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Cheap flights from St. Louis to McAllen from $256

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to McAllen departing on 2/10. 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
0 bags

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Find the cheapest flights from St. Louis to McAllen

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:25 am - 2:34 pm
STL
-
MFE
5h 09m1 stop
American Airlines Logo
3:41 pm - 10:54 pm
MFE
-
STL
7h 13m1 stop
$256American Airlines
Tue, Feb 10 - Sun, Feb 15
American Airlines Logo
6:00 am - 2:34 pm
STL
-
MFE
8h 34m2 stops
American Airlines Logo
3:41 pm - 10:54 pm
MFE
-
STL
7h 13m1 stop
$261American Airlines
Tue, Feb 10 - Sun, Feb 15
United Airlines Logo
4:42 pm - 9:57 pm
STL
-
MFE
5h 15m1 stop
United Airlines Logo
9:30 am - 3:52 pm
MFE
-
STL
6h 22m1 stop
$283United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
1:15 pm - 9:57 pm
STL
-
MFE
8h 42m2 stops
United Airlines Logo
5:25 pm - 10:00 pm
MFE
-
STL
4h 35m1 stop
$288United Airlines
Sat, Jan 24 - Wed, Jan 28
United Airlines Logo
4:42 pm - 9:57 pm
STL
-
MFE
5h 15m1 stop
United Airlines Logo
5:25 pm - 10:00 pm
MFE
-
STL
4h 35m1 stop
$291United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
4:42 pm - 9:57 pm
STL
-
MFE
5h 15m1 stop
United Airlines Logo
5:25 pm - 10:00 pm
MFE
-
STL
4h 35m1 stop
$293United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
11:20 am - 9:57 pm
STL
-
MFE
10h 37m2 stops
United Airlines Logo
5:25 pm - 10:00 pm
MFE
-
STL
4h 35m1 stop
$296United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
9:57 am - 9:57 pm
STL
-
MFE
12h 00m2 stops
United Airlines Logo
5:25 pm - 10:00 pm
MFE
-
STL
4h 35m1 stop
$298United Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
5:45 pm - 11:25 pm
STL
-
MFE
5h 40m1 stop
United Airlines Logo
5:25 pm - 10:00 pm
MFE
-
STL
4h 35m1 stop
$309United Airlines
Sat, Jan 3 - Wed, Jan 7
Delta Logo
1:00 pm - 11:57 pm
STL
-
MFE
10h 57m2 stops
Delta Logo
5:28 am - 2:47 pm
MFE
-
STL
9h 19m2 stops
$311Delta
Tue, Feb 10 - Sun, Feb 15

American Airlines flights from St. Louis to McAllen

Our best American Airlines deals on St. Louis to McAllen flight tickets
American Airlines
Feb 10
STL9:25 amLambert-St Louis
5h 09m
1 stop
MFE2:34 pmMcAllen Miller Intl
Feb 15
MFE3:41 pmMcAllen Miller Intl
7h 13m
1 stop
STL10:54 pmLambert-St Louis
$256
Find similar
American Airlines
Feb 10
STL6:00 amLambert-St Louis
8h 34m
2 stops
MFE2:34 pmMcAllen Miller Intl
Feb 15
MFE3:41 pmMcAllen Miller Intl
7h 13m
1 stop
STL10:54 pmLambert-St Louis
$261
Find similar
American Airlines
Jan 6
STL6:00 amLambert-St Louis
11h 04m
2 stops
MFE5:04 pmMcAllen Miller Intl
Jan 8
MFE12:20 pmMcAllen Miller Intl
7h 09m
1 stop
STL7:29 pmLambert-St Louis
$342
Find similar

United Airlines flights from St. Louis to McAllen

Our best United Airlines deals on St. Louis to McAllen flight tickets
United Airlines
Jan 24
STL4:42 pmLambert-St Louis
5h 15m
1 stop
MFE9:57 pmMcAllen Miller Intl
Jan 28
MFE9:30 amMcAllen Miller Intl
6h 22m
1 stop
STL3:52 pmLambert-St Louis
$283
Find similar
United Airlines
Jan 24
STL1:15 pmLambert-St Louis
8h 42m
2 stops
MFE9:57 pmMcAllen Miller Intl
Jan 28
MFE5:25 pmMcAllen Miller Intl
4h 35m
1 stop
STL10:00 pmLambert-St Louis
$288
Find similar
United Airlines
Jan 17
STL4:42 pmLambert-St Louis
5h 15m
1 stop
MFE9:57 pmMcAllen Miller Intl
Jan 20
MFE5:25 pmMcAllen Miller Intl
4h 35m
1 stop
STL10:00 pmLambert-St Louis
$291
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to McAllen 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 December 21, 2025.
Use the filters below to find and compare flights from St. Louis to McAllen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Tue 2/10

