What are the cheapest airlines flying from St. Louis to McAllen round-trip?

Our cheapest airline available from St. Louis to McAllen is American Airlines. Our recent data shows that you can find tickets from as low as $239 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $259 and $673 round-trip. American Airlines is currently priced 38% below the average price you’ll pay for this route.

What is the cheapest day to fly from St. Louis to McAllen?

Travelers seeking maximum savings on their St. Louis to McAllen flight should consider departing on Thursday mornings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in McAllen ranges from 0.9 - 4.5 inches per month. September is typically the wettest month, when rainfall can reach 4.5 in. November is typically the driest time to visit McAllen when rainfall is around 0.9 in.

If weather is an important factor for your trip to McAllen, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 60.8 F).

What is the cheapest day to fly round-trip from St. Louis to McAllen?

It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from St. Louis to McAllen?

February can be a great time to fly to McAllen from St. Louis with a flight ticket averaging about $387. Cheapflights users have found deals in the month of February for as cheap as $256. The most expensive prices can be found in the month of July.

Can I find deals for flights from St. Louis to McAllen that include hotel bookings?

Yes. In addition to deals on St. Louis to McAllen flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to McAllen?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to McAllen.

Can I find deals for business class flights from St. Louis to McAllen?

Yes. Cheapflights offers flight deals from St. Louis to McAllen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$189+ Flights from St. Louis to McAllen

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Cheap flight deals from St. Louis to McAllen

Round-trip from	$239 (American Airlines)
One-way from	$189 (American Airlines)
Popular in	July
Cheapest in	February
Average price	$645

From Lambert-St Louis to McAllen Miller Intl

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One-way flight from Lambert-St Louis to McAllen Miller Intl

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Highest demand for flights based on searches. 20% potential increase in price ($99 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from St. Louis to McAllen

Cheapest flights from St. Louis to McAllen
Explore the most affordable flight options available from St. Louis to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Sat 9/275:18 amSTL - MFE

1 stop4h 50mAmerican Airlines

Sat 10/1810:38 amMFE - STL

1 stop5h 45mAmerican Airlines

Deal found 7/1

$239

Sat 10/186:00 amSTL - MFE

2 stops10h 56mDelta

Sat 11/85:30 amMFE - STL

2 stops10h 28mDelta

Deal found 7/1

$259

Thu 9/182:30 pmSTL - MFE

2 stops22h 04mMultiple Airlines

Sun 9/219:02 pmMFE - STL

3 stops19h 43mMultiple Airlines

Deal found 7/2

$400

Sat 10/1812:25 pmSTL - MFE

2 stops9h 32mUnited Airlines

Sun 11/95:02 pmMFE - STL

3 stops22h 27mUnited Airlines

Deal found 7/2

$673

Best flights from St. Louis to McAllen
Discover carefully curated flight deals from St. Louis to McAllen that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Sat 9/275:18 amSTL - MFE

1 stop4h 50mAmerican Airlines

Sat 10/1810:38 amMFE - STL

1 stop5h 45mAmerican Airlines

Deal found 7/1

$239

Sat 10/186:00 amSTL - MFE

2 stops10h 56mDelta

Sat 11/85:30 amMFE - STL

2 stops10h 28mDelta

Deal found 7/1

$259

Thu 9/182:30 pmSTL - MFE

2 stops22h 04mMultiple Airlines

Sun 9/219:02 pmMFE - STL

3 stops19h 43mMultiple Airlines

Deal found 7/2

$400

Sat 10/1812:25 pmSTL - MFE

2 stops9h 32mUnited Airlines

Sun 11/95:02 pmMFE - STL

3 stops22h 27mUnited Airlines

Deal found 7/1

$673

Last-minute flights from St. Louis to McAllen
Discover last-minute flight deals from St. Louis to McAllen. Data last updated July 3, 2025 and is based on user searches.

