$34 Find Cheap Flights from St. Louis to Dallas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Dallas departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Dallas

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Dallas, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Dallas, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$121
Typical prices: $405-$267
Frontier
Tue 6/16Thu 6/18
STL - DFW • Non-stop
Cheapest one-way
$34
Typical prices: $118-$248
Frontier
Sat 6/6
STL - DFW • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest offers two free checked bags for luggage needs.
DAL's proximity to downtown Dallas is convenient.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $121 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines, Frontier and Southwest. Average duration is 1h 52m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest • 25% average savings
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 46% compared to booking last minute.
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Flight Deals
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Expert advice
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Dallas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Dallas

Tue, Jun 16 - Thu, Jun 18
Frontier Logo
7:03 pm - 9:00 pm
STL
-
DFW
1h 57mnonstop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$121Frontier
Sat, Jun 6 - Sun, Jun 7
Frontier Logo
3:25 pm - 5:31 pm
STL
-
DFW
2h 06mnonstop
Frontier Logo
5:18 am - 7:23 pm
DFW
-
STL
14h 05m
1 stop
$124Frontier
Thu, Jun 18 - Thu, Jun 25
Frontier Logo
7:03 pm - 9:00 pm
STL
-
DFW
1h 57mnonstop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$125Frontier
Sat, May 30 - Sat, Jun 6
Frontier Logo
4:19 pm - 7:50 am
STL
-
DFW
15h 31m
1 stop
Frontier Logo
12:00 pm - 1:55 pm
DFW
-
STL
1h 55mnonstop
$127Frontier
Sat, Jun 6 - Wed, Jun 10
Frontier Logo
3:25 pm - 5:31 pm
STL
-
DFW
2h 06mnonstop
Frontier Logo
5:18 am - 7:23 pm
DFW
-
STL
14h 05m
1 stop
$129Frontier
Wed, Jun 3 - Wed, Jun 10
Frontier Logo
4:19 pm - 7:50 am
STL
-
DFW
15h 31m
1 stop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$130Frontier
Tue, Jun 23 - Tue, Jun 30
Frontier Logo
7:03 pm - 9:00 pm
STL
-
DFW
1h 57mnonstop
Frontier Logo
4:21 pm - 6:18 pm
DFW
-
STL
1h 57mnonstop
$132Frontier
Fri, Jun 5 - Sun, Jun 7
Frontier Logo
9:06 pm - 5:41 am
STL
-
DFW
8h 35m
1 stop
Frontier Logo
12:36 pm - 2:31 pm
DFW
-
STL
1h 55mnonstop
$134Frontier
Wed, Jun 3 - Wed, Jun 10
Southwest Logo
8:25 am - 10:15 am
STL
-
DAL
1h 50mnonstop
Southwest Logo
10:20 am - 12:05 pm
DAL
-
STL
1h 45mnonstop
$261Southwest
Sun, May 24 - Wed, May 27
Southwest Logo
9:00 am - 10:50 am
STL
-
DAL
1h 50mnonstop
Southwest Logo
1:05 pm - 2:50 pm
DAL
-
STL
1h 45mnonstop
$263Southwest
Booking Insights

KAYAK's insights & trends for St. Louis to Dallas flights

Get data-powered insights and trends into flights from St. Louis to Dallas to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Dallas?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Dallas departing in June.

What is the cheapest St. Louis to Dallas flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The absolute cheapest return flight from St. Louis to Dallas costs $160 on the route between St. Louis (STL) and Dallas/Fort Worth Airport (DFW). However, over the past month, flights between St. Louis (STL) and Dallas Love Field Airport (DAL) were, on average, 25% cheaper than other St. Louis-Dallas routes. The most popular route is between St. Louis (STL) and Dallas/Fort Worth Airport (DFW).

What’s the cheapest day of the week to fly from St. Louis to Dallas?

The average price of all round-trip flights from St. Louis to Dallas clicked on KAYAK for each day over the last 12 months.

