HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$440+ Cheap flights from Waco to St. Louis (ACT - STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
ACT — STL
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Waco to St. Louis with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Waco to St. Louis

Cheapest flights from Waco to St. Louis
Explore the most affordable flight options available from Waco to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 27, 2026.

This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/36:05 pm
ACT
-
STL
1 stop5h 38m
American Airlines
Sat 10/105:40 am
STL
-
ACT
1 stop5h 04m
American Airlines
Deal found 6/23$440
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:13 pm
ACT
-
STL
1 stop3h 35m
American Airlines
Sat 8/1512:45 pm
STL
-
ACT
1 stop4h 45m
American Airlines
Deal found 6/24$481
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:10 am
ACT
-
STL
1 stop6h 55m
American Airlines
Fri 8/146:36 am
STL
-
ACT
1 stop4h 04m
American Airlines
Deal found 6/24$522
This American Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:10 am
ACT
-
STL
1 stop3h 36m
American Airlines
Mon 7/135:13 pm
STL
-
ACT
1 stop6h 20m
American Airlines
Deal found 6/24$618
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:10 am
ACT
-
STL
1 stop4h 14m
American Airlines
Mon 10/56:51 pm
STL
-
ACT
1 stop4h 44m
American Airlines
Deal found 6/23$640
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:10 am
ACT
-
STL
1 stop4h 14m
American Airlines
Fri 10/95:40 am
STL
-
ACT
1 stop5h 04m
American Airlines
Deal found 6/23$686

Find flight deals from Waco to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Waco (ACT) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$440
(American Airlines)
Provider with most accurate pricing for Waco-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Waco-Lambert-St Louis flights.
Search Deals
From Waco to Lambert-St Louis
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Waco to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 27, 2026.
Use the filters below to find and compare flights from Waco to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Sat 10/3

6:05 pm-11:43 pm

1 stop5h 38m

Lambert-St Louis

Sat 10/10

5:40 am-10:44 am

1 stop5h 04m

$440
Quickest round-trip

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Sun 8/2

6:13 pm-9:48 pm

1 stop3h 35m

Lambert-St Louis

Sat 8/15

12:45 pm-5:30 pm

1 stop4h 45m

$481

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Sun 10/4

5:10 am-9:24 am

1 stop4h 14m

Lambert-St Louis

Mon 10/5

6:51 pm-11:35 pm

1 stop4h 44m

$640

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Thu 7/9

6:13 pm-9:48 pm

1 stop3h 35m

Lambert-St Louis

Mon 7/13

1:16 pm-11:33 pm

2 stops10h 17m

$718

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Fri 8/7

5:10 am-12:54 pm

2 stops7h 44m

Lambert-St Louis

Fri 8/14

6:00 am-5:30 pm

2 stops11h 30m

$817

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Sun 10/4

5:10 am-4:48 pm

2 stops11h 38m

Lambert-St Louis

Fri 10/9

5:40 am-10:44 am

1 stop5h 04m

$823
Cheapest one-way
Quickest one-way

WacoSt. Louis

ACT - STL

ACTSTL

Waco

Fri 7/24

5:10 am-8:46 am

1 stop3h 36m

$514

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Sorted by cheapest first

Compare providers for flights from Waco to St. Louis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Waco to St. Louis in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Waco-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Waco-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Waco-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Waco-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Waco-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Waco to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Waco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Waco to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Waco to St. Louis?

    Departing from Waco to St. Louis will take you 5h 38m. The distance from Waco to St. Louis is about 626 mi.

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

    Yes. In addition to deals on Waco to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Waco to St. Louis.

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

    Yes. Cheapflights offers flight deals from Waco to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.