Thu 7/175:30 amSTL - MFE

1 stop4h 42mAmerican Airlines

Mon 7/215:00 amMFE - STL

1 stop4h 18mAmerican Airlines

Deal found 7/2

$392

Wed 7/235:00 amSTL - MFE

2 stops8h 29mUnited Airlines

Sun 7/277:00 amMFE - STL

1 stop15h 15mUnited Airlines

Deal found 7/3

$630

Sat 7/266:00 amSTL - MFE

2 stops11h 03mDelta

Sat 8/25:25 amMFE - STL

2 stops9h 11mDelta

Deal found 7/3

$558

One-way flights from St. Louis to McAllen
Search for one-way flight options from St. Louis to McAllen. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Tue 7/812:27 pmSTL - MFE

1 stop6h 54mAmerican Airlines

Deal found 6/30

$189

Wed 7/1611:24 amSTL - MFE

2 stops25h 25mMultiple Airlines

Deal found 7/2

$215

Tue 7/83:20 pmSTL - MFE

2 stops17h 33mUnited Airlines

Deal found 6/30

$486

Cheapflights Fare Finder

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

Sat 9/27

5:18 am-10:08 am

1 stop4h 50m

McAllen Miller Intl

Sat 10/18

10:38 am-4:23 pm

1 stop5h 45m

$239

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Thu 9/18

2:30 pm-12:34 pm

2 stops22h 04m

McAllen Miller Intl

Sun 9/21

9:02 pm-4:45 pm

3 stops19h 43m

$400

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Thu 7/17

6:00 am-4:34 pm

2 stops10h 34m

McAllen Miller Intl

Mon 7/21

12:31 pm-9:42 pm

2 stops9h 11m

$684

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Wed 7/23

5:00 am-1:29 pm

2 stops8h 29m

McAllen Miller Intl

Sun 7/27

5:15 am-12:46 pm

2 stops7h 31m

$689

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Tue 7/8

12:27 pm-7:21 pm

1 stop6h 54m

$189

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Wed 7/16

11:24 am-12:49 pm

2 stops25h 25m

$215

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Tue 7/8

3:20 pm-8:53 am

2 stops17h 33m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from St. Louis to McAllen

Have a flexible travel schedule? Discover the best time to fly to McAllen from St. Louis with our price prediction graph.

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to McAllen

What is the cheapest month to book a flight from St. Louis to McAllen?

Currently, September is the cheapest month in which you can book a flight from St. Louis to McAllen (average of $281). Flying from St. Louis to McAllen in December is currently the most expensive (average of $416). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to MFE?

A simple way to save on the total cost of your ticket is to fly from St. Louis to McAllen in the morning. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight at noon.

Reviews of airlines servicing McAllen

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to McAllen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,982 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,861 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,982 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying from St. Louis to McAllen round-trip?
Our cheapest airline available from St. Louis to McAllen is American Airlines. Our recent data shows that you can find tickets from as low as $239 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $259 and $673 round-trip. American Airlines is currently priced 38% below the average price you’ll pay for this route.
Can I find deals for flights from St. Louis to McAllen that include hotel bookings?
Yes. In addition to deals on St. Louis to McAllen flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to McAllen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to McAllen.
Can I find deals for business class flights from St. Louis to McAllen?
Yes. Cheapflights offers flight deals from St. Louis to McAllen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to McAllen?
Currently, September is the cheapest month in which you can book a flight from St. Louis to McAllen (average of $281). Flying from St. Louis to McAllen in December is currently the most expensive (average of $416). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Mission

Pharr

Weslaco

Edinburg

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from St. Louis to McAllen

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$244	Average$563	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$256	Average$394	FlexibilityNo cancel fee	On-time71%

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$189+ Cheap flights from St. Louis to McAllen (STL - MFE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to McAllen with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to McAllen

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to McAllen

Cheapest flights from St. Louis to McAllenExplore the most affordable flight options available from St. Louis to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from St. Louis to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to McAllen that are best for you.

Best time to book a flight from St. Louis to McAllen

Have a flexible travel schedule? Discover the best time to fly to McAllen from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to McAllen

What is the cheapest month to book a flight from St. Louis to McAllen?

What is the cheapest time of day to fly from STL to MFE?

Find hourly flight availability from St. Louis to McAllen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Reviews of airlines servicing McAllen

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to McAllen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to McAllen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to McAllen round-trip?

Can I find deals for flights from St. Louis to McAllen that include hotel bookings?

How can I find direct flights from St. Louis to McAllen?

Can I find deals for business class flights from St. Louis to McAllen?

What is the cheapest month to book a flight from St. Louis to McAllen?

Traveling to a place near St. Louis?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to McAllen

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from St. Louis to McAllen

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Cheapest flights from St. Louis to McAllen
Explore the most affordable flight options available from St. Louis to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.