$70 Cheap Flights from St. Louis (STL) to Dallas (DFW)

View $70 flight on Thu, Aug 21, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)

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Cheap Flights from St. Louis to Dallas (STL-DFW)

Prices were available within the past 7 days and start at $70 for one-way flights and $72 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 9 - Thu, Oct 16
STL
St. Louis
DFW
Dallas
$72 Roundtrip, just found
$72
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 9 from St. Louis to Dallas, returning Thu, Oct 16, priced at $72 just found
American Airlines
Sat, Sep 27 - Thu, Oct 2
STL
St. Louis
DFW
Dallas
$110 Roundtrip, found 2 days ago
$110
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Sep 27 from St. Louis to Dallas, returning Thu, Oct 2, priced at $110 found 2 days ago
Spirit Airlines
Thu, Aug 28 - Thu, Sep 11
STL
St. Louis
DFW
Dallas
$121 Roundtrip, found 2 days ago
$121
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Thu, Aug 28 from St. Louis to Dallas, returning Thu, Sep 11, priced at $121 found 2 days ago
Frontier Airlines
Thu, Sep 25 - Thu, Oct 9
STL
St. Louis
DFW
Dallas
$124 Roundtrip, found 3 days ago
$124
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Sep 25 from St. Louis to Dallas, returning Thu, Oct 9, priced at $124 found 3 days ago
Frontier Airlines
Sun, Oct 12 - Thu, Oct 16
STL
St. Louis
DFW
Dallas
$126 Roundtrip, found 1 day ago
$126
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Oct 12 from St. Louis to Dallas, returning Thu, Oct 16, priced at $126 found 1 day ago
Spirit Airlines
Tue, Nov 4 - Thu, Nov 6
STL
St. Louis
DFW
Dallas
$133 Roundtrip, found 2 days ago
$133
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Tue, Nov 4 from St. Louis to Dallas, returning Thu, Nov 6, priced at $133 found 2 days ago
Frontier Airlines
Thu, Oct 16 - Tue, Oct 21
STL
St. Louis
DFW
Dallas
$137 Roundtrip, found 3 days ago
$137
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Oct 16 from St. Louis to Dallas, returning Tue, Oct 21, priced at $137 found 3 days ago
Delta
Sat, Sep 27 - Thu, Oct 2
STL
St. Louis
DFW
Dallas
$139 Roundtrip, found 2 days ago
$139
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Sep 27 from St. Louis to Dallas, returning Thu, Oct 2, priced at $139 found 2 days ago
Spirit Airlines
Sun, Sep 14 - Sun, Sep 21
STL
St. Louis
DFW
Dallas
$145 Roundtrip, found 3 days ago
$145
Roundtrip
found 3 days ago
Select Spirit Airlines flight, departing Sun, Sep 14 from St. Louis to Dallas, returning Sun, Sep 21, priced at $145 found 3 days ago
United
Sat, Aug 23 - Tue, Aug 26
STL
St. Louis
DFW
Dallas
$237 Roundtrip, found 5 hours ago
$237
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Aug 23 from St. Louis to Dallas, returning Tue, Aug 26, priced at $237 found 5 hours ago

Find the cheapest month to fly from St. Louis (STL) to Dallas (DFW)

November is typically the cheapest month to fly

From $75 - $360 per traveler.

Graph displaying average flight prices per month

Alternative airports near Dallas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Love Field DAL. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $320
DAL
Love Field
CheapestClosest
Average driving time to city center10 min
Flights from $320
Flights from St. Louis (STL) to Dallas (DFW)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Dallas-Fort Worth Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Spirit Airlines, United
Roundtrip price
$72
Distance
550 mi
Average flight time
1 hour 53 mins

St. Louis to Dallas Flights

The cheapest times to fly from St. Louis to Dallas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Dallas are during the month of October. You can find some of the cheapest flights from St. Louis to Dallas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Dallas

Sunday is one of the best days to book for cheap flights from St. Louis to Dallas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Dallas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Dallas in 2025. You can also book with separate airlines for your outbound and return journeys, from $70 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Dallas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Dallas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW) cost?
Cheap return flights from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW) start from $102. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving STL on August 16 2025 and touching down at DFW. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from STL to DFW?
The cheapest flights from STL to DFW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
You can fly straight from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW) on an American Airlines flight.
What is the cheapest airline that flies from STL to DFW?
Currently, the cheapest airline offering one-way flights from STL to DFW is Frontier Airlines. You can jet off on this route from $61. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from STL on September 25 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
Each day, an average of 6 nonstop flights operate from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW). Pick the departure time that best suits your travel plans.
What are the most popular departure times for flights from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
More people fly between STL and DFW at 5 AM than at any other time. Prefer a quieter experience? Try choosing a quieter departure window and there's a chance you'll save on your fare as well.
What day of the week has the most flights from STL to DFW?
Depart on a Friday if you're after the best choice of flights from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW).
What is the earliest flight from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
The earliest flight jetting off from Lambert-St. Louis Intl. Airport (STL) is at around 5:03AM UTC-6. Catch this flight and you'll land at Dallas-Fort Worth Intl. Airport (DFW) at approximately 7:17AM UTC-6. The total flight duration is 2h 14m.
How long does it take to fly from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
Flights from STL to DFW have an average travel time of 2 hours and 8 minutes. The total distance between the two airports is 550 mi.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
To reach Dallas-Fort Worth Intl. Airport (DFW) on schedule, book a flight that leaves Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Dallas from Lambert-St. Louis Intl. Airport (STL)?
You'll arrive at Dallas-Fort Worth Intl. Airport (DFW) or Love Field Airport (DAL) when traveling to Dallas on a direct flight from Lambert-St. Louis Intl. Airport (STL).
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW) last-minute?
Waiting until just before your departure to book a flight from STL to DFW generally means paying more. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a STL to DFW flight and hotel package?
Securing a STL to DFW flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Dallas-Fort Worth Intl. Airport (DFW)?
It's generally possible to reschedule or cancel your STL to DFW flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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Dallas nearby Airports

Dallas

St. Louis to Love Field
$138.60
*Available to One Key members.