$120 Cheap Flights from Amarillo (AMA) to St. Louis (STL)

View $120 flight on Wed, Oct 29, 2025Opens in a new window

Popular airlines from Amarillo, TX (AMA-Rick Husband Amarillo Intl.) to St. Louis Lambert Intl. Airport (STL)

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Cheap Flights from Amarillo to St. Louis (AMA-STL)

Prices were available within the past 7 days and start at $120 for one-way flights and $261 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$261 Roundtrip, found 1 day ago
$261
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $261 found 1 day ago
Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$266 Roundtrip, found 1 day ago
$266
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $266 found 1 day ago
Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$285 Roundtrip, found 1 day ago
$285
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $285 found 1 day ago
Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$290 Roundtrip, found 1 day ago
$290
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $290 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$295 Roundtrip, found 1 day ago
$295
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $295 found 1 day ago
Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$296 Roundtrip, found 1 day ago
$296
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $296 found 1 day ago
United
Sat, Oct 11 - Tue, Oct 14
AMA
Amarillo
STL
St. Louis
$299 Roundtrip, found 5 days ago
$299
Roundtrip
found 5 days ago
Select United flight, departing Sat, Oct 11 from Amarillo to St. Louis, returning Tue, Oct 14, priced at $299 found 5 days ago
Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$301 Roundtrip, found 1 day ago
$301
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $301 found 1 day ago
Southwest Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$302 Roundtrip, found 1 day ago
$302
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $302 found 1 day ago
American Airlines
Mon, Oct 27 - Tue, Oct 28
AMA
Amarillo
STL
St. Louis
$303 Roundtrip, found 1 day ago
$303
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Oct 27 from Amarillo to St. Louis, returning Tue, Oct 28, priced at $303 found 1 day ago

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 $427
STL
Lambert-St. Louis Intl.
Cheapest
Average driving time to city center20 min
Flights from $427

Frequently asked questions

How much does a flight from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL) cost?
Grab a cheap one-way flight from $120 or cheap return flight from $261 from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from AMA to STL is October, when demand is low. Off-peak months are usually when better flight deals are available between these airports.
What is the cheapest airline that flies from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from AMA to STL. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from AMA to STL?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* But this can change based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL) route, fly before 3 PM. Later departures are 22% more likely to be 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.
Is it cheaper to buy a plane ticket from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Waiting until just before your departure to book your flight from AMA to STL often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of getting a bargain.
Is it cheaper to book an AMA to STL flight and hotel package?
Compared with arranging hotels and flights separately, booking an AMA to STL flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place takes the hassle out of planning your trip. Simply pick your flights and select from our wide range of hotels, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Rick Husband Amarillo Intl. Airport (AMA) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your AMA to STL flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Travel information

Origin airport
Rick Husband Amarillo Intl.
Destination airport
Lambert-St. Louis Intl.
Airlines serving
American Airlines, Southwest Airlines, United
Roundtrip price
$261
Distance
670 mi

Book with confidence

Book with confidence

Amarillo to St. Louis Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Amarillo 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 Amarillo 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 Amarillo to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $120 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 Amarillo 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 Amarillo 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.

 

Amarillo to St. Louis Flights

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Explore a world of travel with Expedia

*Available to One Key members.