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Cheap flights from St. Louis to Amarillo from $149

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 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 2:21 pm
STL
-
AMA
8h 21m
1 stop
United Airlines Logo
8:00 am - 1:19 pm
AMA
-
STL
5h 19m
1 stop
$372United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
6:00 am - 11:29 am
STL
-
AMA
5h 29m
1 stop
United Airlines Logo
12:04 pm - 10:59 pm
AMA
-
STL
10h 55m
2 stops
$377United Airlines
Wed, Mar 4 - Wed, Mar 11
United Airlines Logo
7:41 am - 4:56 pm
STL
-
AMA
9h 15m
2 stops
United Airlines Logo
12:04 pm - 10:59 pm
AMA
-
STL
10h 55m
2 stops
$383United Airlines
Wed, Mar 4 - Wed, Mar 11
Southwest Logo
7:30 pm - 11:25 pm
STL
-
AMA
3h 55m
1 stop
Southwest Logo
5:05 pm - 1:55 am
AMA
-
STL
8h 50m
1 stop
$387Southwest
Fri, May 15 - Sun, May 17
Southwest Logo
7:30 pm - 11:25 pm
STL
-
AMA
3h 55m
1 stop
Southwest Logo
5:25 am - 12:40 pm
AMA
-
STL
7h 15m
2 stops
$392Southwest
Fri, May 15 - Sun, May 17
Southwest Logo
9:55 am - 5:25 pm
STL
-
AMA
7h 30m
2 stops
Southwest Logo
5:25 am - 12:40 pm
AMA
-
STL
7h 15m
2 stops
$404Southwest
Fri, May 15 - Sun, May 17
United Airlines Logo
9:00 am - 4:51 pm
STL
-
AMA
7h 51m
1 stop
United Airlines Logo
8:00 am - 1:19 pm
AMA
-
STL
5h 19m
1 stop
$447United Airlines
Sat, Mar 7 - Wed, Mar 11
United Airlines Logo
7:41 am - 4:51 pm
STL
-
AMA
9h 10m
2 stops
United Airlines Logo
3:10 pm - 10:16 pm
AMA
-
STL
7h 06m
1 stop
$452United Airlines
Sat, Mar 7 - Wed, Mar 11
Southwest Logo
12:40 pm - 11:10 pm
STL
-
AMA
10h 30m
2 stops
Southwest Logo
11:30 am - 5:55 pm
AMA
-
STL
6h 25m
2 stops
$457Southwest
Sat, Mar 7 - Wed, Mar 11

Southwest flights from St. Louis to Amarillo

Our best Southwest deals on St. Louis to Amarillo flight tickets
Southwest
May 15
STL7:30 pmLambert-St Louis
3h 55m
1 stop
AMA11:25 pmAmarillo
May 17
AMA5:05 pmAmarillo
8h 50m
1 stop
STL1:55 amLambert-St Louis
$387
Southwest
May 15
STL7:30 pmLambert-St Louis
3h 55m
1 stop
AMA11:25 pmAmarillo
May 17
AMA5:25 amAmarillo
7h 15m
2 stops
STL12:40 pmLambert-St Louis
$392
Southwest
May 15
STL9:55 amLambert-St Louis
7h 30m
2 stops
AMA5:25 pmAmarillo
May 17
AMA5:25 amAmarillo
7h 15m
2 stops
STL12:40 pmLambert-St Louis
$404

United Airlines flights from St. Louis to Amarillo

Our best United Airlines deals on St. Louis to Amarillo flight tickets
United Airlines
Mar 4
STL6:00 amLambert-St Louis
8h 21m
1 stop
AMA2:21 pmAmarillo
Mar 11
AMA8:00 amAmarillo
5h 19m
1 stop
STL1:19 pmLambert-St Louis
$372
United Airlines
Mar 4
STL6:00 amLambert-St Louis
5h 29m
1 stop
AMA11:29 amAmarillo
Mar 11
AMA12:04 pmAmarillo
10h 55m
2 stops
STL10:59 pmLambert-St Louis
$377
United Airlines
Mar 4
STL7:41 amLambert-St Louis
9h 15m
2 stops
AMA4:56 pmAmarillo
Mar 11
AMA12:04 pmAmarillo
10h 55m
2 stops
STL10:59 pmLambert-St Louis
$383

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 February 21, 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

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Wed 3/4

6:00 am-2:21 pm

1 stop8h 21m

Amarillo

Wed 3/11

8:00 am-1:19 pm

1 stop5h 19m

$372

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Wed 3/4

6:00 am-11:29 am

1 stop5h 29m

Amarillo

Wed 3/11

12:04 pm-10:59 pm

2 stops10h 55m

$377

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Wed 3/4

7:41 am-4:56 pm

2 stops9h 15m

Amarillo

Wed 3/11

12:04 pm-10:59 pm

2 stops10h 55m

$383

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Fri 5/15

7:30 pm-11:25 pm

1 stop3h 55m

Amarillo

Sun 5/17

5:05 pm-1:55 am

1 stop8h 50m

$387

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Fri 5/15

7:30 pm-11:25 pm

1 stop3h 55m

Amarillo

Sun 5/17

5:25 am-12:40 pm

2 stops7h 15m

$392

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Fri 5/15

9:55 am-5:25 pm

2 stops7h 30m

Amarillo

Sun 5/17

5:25 am-12:40 pm

2 stops7h 15m

$404

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Sat 3/7

9:00 am-4:51 pm

1 stop7h 51m

Amarillo

Wed 3/11

8:00 am-1:19 pm

1 stop5h 19m

$447

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Sat 3/7

7:41 am-4:51 pm

2 stops9h 10m

Amarillo

Wed 3/11

3:10 pm-10:16 pm

1 stop7h 06m

$452

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Sat 3/7

12:40 pm-11:10 pm

2 stops10h 30m

Amarillo

Wed 3/11

11:30 am-5:55 pm

2 stops6h 25m

$457

St. LouisAmarillo

STL - AMA

STLAMA

Lambert-St Louis

Tue 5/19

4:35 pm-10:10 pm

1 stop5h 35m

$149

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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 and United Airlines are the most popular carriers 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

5h 15m

Direct flights

None
The fastest flight from St. Louis to Amarillo takes 5h 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

  • 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 5h 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 many operators does momondo search for flights from Lambert-St Louis Airport to Amarillo Airport?

  • 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.

  • What is the most popular airline from St. Louis to Amarillo?

Traveling to a place near Amarillo?

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

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?

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