Cheap flights from Dallas to St. Louis from $39
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dallas to St. Louis departing on 8/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Dallas to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to St. Louis?
In general, August is the cheapest month to fly from Dallas to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $214. The month of June is another great option to travel to St. Louis, with average flight prices from Dallas averaging around $226.
What is the cheapest day to depart on your flight to St. Louis?
The cheapest day to depart on your flight to St. Louis is on a Monday when prices can be found for as low as $220. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $360. These prices are subject to change though, so be sure to set up a Price Alert for flights to St. Louis.
What is the cheapest time of day to depart on your flight to St. Louis?
Flying to St. Louis from Dallas in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $280 when looking at flights departing in the afternoon. In the evening is when there is more demand to fly to St. Louis, so prices are often more expensive at around $335 per ticket.
What is the cheapest Dallas to Lambert-St Louis flight route?
Fly from Dallas/Fort Worth to Lambert-St Louis for the best Dallas - Lambert-St Louis flight prices
How far in advance should I book a flight to St. Louis?
You are more likely to see cheaper flights to St. Louis from Dallas when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around $281 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Dallas for as low as $220 on momondo.
What cabin class options are available on Dallas to Lambert-St Louis flights?
There are 3 cabin classes available to choose from on Dallas to Lambert-St Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Dallas to Lambert-St Louis?
Frontier, American Airlines, and Southwest are the most popular carriers operating from Dallas to Lambert-St Louis
What airlines fly to St. Louis?
American Airlines, Southwest and Frontier are the top three most popular airlines that fly to St. Louis from Dallas according to our data. American Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to St. Louis. Keep in mind that there are 4 different airlines that fly to St. Louis on a routine basis, so you have a few additional options to choose from.
How many flights depart from Dallas to St. Louis on average per day?
The number of flights available between Dallas and St. Louis is 29 per day as of June 2025. The most frequent departure time is 9:00PM, with 47% of daily flights leaving in the afternoon.
How many flights depart from Dallas to St. Louis on average per week?
As of June 2025, there are 207 flights per week flying from Dallas to St. Louis. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.
Cheap Dallas to St. Louis flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Dallas to St. Louis
How far is Dallas to Lambert-St Louis by plane?
The straight-line distance from Dallas to Lambert-St Louis is 547.5 mi. Typically, this will take 1h 40m by plane in normal conditions.
When did momondo last update prices for flights from Dallas to Lambert-St Louis Airport?
Prices for flights from Dallas to Lambert-St Louis Airport were last updated today.
How many operators does momondo search for flights from Dallas to Lambert-St Louis Airport?
As of June 2025, there are 4 operators available to choose from for flights from Dallas to Lambert-St Louis Airport.
How old do you have to be to fly from Dallas to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Dallas to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Dallas to St. Louis
Compare and see reviews for airlines that fly from Dallas to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $49 | Free Cancellation | Rating 5.9 3,293 reviews | |||
| PriceFrom $103 | Free Cancellation | Rating 8.0 7,969 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $197 | Free Cancellation | Rating 8.0 4,278 reviews |
Traveling to a place near St. Louis?
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Why should I use momondo to find a flight deal from Dallas to St. Louis?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dallas to St. Louis for you.
Can I find flights from Dallas to St. Louis with flexible booking policies on momondo?
Flights from Dallas to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Dallas to St. Louis?
momondo provides multiple filters to help you find the best flight to St. Louis from Dallas. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Dallas to St. Louis right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Dallas to St. Louis now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to St. Louis and let you know when they change.