9:25 am-2:34 pm

1 stop5h 09m

McAllen Miller Intl

Sun 2/15

3:41 pm-10:54 pm

1 stop7h 13m

$256

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Tue 2/10

6:00 am-2:34 pm

2 stops8h 34m

McAllen Miller Intl

Sun 2/15

3:41 pm-10:54 pm

1 stop7h 13m

$261

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/24

4:42 pm-9:57 pm

1 stop5h 15m

McAllen Miller Intl

Wed 1/28

9:30 am-3:52 pm

1 stop6h 22m

$283

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/24

1:15 pm-9:57 pm

2 stops8h 42m

McAllen Miller Intl

Wed 1/28

5:25 pm-10:00 pm

1 stop4h 35m

$288

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/17

4:42 pm-9:57 pm

1 stop5h 15m

McAllen Miller Intl

Tue 1/20

5:25 pm-10:00 pm

1 stop4h 35m

$291

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/17

4:42 pm-9:57 pm

1 stop5h 15m

McAllen Miller Intl

Tue 1/20

5:25 pm-10:00 pm

1 stop4h 35m

$293

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/17

11:20 am-9:57 pm

2 stops10h 37m

McAllen Miller Intl

Tue 1/20

5:25 pm-10:00 pm

1 stop4h 35m

$296

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/17

9:57 am-9:57 pm

2 stops12h 00m

McAllen Miller Intl

Tue 1/20

5:25 pm-10:00 pm

1 stop4h 35m

$298

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 1/3

5:45 pm-11:25 pm

1 stop5h 40m

McAllen Miller Intl

Wed 1/7

5:25 pm-10:00 pm

1 stop4h 35m

$309

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Tue 2/10

1:00 pm-11:57 pm

2 stops10h 57m

McAllen Miller Intl

Sun 2/15

5:28 am-2:47 pm

2 stops9h 19m

$311

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 McAllen from

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

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 day to depart on your flight to McAllen?

On average, the least expensive day to fly to McAllen from St. Louis is on a Thursday. momondo users have found tickets for Thursday departures for as low as $292. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to McAllen for around $541.

What is the cheapest time of day to depart on your flight to McAllen?

Flying to McAllen from St. Louis in the morning is the least expensive time of day to depart. momondo users have found prices as low as $339 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to McAllen is in the afternoon when prices are around $517.

Can stopping save me money on St. Louis to McAllen flights?

You could potentially save up to 31% on your flight if you consider stops on a St. Louis to McAllen flight.

When to book flights from St. Louis to McAllen

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

Cheap St. Louis to McAllen (STL to MFE) flight deals and tips

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

Fastest flight time

5h 15m

Direct flights

None
The fastest flight from St. Louis to McAllen takes 5h 15m
There are no direct flights from St. Louis to McAllen. There are no popular flight routes from St. Louis to McAllen.
Search flight deals

  • How far is Lambert-St Louis to McAllen Miller Intl by plane?

    The distance between Lambert-St Louis and McAllen Miller Intl is about 976.2 mi. By plane, this route typically takes 5h 15m.

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

    Prices for flights from Lambert-St Louis Airport to McAllen Miller Intl Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to McAllen Miller Intl Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to McAllen Miller Intl Airport.

  • What documentation or ID do you need to fly to McAllen Miller Intl Airport?

    The travel and health documents you'll need for your trip to McAllen Miller Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at McAllen Miller Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from St. Louis to McAllen

Compare and see reviews for airlines that fly from St. Louis to McAllen with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

Traveling to a place near McAllen?

Book flights to McAllen if you plan to visit one of these locations
Weslaco
Pharr
Mission
Edinburg

Why use momondo?

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

Finding the right flight to McAllen from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to McAllen quick and easy, saving you time and money.

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

Flights from St. Louis to McAllen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to McAllen 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 McAllen right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to McAllen from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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