Cheap Flights from Dallas (DFW) to St. Louis (CPS)

Popular airlines from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis, MO (CPS-St. Louis Downtown)

Alternative airports near St. Louis

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

Select flight to Lambert-St. Louis Intl. STL. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $202
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $202
Flights from Dallas (DFW) to St. Louis (CPS)
Origin airport
Dallas-Fort Worth Intl.
Destination airport
St. Louis Downtown
Distance
550 mi

Dallas to St. Louis Flights

The cheapest times to fly from Dallas to St. Louis

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 Dallas to St. Louis are during the month of . You can find some of the cheapest flights from Dallas to St. Louis with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Dallas to St. Louis: 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 Dallas to St. Louis

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 Dallas to St. Louis in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Dallas to St. Louis 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 Dallas to St. Louis 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 Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS) cost?
Secure a cheap one-way flight or cheap return flight from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS)?
Planning your trip for is a great way to save, as it's the cheapest month for flights between DFW and CPS. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS)?
To find the cheapest airline that'll fly you from DFW to CPS, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS)?
You'll need to hop on a flight with a layover if you're traveling from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from DFW to CPS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a number of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS)?
To avoid potential delays on the Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**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 East St. Louis from Dallas-Fort Worth Intl. Airport (DFW)?
Check out your flight options from Dallas-Fort Worth Intl. Airport (DFW) to Lambert-St. Louis Intl. Airport (STL). This is the only East St. Louis airport you can land at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS) last-minute?
Last-minute bookings from DFW to CPS are generally more expensive. To secure the best prices, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, you may find a cheap fare just before your departure.
Is it cheaper to book a DFW to CPS flight and hotel package?
Compared with arranging hotels and flights separately, booking a DFW to CPS flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one convenient place will take the stress out of travel planning. Simply secure your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Dallas-Fort Worth Intl. Airport (DFW) to St. Louis Downtown Airport (CPS)?
Typically, you can cancel or modify your DFW to CPS flight. However, there may be additional fees, especially if you booked over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more details, go to our Customer Service portal.

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*Available to One Key members.