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Cheap flights from St. Louis to McAllen from $127

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 McAllen departing on 8/8. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to McAllen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
2:22 pm - 11:59 pm
STL
-
MFE
9h 37m
2 stops
Delta Logo
4:02 pm - 11:48 pm
MFE
-
STL
7h 46m
2 stops
$219Delta
Thu, Oct 29 - Mon, Nov 2
Delta Logo
2:22 pm - 11:59 pm
STL
-
MFE
9h 37m
2 stops
Delta Logo
4:02 pm - 11:48 pm
MFE
-
STL
7h 46m
2 stops
$259Delta
Thu, Oct 29 - Mon, Nov 2
United Airlines Logo
7:25 am - 5:44 pm
STL
-
MFE
10h 19m
2 stops
United Airlines Logo
5:19 am - 3:38 pm
MFE
-
STL
10h 19m
2 stops
$354United Airlines
Sat, Aug 22 - Wed, Aug 26
United Airlines Logo
3:13 pm - 9:59 pm
STL
-
MFE
6h 46m
1 stop
United Airlines Logo
5:19 am - 10:10 am
MFE
-
STL
4h 51m
1 stop
$379United Airlines
Sat, Aug 22 - Wed, Aug 26
United Airlines Logo
7:25 am - 5:44 pm
STL
-
MFE
10h 19m
2 stops
United Airlines Logo
5:19 am - 10:10 am
MFE
-
STL
4h 51m
1 stop
$384United Airlines
Sat, Aug 22 - Wed, Aug 26
United Airlines Logo
7:25 am - 5:44 pm
STL
-
MFE
10h 19m
2 stops
United Airlines Logo
5:19 am - 3:38 pm
MFE
-
STL
10h 19m
2 stops
$389United Airlines
Sat, Aug 22 - Wed, Aug 26
American Airlines Logo
7:24 pm - 12:15 am
STL
-
MFE
4h 51m
1 stop
American Airlines Logo
6:03 pm - 11:42 pm
MFE
-
STL
5h 39m
1 stop
$396American Airlines
Sat, Jul 18 - Sat, Aug 8
American Airlines Logo
7:24 pm - 12:15 am
STL
-
MFE
4h 51m
1 stop
American Airlines Logo
6:03 pm - 11:42 pm
MFE
-
STL
5h 39m
1 stop
$397American Airlines
Sat, Jul 18 - Sat, Aug 8
United Airlines Logo
3:13 pm - 9:59 pm
STL
-
MFE
6h 46m
1 stop
United Airlines Logo
5:19 am - 10:10 am
MFE
-
STL
4h 51m
1 stop
$414United Airlines
Sat, Aug 22 - Wed, Aug 26
Delta Logo
8:00 am - 6:18 pm
STL
-
MFE
10h 18m
2 stops
Delta Logo
12:35 pm - 10:03 pm
MFE
-
STL
9h 28m
2 stops
$419Delta
Sat, Jul 25 - Sat, Aug 1

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Delta flights from St. Louis to McAllen

Our best Delta deals on St. Louis to McAllen flight tickets
Delta
Oct 29
STL2:22 pmLambert-St Louis
9h 37m
2 stops
MFE11:59 pmMcAllen Miller Intl
Nov 2
MFE4:02 pmMcAllen Miller Intl
7h 46m
2 stops
STL11:48 pmLambert-St Louis
$219
Delta
Oct 29
STL2:22 pmLambert-St Louis
9h 37m
2 stops
MFE11:59 pmMcAllen Miller Intl
Nov 2
MFE4:02 pmMcAllen Miller Intl
7h 46m
2 stops
STL11:48 pmLambert-St Louis
$259
Delta
Jul 25
STL8:00 amLambert-St Louis
10h 18m
2 stops
MFE6:18 pmMcAllen Miller Intl
Aug 1
MFE12:35 pmMcAllen Miller Intl
9h 28m
2 stops
STL10:03 pmLambert-St Louis
$419

American Airlines flights from St. Louis to McAllen

Our best American Airlines deals on St. Louis to McAllen flight tickets
American Airlines
Jul 18
STL7:24 pmLambert-St Louis
4h 51m
1 stop
MFE12:15 amMcAllen Miller Intl
Aug 8
MFE6:03 pmMcAllen Miller Intl
5h 39m
1 stop
STL11:42 pmLambert-St Louis
$396
American Airlines
Jul 18
STL7:24 pmLambert-St Louis
4h 51m
1 stop
MFE12:15 amMcAllen Miller Intl
Aug 8
MFE6:03 pmMcAllen Miller Intl
5h 39m
1 stop
STL11:42 pmLambert-St Louis
$397
American Airlines
Jul 18
STL5:28 pmLambert-St Louis
5h 09m
1 stop
MFE10:37 pmMcAllen Miller Intl
Aug 8
MFE6:03 pmMcAllen Miller Intl
5h 39m
1 stop
STL11:42 pmLambert-St Louis
$422

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 July 1, 2026.
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

Cheapest round-trip

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Thu 10/29

2:22 pm-11:59 pm

2 stops9h 37m

McAllen Miller Intl

Mon 11/2

4:02 pm-11:48 pm

2 stops7h 46m

$219

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Thu 10/29

2:22 pm-11:59 pm

2 stops9h 37m

McAllen Miller Intl

Mon 11/2

4:02 pm-11:48 pm

2 stops7h 46m

$259

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 8/22

7:25 am-5:44 pm

2 stops10h 19m

McAllen Miller Intl

Wed 8/26

5:19 am-3:38 pm

2 stops10h 19m

$354

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 8/22

3:13 pm-9:59 pm

1 stop6h 46m

McAllen Miller Intl

Wed 8/26

5:19 am-10:10 am

1 stop4h 51m

$379

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 8/22

7:25 am-5:44 pm

2 stops10h 19m

McAllen Miller Intl

Wed 8/26

5:19 am-10:10 am

1 stop4h 51m

$384

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 8/22

7:25 am-5:44 pm

2 stops10h 19m

McAllen Miller Intl

Wed 8/26

5:19 am-3:38 pm

2 stops10h 19m

$389
Quickest round-trip

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 7/18

7:24 pm-12:15 am

1 stop4h 51m

McAllen Miller Intl

Sat 8/8

6:03 pm-11:42 pm

1 stop5h 39m

$396

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 7/18

7:24 pm-12:15 am

1 stop4h 51m

McAllen Miller Intl

Sat 8/8

6:03 pm-11:42 pm

1 stop5h 39m

$397

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 8/22

3:13 pm-9:59 pm

1 stop6h 46m

McAllen Miller Intl

Wed 8/26

5:19 am-10:10 am

1 stop4h 51m

$414

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 7/25

8:00 am-6:18 pm

2 stops10h 18m

McAllen Miller Intl

Sat 8/1

12:35 pm-10:03 pm

2 stops9h 28m

$419

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 month to fly to McAllen?

The month of January is, on average, the cheapest month to fly to McAllen from St. Louis, with most prices found around $0. If you don’t want to visit McAllen in January, then you should wait until February to fly from St. Louis, when ticket prices are also cheap, with an average price of $293.

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

You could potentially save up to 36% 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

6h 54m

Direct flights

None
The fastest flight from St. Louis to McAllen takes 6h 54m
There are no direct flights from St. Louis to McAllen. There are no popular flight routes from St. Louis to McAllen.
Search flight deals

Frequently asked questions about flying from St. Louis to McAllen

  • 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 6h 54m.

  • 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 $240Free CancellationRating
7.1
11,766 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
Edinburg
Mission

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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