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Cheap flights from St. Louis to Amarillo from $163

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Amarillo departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from St. Louis to Amarillo

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:42 am - 12:20 pm
STL
-
AMA
6h 38m
1 stop
American Airlines Logo
4:16 pm - 8:26 pm
AMA
-
STL
4h 10m
1 stop
$303American Airlines
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
7:05 am - 11:20 am
STL
-
AMA
4h 15m
1 stop
Southwest Logo
9:50 am - 5:20 pm
AMA
-
STL
7h 30m
2 stops
$308Southwest
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
12:50 pm - 9:45 pm
STL
-
AMA
8h 55m
2 stops
Southwest Logo
9:50 am - 5:20 pm
AMA
-
STL
7h 30m
2 stops
$324Southwest
Tue, Aug 11 - Mon, Aug 17
American Airlines Logo
5:42 am - 12:20 pm
STL
-
AMA
6h 38m
1 stop
American Airlines Logo
4:16 pm - 8:26 pm
AMA
-
STL
4h 10m
1 stop
$325American Airlines
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
8:40 am - 4:40 pm
STL
-
AMA
8h 00m
2 stops
Southwest Logo
1:00 pm - 5:20 pm
AMA
-
STL
4h 20m
1 stop
$330Southwest
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
12:50 pm - 9:45 pm
STL
-
AMA
8h 55m
2 stops
Southwest Logo
9:50 am - 5:20 pm
AMA
-
STL
7h 30m
2 stops
$335Southwest
Tue, Aug 11 - Mon, Aug 17
American Airlines Logo
10:16 am - 2:30 pm
STL
-
AMA
4h 14m
1 stop
American Airlines Logo
5:00 am - 9:24 am
AMA
-
STL
4h 24m
1 stop
$355American Airlines
Thu, Aug 6 - Sun, Aug 9
United Airlines Logo
3:13 pm - 10:30 pm
STL
-
AMA
7h 17m
1 stop
United Airlines Logo
9:00 am - 10:00 pm
AMA
-
STL
13h 00m
2 stops
$388United Airlines
Tue, Aug 25 - Wed, Aug 26
United Airlines Logo
6:15 am - 2:23 pm
STL
-
AMA
8h 08m
1 stop
United Airlines Logo
9:00 am - 4:39 pm
AMA
-
STL
7h 39m
1 stop
$394United Airlines
Tue, Nov 17 - Wed, Nov 18
United Airlines Logo
5:00 am - 2:23 pm
STL
-
AMA
9h 23m
2 stops
United Airlines Logo
9:00 am - 4:39 pm
AMA
-
STL
7h 39m
1 stop
$399United Airlines
Tue, Nov 17 - Wed, Nov 18

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American Airlines flights from St. Louis to Amarillo

Our best American Airlines deals on St. Louis to Amarillo flight tickets
American Airlines
Aug 11
STL5:42 amLambert-St Louis
6h 38m
1 stop
AMA12:20 pmAmarillo
Aug 17
AMA4:16 pmAmarillo
4h 10m
1 stop
STL8:26 pmLambert-St Louis
$303
American Airlines
Aug 11
STL5:42 amLambert-St Louis
6h 38m
1 stop
AMA12:20 pmAmarillo
Aug 17
AMA4:16 pmAmarillo
4h 10m
1 stop
STL8:26 pmLambert-St Louis
$325
American Airlines
Aug 6
STL10:16 amLambert-St Louis
4h 14m
1 stop
AMA2:30 pmAmarillo
Aug 9
AMA5:00 amAmarillo
4h 24m
1 stop
STL9:24 amLambert-St Louis
$355

Southwest flights from St. Louis to Amarillo

Our best Southwest deals on St. Louis to Amarillo flight tickets
Southwest
Aug 11
STL7:05 amLambert-St Louis
4h 15m
1 stop
AMA11:20 amAmarillo
Aug 17
AMA9:50 amAmarillo
7h 30m
2 stops
STL5:20 pmLambert-St Louis
$308
Southwest
Aug 11
STL12:50 pmLambert-St Louis
8h 55m
2 stops
AMA9:45 pmAmarillo
Aug 17
AMA9:50 amAmarillo
7h 30m
2 stops
STL5:20 pmLambert-St Louis
$324
Southwest
Aug 11
STL8:40 amLambert-St Louis
8h 00m
2 stops
AMA4:40 pmAmarillo
Aug 17
AMA1:00 pmAmarillo
4h 20m
1 stop
STL5:20 pmLambert-St Louis
$330

