$155+ Cheap flights from Amarillo to St. Louis (AMA - 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
AMA — STL
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from Amarillo 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
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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 Amarillo to St. Louis
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Cheapest flights from Amarillo to St. LouisExplore the most affordable flight options available from Amarillo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
Explore the most affordable flight options available from Amarillo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/2610:20 am -
1 stop4h 24m
Tue 9/297:00 am -
1 stop5h 09m
Deal found 9/3![American Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:55 am -
1 stop4h 55m
Tue 9/291:20 pm -
2 stops8h 30m
Deal found 9/3![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:30 pm -
1 stop8h 20m
Mon 10/267:40 pm -
1 stop4h 00m
Deal found 9/2![Southwest logo]()
$327
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/175:00 am -
1 stop4h 24m
Mon 9/215:43 am -
1 stop4h 07m
Deal found 9/2![American Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:00 pm -
1 stop4h 10m
Mon 9/212:20 pm -
2 stops7h 50m
Deal found 9/2![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am -
2 stops7h 10m
Fri 9/253:15 pm -
2 stops6h 55m
Deal found 9/2![Southwest logo]()
$492
This American Airlines deal was found by Cheapflights users on 9/5. 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 9/126:00 am -
1 stop6h 15m
Sun 9/137:00 am -
1 stop5h 09m
Deal found 9/5![American Airlines logo]()
$625
Best flights from Amarillo to St. LouisDiscover carefully curated flight deals from Amarillo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from Amarillo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/2610:20 am -
1 stop4h 24m
Tue 9/297:00 am -
1 stop5h 09m
Deal found 9/3![American Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:55 am -
1 stop4h 55m
Tue 9/291:20 pm -
2 stops8h 30m
Deal found 9/3![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:00 pm -
1 stop4h 10m
Mon 9/212:20 pm -
2 stops7h 50m
Deal found 9/2![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am -
1 stop3h 30m
Fri 9/253:15 pm -
2 stops6h 55m
Deal found 9/2![Southwest logo]()
$487
Last-minute flights from Amarillo to St. LouisDiscover last-minute flight deals from Amarillo to St. Louis. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Amarillo to St. Louis. Data last updated September 6, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/5. 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 9/126:00 am -
1 stop6h 15m
Sun 9/137:00 am -
1 stop5h 09m
Deal found 9/5![American Airlines logo]()
$625
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/175:00 am -
1 stop4h 24m
Mon 9/215:43 am -
1 stop4h 07m
Deal found 9/2![American Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:00 pm -
1 stop4h 10m
Mon 9/212:20 pm -
2 stops7h 50m
Deal found 9/2![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am -
2 stops7h 10m
Fri 9/253:15 pm -
2 stops6h 55m
Deal found 9/2![Southwest logo]()
$492
This American Airlines deal was found by Cheapflights users on 9/3. 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 9/2610:20 am -
1 stop4h 24m
Tue 9/297:00 am -
1 stop5h 09m
Deal found 9/3![American Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 9/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:55 am -
1 stop4h 55m
Tue 9/291:20 pm -
2 stops8h 30m
Deal found 9/3![Southwest logo]()
$314
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:30 pm -
1 stop8h 20m
Mon 10/267:40 pm -
1 stop4h 00m
Deal found 9/2![Southwest logo]()
$327
One-way flights from Amarillo to St. LouisSearch for one-way flight options from Amarillo to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from Amarillo to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Southwest deal was found by Cheapflights users on 9/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/271:50 pm -
1 stop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Southwest logo]()
$155
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:40 am -
2 stops8h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$160
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:57 am -
2 stops9h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$173
This Southwest deal was found by Cheapflights users on 9/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/103:50 pm -
1 stop4h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Southwest logo]()
$189
This United Airlines deal was found by Cheapflights users on 9/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/93:19 pm -
1 stop7h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$195
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 11/95:14 pm -
1 stop6h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$199
Find flight deals from Amarillo to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Amarillo (AMA) 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 September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (American Airlines) |
One-way from | $155 (Southwest) |
Cheapflights Fare Finder
Customize your flight search to find flights from Amarillo 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 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from Amarillo to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Tue 10/27
1:50 pm-7:55 pm
1 stop6h 05m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$155
Quickest round-trip
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Thu 10/29
5:25 am-9:10 am
1 stop3h 45m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$155
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Thu 10/29
11:57 am-9:40 pm
2 stops9h 43m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Sat 10/10
3:50 pm-8:00 pm
1 stop4h 10m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$189
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Mon 11/9
3:19 pm-10:26 pm
1 stop7h 07m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$195
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Sat 9/26
10:20 am-2:44 pm
1 stop4h 24m
Lambert-St Louis
Tue 9/29
7:00 am-12:09 pm
1 stop5h 09m
$309
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Sat 9/26
11:55 am-4:50 pm
1 stop4h 55m
Lambert-St Louis
Tue 9/29
1:20 pm-9:50 pm
2 stops8h 30m
$314
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Thu 9/17
4:00 pm-8:10 pm
1 stop4h 10m
Lambert-St Louis
Mon 9/21
2:20 pm-10:10 pm
2 stops7h 50m
$482
AmarilloSt. Louis
AMA Amarillo - STL Lambert-St Louis
AMASTL
Amarillo
Fri 9/25
6:00 am-9:30 am
1 stop3h 30m
Lambert-St Louis
Fri 9/25
3:15 pm-10:10 pm
2 stops6h 55m
$487
Sorted by cheapest first
Compare providers for flights from Amarillo 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 Amarillo to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Amarillo-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Amarillo-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Amarillo-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Amarillo-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 Amarillo-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 Amarillo to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Amarillo with our price prediction graph.
AMA-STL
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.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 6, 2026.
Get a feel of what it's like to fly with Southwest from Amarillo to St. Louis by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Food
7.0
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Amarillo to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
Fairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
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Amarillo and St. Louis flights
Browse other Amarillo and St. Louis flight options. Last updated on September 6, 2026.
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Top airline flying from Amarillo to St. Louis
Discover the top airline that operate flights from Amarillo to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$319 | Average$366 | FlexibilityNo cancel fee | On-time63% |