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

A quick flight from St. Louis to Dallas can take about 6h 55m. Frontier provides one of the quickest options available for as low as $196. The distance from St. Louis to Dallas is about 550 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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 $67. Additional round-trip tickets that might be worth considering are offered by Delta and Southwest, with the lowest prices starting at $118 and $159, respectively. You may be able to fly from St. Louis to Dallas for 75% 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 ($38), Southwest ($69), and American Airlines ($86).

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 45 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, October is the cheapest month in which you can book a flight from St. Louis to Dallas (average of $80). Flying from St. Louis to Dallas in January is currently the most expensive (average of $180). 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 day to fly from St. Louis to Dallas?

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

The most flights from STL to A78 are scheduled on a Friday (31 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (23 on average).

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.

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).

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

Looking at all options, your cheapest flight can be booked for $82. While the most popular route (Lambert-St Louis - Dallas/Fort Worth) can be booked for $147 on average, our data indicates $915 when flying from St. Louis to Dallas.

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 (85%), Cathay Pacific (70%), Qatar Airways (69%).

What are the most popular airlines that fly from St. Louis to Dallas?

When booking a flight from St. Louis to Dallas, you may want to consider flying on Southwest, American Airlines or Frontier as they are the most popular for this route.

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 25% versus a flight at noon.

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 26 outbound flights to Dallas per day.

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.

$64+ Flights from St. Louis to Dallas

Round-trip from	$188 (Kiwi.com)
One-way from	$64 (Frontier)
Popular in	February
Cheapest in	August
Average price	$305

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.

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$69	Average$151	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$118	Average$419	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$160	Average$298	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$167	Average$400	FlexibilityNo cancel fee	On-time71%

$64+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Lambert-St Louis to Dallas are usually found in August or September, booked 45 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from St. Louis to Dallas

Cheapest flights from St. Louis to DallasExplore 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 December 26, 2025.

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 December 26, 2025.

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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 December 19, 2025.

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

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 December 26, 2025.

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.

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 December 26, 2025.

The best insider tips for St. Louis to Dallas 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 St. Louis to Dallas trip

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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.

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?

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

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

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

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

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

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

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

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

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

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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 December 26, 2025.