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McAllen

$376+ Cheap flights from St. Louis to McAllen (STL - MFE)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MFE
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
1 adult, Economy
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Cheap 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 May 11, 2026.

This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:15 am
STL
-
MFE
1 stop7h 12m
United Airlines
Sat 8/295:19 am
MFE
-
STL
2 stops10h 12m
United Airlines
Deal found 5/10$376
This American Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:40 am
STL
-
MFE
1 stop4h 46m
American Airlines
Mon 11/25:34 am
MFE
-
STL
1 stop5h 03m
American Airlines
Deal found 5/8$377
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am
STL
-
MFE
2 stops10h 01m
Delta
Mon 11/212:47 pm
MFE
-
STL
2 stops10h 52m
Delta
Deal found 5/11$395
This United Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/301:13 pm
STL
-
MFE
2 stops9h 43m
United Airlines
Sun 6/75:00 am
MFE
-
STL
1 stop5h 07m
United Airlines
Deal found 5/6$444
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:44 pm
STL
-
MFE
1 stop5h 04m
United Airlines
Sun 5/175:15 am
MFE
-
STL
1 stop4h 15m
United Airlines
Deal found 5/8$455

Find flight deals from St. Louis to McAllen

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to McAllen (MFE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$376
(United Airlines)

Popular in

July

Cheapest in

February

Average price

$442
Provider with most accurate pricing for Lambert-St Louis-McAllen Miller Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-McAllen Miller Intl flights.
Search Deals
From Lambert-St Louis to McAllen Miller Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated May 11, 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

Tue 8/25

6:15 am-1:27 pm

1 stop7h 12m

McAllen Miller Intl

Sat 8/29

5:19 am-3:31 pm

2 stops10h 12m

$376

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Thu 10/29

6:00 am-4:01 pm

2 stops10h 01m

McAllen Miller Intl

Mon 11/2

12:47 pm-11:39 pm

2 stops10h 52m

$395

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 5/30

1:13 pm-10:56 pm

2 stops9h 43m

McAllen Miller Intl

Sun 6/7

5:00 am-10:07 am

1 stop5h 07m

$444

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Thu 10/29

8:30 am-3:31 pm

1 stop7h 01m

McAllen Miller Intl

Mon 11/2

5:34 am-10:37 am

1 stop5h 03m

$463
Quickest round-trip

St. LouisMcAllen

STL - MFE

STLMFE

Lambert-St Louis

Sat 7/18

7:23 pm-12:15 am

1 stop4h 52m

McAllen Miller Intl

Sat 8/1

1:43 pm-6:33 pm

1 stop4h 50m

$474

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Sorted by cheapest first

Compare providers for flights from St. Louis to McAllen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to McAllen in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-McAllen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-McAllen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-McAllen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-McAllen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-McAllen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

How much does it cost to fly round-trip from St. Louis to McAllen?

Reviews of airlines servicing McAllen

Get insights into the airlines that provide service to McAllen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to McAllen. Reviews last updated May 11, 2026.
Peruse reviews from past customers who have flown with 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.
American Airlines
7.1
Good
11,665 reviews

Comfort

7.2

Crew

7.9

Overall

7.1

Boarding

7.5

Entertainment

6.9

Food

6.4

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.
American Airlines
7.1
Good
11,665 reviews
American Airlines
7.1
Good
11,665 reviews

Comfort

7.2

Crew

7.9

Overall

7.1

Boarding

7.5

Entertainment

6.9

Food

6.4

Reviews

1 / 20
8.0
Excellent

Monica,Nov 2025

JAC - DFW

At least there was an option of entertainment on this flight.

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.

  • How long is the flight from St. Louis to McAllen?

    Airlines like United Airlines, American Airlines, and Delta fly from St. Louis to McAllen in about 4h 46m. The time it takes to get you to your destination can typically vary by up to 5h 15m. Airlines will cover a distance of 981 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly 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 $196 on this airline. American Airlines is currently priced 55% 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.

See more FAQs

Traveling to a place near McAllen?

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

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Top airline flying from St. Louis to McAllen

Discover the top airline that operate flights from St. Louis to McAllen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$433FlexibilityNo cancel feeOn-time71%

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