For St. Louis to Dallas, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Dallas back to St. Louis, the best deals are generally found on Thursday, with Monday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Dallas, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Dallas is September, where tickets cost $52 (return) on average. On the other hand, the most expensive months are March and May, where the average cost of round-trip tickets is $238 and $161 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Dallas, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Dallas, you should book around 5 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Expert advice

Expert advice for your flight from St. Louis to Dallas

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Ramsey Qubein

Ramsey Qubein

Expert on DFW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Laura Ratliff

Laura Ratliff

Expert on DAL

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Good to know

Cheapest flight$34
Flight from St. Louis to Dallas/Fort Worth Airport

When to book flights from St. Louis to Dallas

Are your dates flexible? Find out the best times to travel from St. Louis to Dallas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Dallas

  • What is the cheapest flight from St. Louis to Dallas?

    In the last 3 days, the lowest price for a flight from St. Louis to Dallas was $34 for a one-way ticket and $121 for a round-trip.

  • Do I need a passport to fly between St. Louis and Dallas?

    Yes

  • Which airports will I be using when flying from St. Louis to Dallas?

    St. Louis is served by only 1 airport and there are 2 airports in Dallas. You will leave St. Louis from Lambert-St Louis and you will be arriving in Dallas at one of these airports: Dallas Love Field or Dallas/Fort Worth.

  • Which aircraft models fly most regularly from St. Louis to Dallas?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Dallas?

    oneworld is the only airline alliance operating flights between St. Louis and Dallas.

  • How does KAYAK find such low prices on flights from St. Louis to Dallas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Dallas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Dallas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dallas from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Dallas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Dallas with an airline and back to St. Louis with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Dallas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dallas from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from St. Louis to Dallas?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Dallas.
Find which airlines fly direct from Lambert-St Louis Airport to Dallas, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Dallas

Monday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Tuesday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Wednesday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Thursday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Friday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Saturday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Sunday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

See more direct flights

Direct returns

Dallas to Lambert-St Louis

Monday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Tuesday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Wednesday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Thursday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Friday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Saturday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

Sunday

American Airlines,Frontier,Southwest

American Airlines,Frontier, +1 more

See more direct flights

Reviews of the top 4 airlines serving from St. Louis to Dallas

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Dallas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Dallas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4305 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

4.0 OkayDavid, Apr 2026
COS - DAL
Read more Southwest reviews

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

The seat was not comfortable. 1D. My back was sore all night and the next day.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flights on time w/o delays. However, my baggage was damaged. Ground crew, throws baggage from plane to the baggage carrier, carelessly.

Business class was very good, one of my best flights

American flight was diverted and delayed but app didn’t show that information so I wasn’t able to change my connection until the last min.

Air condition was not working for long both after boarding and also after landing ; unbearably hot and suffocating

Human interaction. Thought there would be more service-even a smile would have been nice.

It was canceled at the last minute. While I was literally at the airport. Messed my entire trip up.

Given us a free miles or free flight for waiting for 9 hours I didn’t get home till 5am in the morning and I was supposed to be home at 9:30 touch down.

Excellent price. Everything on time. two bad parts. Kayak said I couldn't sign in for the flight online, but I got an email at the same time from Jet Blue and they let me sign in online. Second bad part was that, although I had provided my known traveler number, neither of my boarding passes, for this flight and the previous one, had TSA pre-check showing.

Jet blue was great But the Jayak system Wasa pure nightmare and wasted so much of my time and energy by not giving me a way to access jet blue to check in the flight back I didn’t even get the number confirmation code 24 hours before. Because I didn’t receive the email with the confirmation code I could NoT CHECk IN. I spoke to a kayak third party and they informed me I could not carry a carry on, on the flight which caused me so much extra stress it was just too much. You can be sure I will not be using it recommending your site. Again.

There was a screen but no earphones that could use the older input so I could listen to anything.

My experience with JetBlue was fine BUT I am very upset with Kayak! JetBlue had delayed our scheduled departure by an hour and you NEVER notified me of the change. I did not hear directly from JetBlue because the trip was booked through Kayak, a mistake I will not repeat. Your reminder of the our trip last week still had the WRONG departure time. Our return trip has also changed, and again no notice from you.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

Everything you need to know for your flight from St. Louis to Dallas

Information on your arrival and departure airports