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Amarillo 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, momondo users made 832,500 searches. Data last updated July 20, 2026.
Use the filters below to find and compare flights from St. Louis to Amarillo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/11

5:42 am-12:20 pm

1 stop6h 38m

Amarillo

Mon 8/17

4:16 pm-8:26 pm

1 stop4h 10m

$303

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/11

7:05 am-11:20 am

1 stop4h 15m

Amarillo

Mon 8/17

9:50 am-5:20 pm

2 stops7h 30m

$308

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/11

12:50 pm-9:45 pm

2 stops8h 55m

Amarillo

Mon 8/17

9:50 am-5:20 pm

2 stops7h 30m

$324

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/11

5:42 am-12:20 pm

1 stop6h 38m

Amarillo

Mon 8/17

4:16 pm-8:26 pm

1 stop4h 10m

$325

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/11

8:40 am-4:40 pm

2 stops8h 00m

Amarillo

Mon 8/17

1:00 pm-5:20 pm

1 stop4h 20m

$330

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/11

12:50 pm-9:45 pm

2 stops8h 55m

Amarillo

Mon 8/17

9:50 am-5:20 pm

2 stops7h 30m

$335
Quickest round-trip

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Thu 8/6

10:16 am-2:30 pm

1 stop4h 14m

Amarillo

Sun 8/9

5:00 am-9:24 am

1 stop4h 24m

$355

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 8/25

3:13 pm-10:30 pm

1 stop7h 17m

Amarillo

Wed 8/26

9:00 am-10:00 pm

2 stops13h 00m

$388

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 11/17

6:15 am-2:23 pm

1 stop8h 08m

Amarillo

Wed 11/18

9:00 am-4:39 pm

1 stop7h 39m

$394

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 11/17

5:00 am-2:23 pm

2 stops9h 23m

Amarillo

Wed 11/18

9:00 am-4:39 pm

1 stop7h 39m

$399

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Amarillo from

How to get the cheapest flight ticket from St. Louis to Amarillo

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 airline that flies from Lambert-St Louis to Amarillo?

Southwest is the most popular carrier operating from Lambert-St Louis to Amarillo

When to book flights from St. Louis to Amarillo

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Amarillo according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Amarillo (STL to AMA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Amarillo

Fastest flight time

4h 15m

Direct flights

None
The fastest flight from St. Louis to Amarillo takes 4h 15m
There are no direct flights from St. Louis to Amarillo. There are no popular flight routes from St. Louis to Amarillo.
Search flight deals

Frequently asked questions about flying from St. Louis to Amarillo

  • How far is Lambert-St Louis to Amarillo by plane?

    The distance between Lambert-St Louis and Amarillo is about 683.1 mi. In terms of flight time, this usually takes a little over 4h 15m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Amarillo Airport?

    Prices for flights from Lambert-St Louis Airport to Amarillo Airport refresh daily.

  • How old do you have to be to fly from Lambert-St Louis Airport to Amarillo Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Amarillo Airport.

  • What documentation or ID do you need to fly to Amarillo Airport?

    The required travel and health documents for your Amarillo 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 Amarillo Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Amarillo?

Book flights to Amarillo if you plan to visit one of these locations
Dumas
Dalhart
Vega

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Amarillo?

It is quick and easy to find St. Louis to Amarillo flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Amarillo that suits you.

Can I find flights from St. Louis to Amarillo with flexible booking policies on momondo?

All flight searches from St. Louis to Amarillo on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from St. Louis to Amarillo?

momondo provides multiple filters to help you find the best flight to Amarillo from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Amarillo right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Amarillo now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Amarillo and let you know when they change.

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