Louis

Tue 3/3

3:49 pm-4:24 pm

1 stop24h 35m

$143

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Wed 3/4

9:00 am-10:27 pm

1 stop13h 27m

Lambert-St Louis

Tue 3/10

8:06 pm-5:47 am

1 stop9h 41m

$144

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Tue 3/3

8:40 pm-6:51 am

1 stop10h 11m

Lambert-St Louis

Tue 3/10

4:51 pm-9:00 pm

1 stop28h 09m

$147

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Wed 3/4

9:00 am-10:27 pm

1 stop13h 27m

Lambert-St Louis

Wed 3/11

11:32 am-11:17 pm

2 stops11h 45m

$162

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Mon 3/2

7:00 am-1:09 pm

1 stop6h 09m

Lambert-St Louis

Mon 3/9

2:09 pm-11:00 pm

1 stop8h 51m

$173

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Tue 4/14

8:36 pm-6:50 am

1 stop10h 14m

Lambert-St Louis

Fri 4/17

8:13 pm-7:26 pm

1 stop23h 13m

$183

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Sun 2/22

10:16 pm-1:09 pm

1 stop14h 53m

Lambert-St Louis

Tue 2/24

3:49 pm-4:24 pm

1 stop24h 35m

$190

DallasSt. Louis

DFW - STL

DFWSTL

Dallas/Fort Worth

Mon 2/9

7:00 am-12:50 pm

1 stop5h 50m

Lambert-St Louis

Sat 2/14

3:49 pm-12:18 am

1 stop8h 29m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 35 results
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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 January 30, 2026.

Booking 66 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 $87). Flying from Dallas to St. Louis in March is currently the most expensive (average of $196). 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 February 3, 2026.

A simple way to save on the total cost of your ticket is to fly from Dallas to St. Louis in the morning. 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 January 31, 2026.

Travelers seeking maximum savings on their Dallas to St. Louis flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday 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 February 3, 2026.

The most flights from A78 to STL are scheduled on a Monday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).

The best insider tips for Dallas to St. Louis flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dallas to St. Louis trip
Our travel experts
Chris Dong

Chris Dong

Expert on DFW

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 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

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

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 February 3, 2026.
Get a feel of what it's like to fly with Southwest, American Airlines, and JetBlue 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
4,273 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

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
4,273 reviews
Southwest
8.0
Very good
4,273 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

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
11,213 reviews
Southwest
8.0
Very good
4,273 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

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.
JetBlue
7.2
Good
2,893 reviews
Southwest
8.0
Very good
4,273 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

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
5.7
Fair
3,051 reviews
Southwest
8.0
Very good
4,273 reviews

Overall

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Comfort

8.0

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 20 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.

  • How long is the flight from Dallas to St. Louis?

    Departing from Dallas to St. Louis will take you 1h 40m. There are 545 mi between Dallas and St. Louis. This flight may include one or multiple stops.

  • 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 $79. Additional round-trip tickets that might be worth considering are offered by American Airlines and Southwest, with the lowest prices starting at $174 and $176, respectively. Frontier is priced at 72% 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 Frontier, with whom users have recently found tickets for as low as $49. However, be on the lookout for offers from Southwest and American 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 SkyWest Airlines (100%), Envoy Air (83%) and Fiji Airways (77%).

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

    The cheapest flight price from Dallas to St. Louis is $102. On average you can expect to pay $319. The most popular route, (Dallas/Fort Worth - Lambert-St Louis), can usually be booked for $131.

  • 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 $87). Flying from Dallas to St. Louis in March is currently the most expensive (average of $196). 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 St. Louis?

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

Browse thousands of different options on Cheapflights for your next trip

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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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$79Average$179FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$174Average$378FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$176Average$310FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$243Average$343FlexibilityNo cancel feeOn-time62%

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